Antenna post for radio relay station

FIELD: radio engineering, communication.

SUBSTANCE: antenna post for radio relay station comprises: a base made of steel in form of a base plate, a telescopic mast shaft consisting of one fixed section and four movable sections made from duralumin tubes of different diameter, a latch and a reading scale on the base plate, a cross-over winch built into the fixed section, having a drive and a double steel cable wounds on its drum, revolving rings with three lugs made in the top part of the fixed section and each of the four movable sections, a cantilever beam mounted at the top of the fourth movable section, the cantilever beam being fitted with an antenna unit having two antennae, a telescopic mast mounting consisting of six winches, on the axis of each of which there are two drums isolated from each other, on each of which is wound a steel cable of the corresponding guy-wire, six steel poles hammered into the ground at a small angle, on each of which is mounted the corresponding winch; a feeder cable, which is connected through the antenna unit to the first and second antennae, is mounted on the shaft of the mast by braces.

EFFECT: providing stable operation of the device in different climatic conditions and shorter time for unfolding the mast.

3 cl, 1 dwg

 

The invention relates to the design elements of radio systems and can be used as antenna mast device for radio-relay stations operating in the field.

It is known that radio stations use different antenna mast device, comprising telescopic masts of different heights from 12 to 20 m and more, which are placed as directed, and omnidirectional antennas. These masts can be installed on both fixed and mobile objects.

Closest to the technical essence of the present invention is the antenna-mast system (AMU), described in [1], which contains rapidly unfolding telescopic mast mounted on it with a console, which is equipped with an antenna unit, consisting of two vertical log periodic antennas located in a vertical plane.

The main disadvantage of the known antenna mast device is that it is not provided for mounting the mast on the ground and there is no possibility of folding mast for transportation. This limits the applicability of the known device in the radio relay stations operating in the field, as the absence of mounting of the mast may cause modestiam wind may be disturbed orientation of the antennas, installed on the mast, will deteriorate the stability of the connection and may even be completely discontinued organized by radiorelay communication.

The aim of the invention is to ensure the stability of the device in different climatic conditions and reducing the time of deployment of the mast.

This objective is achieved in that the antenna maktoom unit (AMU) for radio-relay station containing a telescopic mast mounted on the top of the console, which is equipped with an antenna unit, comprising first and second antenna telescopic mast design has a composite comprising a base, made of steel in the form of a base plate, on which with the aid of ball bearings secured to the shaft of the mast, consisting of one fixed and four movable sections, made of duralumin tubes of different diameter, with the largest diameter has a fixed section and the smallest diameter is the fourth movable section that allows the movable sections to freely enter into a fixed section when the folding mast with its collapse, the base plate includes a stopper for fixing the mast with its orientation in azimuth and scale of reference of the orientation angle, the fixed section is integrated bypass winch drive and wound on its drum double (lifting and lowering ve is VI) power wire, the second end of which is attached to the upper inside of the fourth movable sections, in the upper part of the stationary section and in each of the four movable sections are made of a rotating ring with three lugs each, designed for fastening cables of the respective braces on the top of the fourth movable section attached to the console, which is equipped with an antenna unit, on the trunk of the mast with brackets fixed feeder cable connected through the antenna unit to the antenna; AMU further comprises fastening the telescopic mast, consisting of six traction winches, on an axis, each of which has two isolated from each drum, each of which wound steel cable delays, and six steel stakes, each of which is mounted one of the traction winch, at the first, second and third ears rotating ring stationary section secured using carbines second ends of the cables guys posted on the first reel, respectively, the first, third and fifth traction winches, on the first, second and third ears rotating ring of the second movable section fixed with carbines second ends of the cables braces placed on second drums, respectively, the first, third and fifth traction winches, on the first, second and third ears rotating ring of the third mobile is ecchi fixed using carbines second ends of the cables guys, placed on the first reel, respectively, of the second, fourth and sixth traction winches, on the first, second and third ears rotating ring of the fourth movable section fixed with carbines second ends of the cables braces placed on second drums, respectively, of the second, fourth and sixth traction winches, to ensure the sustainability of the telescopic mast on the ground traction winch exploded on the ground and are located in pairs (first and second, third and fourth, fifth and sixth winch) through 120 degrees around the circumference with a diameter of 30 meters, and the stakes are attached winch is driven into the ground at a slight angle (about 20 degrees to the vertical in the opposite direction from the center of the mast.

Comparative analysis with the prototype shows that the proposed antenna-mast system for radio-relay station has new blocks and their implementation: the implementation of the telescopic mast comprising a base made of steel base plates, the mast, consisting of one fixed and four movable sections, made of duralumin tubes of different diameter, embedded in the stationary section of the bypass winch drive and wound on its drum dual power steel cable designed for lifting sections of the masts is, mounting mast, consisting of six identical traction winches that have two isolated from each drum with wound steel cables braces, six stakes for securing the traction winch, and the bypass actuator winch made in the form of a manual actuator, consisting of removable lever arm and semi-automatic driven type electric drills, which contributed to a significant reduction of temporal parameters of mast lift and reduction efforts of operators that deploy AMU in the field.

When studying well-known technical solutions in this field of technology a collection of characteristics and performance of device elements that distinguish the claimed antenna-mast system for radio-relay station was not identified. The proposed solution is significantly different from the currently known technical solutions.

Thus, the claimed antenna-mast system for radio-relay station corresponds to the criteria of the invention of "novelty". The comparison of the proposed solutions with other technical solutions shows that the input blocks and elements are widely known and more creativity in their implementation is not required. However, their introduction in the specified communication with other elements of the design claimed in the device they exhibit new properties, that leads to achievement.

This allows to conclude that the technical solutions according to the criterion of "significant differences".

The proposed device is structurally designed using commercially available materials. Was fabricated prototype antenna mast device, which was tested on the basis of which the conclusion was made about the possibility of industrial implementation of the proposed antenna mast device.

The drawing shows schematically the antenna-mast system for radio-relay station in the expanded state.

Antenna-mast unit (AMU) for radio-relay station comprises a base made of steel base plate 1, the barrel 2 of the telescopic mast, consisting of one stationary section 3, first 4, second 5, third 6 and 7 fourth movable sections, made of duralumin tubes of different diameter.

The base plate 1 includes a stopper 8 for fixing the mast with its orientation in azimuth and scale 9 reference orientation angle.

In the lower part of the stationary section 3 integrated bypass the winch 10 to the actuator 11 and is wound on its drum double (lifting and lowering branches) power steel cable 12.

In the upper part of the stationary section 3 is made rotatable ring 13 with three lugs, and the upper part is erway 4, the second 5, third 6 and fourth 7 of the movable panels are installed respectively rotating rings 14, 15, 16 and 17 with three lugs each.

At the top of the fourth movable section 7 is fixed console 18 which includes the antenna unit 19 includes first 20 and second 21 of the antenna.

Antenna-mast system also includes fastening the telescopic mast, which consists of the first 22 of the traction winch, the axis of which is placed isolated from each other, the first 23 of the reel on it steel cable 24 delays and the second 25 reel on it steel cable 26 delays; 27 second traction winch, the axis of which is placed isolated from each other by the first drum 28 with wound steel cable 29 of a delay and 30 second reel on it steel cable 31 delays; third 32 of the traction winch, the axis of which is placed isolated from each other by the first 33 reel on it steel cable 34 delays 35 and the second drum with wound steel cable 36 delays; 37 fourth traction winch, the axis of which is placed isolated from each other by the first 38 reel on it steel cable 39 procrastination and second 40 reel on it steel cable 41 delays; 42 fifth traction winch, the axis of which is placed isolated from each other by the first drum 43 with namata the s ' it steel cable 44 delays and the second 45 reel on it steel cable 46 delays; sixth 47 traction winch, the axis of which is placed isolated from each other, the first 48 a reel on it steel cable 49 delays and the second 50 reel on it steel cable 51 delays.

AMU further comprises a first 52 and second 53, 54 third, fourth, 55, 56 fifth and sixth 57 steel stakes. At the first 52 steel Cola fixed first 22 traction winch, the second 53 - 27 second traction winch, on the third 54 - 32 third traction winch, on the fourth 55 - 37 fourth traction winch, on the fifth 56 - 42 fifth traction winch and on the sixth 57 steel Cola fixed respectively 47 sixth traction winch.

Traction winch exploded on the ground and are located in pairs (the first 22 and second 27, the third 32 and fourth 37, 42 fifth and sixth 47) through 120 degrees around the circumference with a diameter of 30 meters. Stakes, on which is mounted a traction winch is driven into the ground at a slight angle (about 20 degrees) to the vertical in the opposite direction from the center of the mast 2.

On the trunk of the mast 2 by means of brackets fixed feeder cable 58 connected through the antenna unit 19 of the first 20 and second 21 antennas.

To provide a more secure attachment of the mast base plate 1 can be fixed on the ground with the help of an additional stake of square section through the holes in the plate (in the drawing they are not the rendered).

Telescopic mast 2 is designed for lifting the first 20 and second 21 antennas at a height of twenty meters.

The trunk of the mast 2 tubular, telescopic consists of one stationary (3) and four (4, 5, 6 and 7) movable partitions.

In the lower part of the tubes of the first 4, second 5 and third 6 of the movable panels installed lock, connecting the sections together. The castle is made in the form of a welded casing, within which is fixed the dog with the roller and the stop lever with spring.

Inside the pipe 7 fourth movable sections mounted tension device, which pulls the standpipe end power steel cable 12 with a diameter of 4 mm.

The stationary section 3 structurally made of duralumin pipe with a diameter of 110 mm, and the diameter of the first pipe 4 and the subsequent moving of the sections is reduced by about 12 mm, the diameter of the pipe 7 fourth movable section is not more than 60 mm

Bypass the winch 10 with the actuator 11 is used for extending and folding the movable sections of the telescopic mast.

As the bypass winch can be used winch, containing the drum, special nut, clevis pin, axle, brakes, first gear, ratchet, wire, spring, the dog, the axis of the pawl, the second gear, the first plug, the actuator is in the form of removable lever arm to the mast, a bronze ring, a second current is GCC, third gear, cone sleeve and finger, with the first gear on the end with the special nut has a screw socket and the nut on the end side of the first gear has a ledge, a second gear mounted on the axis of the brake by means of pins, the first gear, tapered sleeve, ratchet ring and a bronze ring freely planted axle brakes, special nut mounted on the axis of the brake by means of the pin with a clearance formed between the helical protrusion on its side and screw hole on the end of the first gear, the third gear is integral with the drum on which is wound a double power steel cable.

Bypass the winch 10 is mounted in the housing, is fixed in the lower part of the stationary section 3.

As the actuator 11 bypass winch 10 can be used hand-drive, consisting of a lever and arm, or semi-automatic drive, made in the form of an electric drill, in which instead of the drill used nozzle, one end of which is inserted into the Keyless drill Chuck, and the other end is fixed on the shaft by-pass of the winch 10. While in the above-mentioned drills must be provided by the mode switch and the device is reverse to ensure rotation of the shaft bypass the winch in the reverse direction (counterclockwise).

As electricity is some drills can be used to drill the type of Makita 6410.

This drill provides speed 2800 rpm with AC current with a nominal voltage of 220 V and power consumption 530 watts. It has a mode switch and the device is reverse, convenient and reliable switch.

As the electric drive can also be used a drill with power from a DC source with a nominal voltage of 28 V and a power consumption of 500 watts.

As the first antenna 20 of the antenna unit 19 can be used antenna representing a log periodic antenna that contains m (m≥5) vibrators designed for directional directional radiation and reception of radio signals in the VHF frequency band and the second antenna 21 of the antenna unit 19 is a phase grating designed for directional directional radiation and reception of radio signals in the UHF frequency range that contains two emitter type Z, a flat reflector and power divider.

Each of the six(22, 27, 32, 37, 42, 47) traction winch consists of a body frame type, in which the axes of the two drums rotate. Each reel is rotated by the handle, which can sit inside of the drum and to hold the spiral spring. On each reel fixed end of the cable guy, on the second end of the criminal code of EPLAN carabiner for attaching the ropes to the corresponding ear of the rotating ring stationary sections 3 and each (4, 5, 6 and 7) of the movable sections of the telescopic mast 2.

Each traction winch mounted on one of the stakes (52-57) using tool (release). For fixing the reel in position on the outer surface of the cheeks are the tabs that include tooth retaining lever. On each reel set gland plate, preventing inadvertent slippage of the cable and providing a uniform stacking it with the winding. The drums must be marked tier guys, and carbines of stay ropes and ears rotating rings should be painted in the appropriate color.

After joining the traction winch to the coke guy freely unwound from the drum. After fixing ropes on the trunk of the mast and sections of the tension cable is rotating the handle counterclockwise while holding the allotted lever. In this case, the tooth of the lever prevents the rotation of the drum. After the tension of the ropes, you must enter the lever in engagement with the ledges of the cheeks. Winder for guys on drums (when you minimize AMU), you must pull the lever and turn the handle counterclockwise to wind on the drum the rope.

Delays(24, 26, 29, 31, 34, 36, 39, 41, 44, 46, 49 and 51) is made of a steel wire with a diameter of 3 mm.

As the stakes 52-57 for securing the traction l the Bedok can be used stakes, made from steel. You can also use two types of stakes for the different operating conditions of antenna mast device: winter (short), length of about 360 mm, and summer (long), length of about 750 mm

Work when deploying and collapsing antenna mast device described below.

The operation of cross-hoist when lifting sections.

When lifting sections of the telescopic mast 2 by means of the actuator 11 is continuously rotated shaft bypass winch 10 in a clockwise direction. Initially when lifting moves the entire package of the movable panels inside the fixed section 3. The rise continues until the lever with roller will not fit in the fixed window section 3. Turning to the window, roller lever will connect two sections - fixed 3 and the first 4 movable section. At the same time you release the shank 5 second movable section that will allow you to begin the nomination etc.

Thus the axis of the winch 10 is screwed on the threads of the pinion nut and the disks tightly clamp ratchet wheel. Due to friction both discs start to rotate together and stretch zapasovany between the power cable 12. Dog when it jumps on the teeth of the ratchet wheel, whereupon the winch mechanism listening characterized heard. If you are lifting to stop the rotation shaft of the winch, the effort is of Yama will counteract the force consisting of weight lifted of the mast and the weight of the antenna device. This force will tend to rotate the gear in the opposite direction, that is, to tilt counterclockwise. As the ratchet wheel is held by the dog, resting in the hollow ratchet wheel, the bypass mechanism of the winch 10 to rotate will not.

The operation of cross-winch 10 by lowering the sections of the mast.

When folding stem the decline starts top (7 fourth movable section), as it has no lock. When the shank above the partition to shut-off lever the lower section is moved down and the release lever with roller. The roller lever is pushed from a window connected sections and thereby separating adjacent sections (lock open).

When lowering the sections of the mast shaft of the winch rotates counterclockwise. The disks diverge and rastormazivate ratchet wheel, forming the operational gap between them. In this case, the dog is kept from rotation only to ratchet, without hindering the rotation of the disks, and power cable 12 moves in the opposite direction.

If lowering sections to stop the rotation shaft of the winch, the force action on the cable 12 from the weight of the raised sections and the weight of the antenna device will rotate the gear-nut counterclockwise. The discs hold the ratchet wheel. Further rotation will stop, because the dog does not rotate the ratchet and tightly against him drives counterclockwise, that is, on the descent and in this case, spontaneous lowering of the mast sections will not occur.

The deployment of the telescopic mast.

The deployment of the mast is made on a 30×30 m team of four people.

Initially, you must determine the desired installation location the mast, identifying it with the pin. Then determine where driving stakes, remote from the center of the mast along the radius of 15 m and spaced 120 degrees around the circumference. To score two stake in each of the three specific points, and stakes should be installed at a slight angle (about 20 degrees) in the opposite direction from the center of the mast. Mounted on stakes drums with guys, unwinding the ropes of guys towards the position of the mast to straighten them and lay on the ground.

To install the mast 2 support plate 1 so that 0 (zero) degrees on the housing coincides with a mark on the base of the mast. Mounted on the mast of one or two antennas, attach cables of guys to oscam rotating rings on the stationary and movable sections of the mast, guided by the color printed on the ropes and carabiners on the ears, providing their mutual arrangement with regard to the management of the subsequent rotation of the mast. The mast is to be installed on the ground vertically to secure the cables (24, 34 and 44) of the first tier of guys. The mast should be so that the letter "C"printed on the stand mast, was directed to the North.

To finally fix the wires of the braces of the first tier, and then the drums traction winches mounted on stakes, to stop snaps, giving the trunk of a mast in the vertical position. Attach the actuator 11 (lever handle or electric drill) to the shaft of the bypass winch 10 and rotating it clockwise to raise the movable section (4-7) telescopic mast 2. It should be remembered that the force applied to the handle of the lifting winch 10, must not exceed 20 kg

For secure fastening and allow operation at high wind loads, it is necessary to secure each extended section with the guys. The trunk of the mast must stand vertically without sagging.

During deployment, the actuator 11 of the winch rotates clockwise. While lifting the branch of the power cable 12 is bypassed through the winch 10 and raises the upper section. The upper mast section is coupled with the other movable sections using locks placed in the lower parts of the movable panels. As a result, in the beginning of the mast is on the rise all movable partitions. Upon reaching the extreme top the situation in the first (bottom) 4 section lock is activated, which fixes the first section 4 in the upper position and releases from engagement following. Similarly the extension of the second 5, third 6 and fourth 7 movable partitions.

The orientation of the antennas 20 and 21 on the correspondent is made by turning the mast 2 around its axis by 5-10 degrees in any direction to align the operating position of the antenna with a given direction in azimuth.

Principle of operation when the collapse of the mast.

When collapsing the telescopic mast 2 tubes of the movable panels are inside the fixed section 3, starting with the first 4 sections, the second section 5 is included inside the first 4, 6 third section inside the second 5, and the fourth section 7 enters the third 6. In the collapsed state telescopic mast has a height of from 4.9 to 5.2 m

During the rotation of the actuator 11 of the winch 10 counterclockwise standpipe branch of the power cable 12 is bypassed through the winch and forcing down the upper section. The top section at the end of its stroke presses a lever lock, located in the lower part of the second section. Lock the second section disengages from the first section is engaged with the upper section and both sections continue to move down.

When collapsing the telescopic mast 2, the actuator 11 with the shaft bypass winch 10 is rotated counterclockwise, as a consequence, the whole mechanism of rotations is carried out in the direction, contrary to that indicated by arrows (for the case of mast). This special nut for the top of your screw protrusion passes to slice spiral troughs on the first gear. Between the special nut and the first gear creates a gap size of 0.1-0.3 mm as the first gear sits freely on the axis, it will move to the left along this axis and the friction clutch will cease. First gear will rotate the third gear with the drum. With the last to get out of the rope. Simultaneously, under the action of its own weight of all moving knees and the antenna device of the pipe sections will be able to enter one another until, until you meet the clamps on them. After the descent of the clamps rotation of the actuator 11 with the shaft of the winch 10 will stop. Finger, moving in the slot of the drum rests in the notches of the housing and limits the rotation of the actuator 11 when the collapse of the mast. After the mast is fully collapsed, further rotation of the actuator 11 of the winch 10 counterclockwise will become impossible. This eliminates the possibility of entanglement of the power cable 12 bypass winch 10.

If the collapse of the mast to stop the rotation of the arm, the force acting on the power cable 12 when deploying and collapsing the mast in the same direction will cause the entire mechanism of the winch 10 to turn in the mod is tnou side. Due to the pressure of the teeth of the third gear engaged with the drum, the teeth of the first gear of the latter under the action of the helical protrusion will move to the right and get the friction clutch. A dog resting in the hollow ratchet wheel, he will not be able to turn around the friction brake, and the winch mechanism 10 will fail to rotate. As a result of this self-lowering of the mast sections will not occur.

The technical effect of the proposed antenna mast device for radio-relay station is to increase the stability of the device in different climatic conditions, the reduction of temporal parameters for deploying and collapsing the telescopic mast achieved through the use of two types of drive shaft bypass winches used for lifting mast - manual and semi-automatic, including through the use of an electric drill with a special device to rotate the shaft bypass hoist when lifting the mast sections and the possibility of using electric drill for screwing stake fastening the mast to the ground.

The introduction of a four tier system mounting mast with three guys in each tier allowed to provide stable operation of the AMU, and the presence of a base plate having a stopper for fixing the mast at orientation in azimuth and scalable reference orientation angle, improved orientation of the antennas on correspondent and time settings relay line. Moreover, the antenna-mast system provides stable operation in wind loads up to 30 m/s

As shown by calculations and operating experience, the deployment of the telescopic mast with semi-automatic actuator based on electric drills was approximately 10 min instead of 20 min for AMU with manual transmission.

The sources of information.

1. RU patent for useful model №67780, CL H01Q 21/06, 2007 (prototype).

1. Antenna-mast unit (AMU) for radio-relay station containing a telescopic mast mounted on the top of the console, which is equipped with an antenna unit, comprising first and second antennas, wherein the telescopic mast design has a composite comprising a base, made of steel in the form of a base plate, on which with the aid of ball bearings secured to the shaft of the mast, consisting of one fixed and four movable sections, made of duralumin tubes of different diameter, with the largest diameter has a fixed section and the smallest diameter of the fourth movable section that allows a mobile sections to freely enter into a fixed section when the folding mast p and its collapse, the base plate includes a stopper for fixing the mast with its orientation in azimuth and scale of reference of the orientation angle, the fixed section is integrated bypass winch drive and wound on its drum double (lifting and lowering branches) power wire, the other end of which is attached to the upper inside of the fourth movable sections, in the upper part of the stationary section and in each of the four movable sections are made of a rotating ring with three lugs each, designed for fastening cables of the respective braces on the top of the fourth movable section attached to the console, which is equipped with an antenna unit, on the trunk of the mast using brackets fixed feeder cable connected through the antenna unit to the antenna; AMU further comprises fastening the telescopic mast, consisting of six traction winches, on an axis, each of which has two isolated from each drum, each of which is wound steel cable delays, and six steel stakes, each of which is mounted one of the traction winch, at the first, second and third ears rotating ring stationary section secured using carbines second ends of the cables guys posted on the first reel, respectively, the first, third and fifth traction winches, on the first, second and third ears rotations is the existing ring of the second movable sections fixed with carbines second ends of the cables guys, posted on second drums, respectively, the first, third and fifth traction winches, on the first, second and third ears rotating ring of the third movable section fixed with carbines second ends of the cables guys posted on the first reel, respectively, of the second, fourth and sixth traction winches, on the first, second and third ears rotating ring of the fourth movable section fixed with carbines second ends of the cables braces placed on second drums, respectively, of the second, fourth and sixth traction winches, to ensure the sustainability of the telescopic mast on the ground traction winch exploded on the ground and are located in pairs (first and second third and fourth, fifth and sixth winch) through 120° around the circumference with a diameter of 30 m, and the stakes are attached winch is driven into the ground at a slight angle (about 20°) to the vertical in the opposite direction from the center of the mast.

2. Antenna-mast system according to claim 1, characterized in that the bottom of the first, second and third movable sections of the telescopic mast is installed lock, containing a little dog with a roller and the locking lever, by means of which the connection (disconnect) the sections when deploying (coagulation) of the telescopic mast.

3. Antenna-mast device is istwo according to claim 1, characterized in that the bypass actuator winch is made in the form of a manual actuator, consisting of a lever with a handle to rotate the shaft of the winch, and/or semi-automatic drive, made in the form of an electric drill, in which instead of the drill used nozzle, one end of which is inserted into the Keyless drill Chuck, and the other end is fixed on the input shaft bypass winch, while in the above-mentioned electric drills provided by the mode switch and the device is reverse to ensure rotation of the shaft bypass the winch in the reverse direction (counterclockwise) when the collapse of the telescopic mast.



 

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1 cl, 30 dwg, 2 tbl

FIELD: the invention refers to the field of radio technique namely to antenna technique.

SUBSTANCE: it may be used at designing antenna arrays for communication systems, location and electronic warfare. The technical result is in increasing the coefficient of efficiency of an antenna, range of action and efficiency of a radio system due to providing possibility of excitation of electromagnetic field in the shape of a bi -polar ultra short impulse signal that increases directivity of an antenna array. According to the proposed technical solutions an informative signal is transformed into an electromagnetic field in transmission lines and received electromagnetic field is divided along n horn oscillators with a tone-modulated electro magnetic wave antenna array. After division of the electromagnetic field along horn oscillators one part of the unipolar monoimpulse electromagnetic field is delayed in time for the half of the duration of the informative signal, the phase of this part of the electromagnetic field is transformed on the opposite and is interfered with the other part of the electromagnetic field. The wide-band antenna array for execution of the mentioned mode has an excitation system on n outputs and connected with it a radiating aperture fulfilled out of n horn oscillators with tone-modulated electromagnetic wave.

EFFECT: increases coefficient of efficiency.

4 cl, 7 dwg

FIELD: antenna engineering, possible usage as receiving antennas in radio broadcasting, radio communications and radio direction finding.

SUBSTANCE: antennas consist of working electrode, connected to input of antenna amplifier, isolated compensating electrode, connected to additional output of amplifier and positioned between working electrode and counterweight. On compensating electrode, signal transfer coefficient close to one in terms of voltage is provided for relatively to working electrode. Various elements of surface shape may be used as working electrode. Antenna array consists of N≥1 pairs, working electrodes of which are connected to inputs of amplifiers, and compensating electrodes - in crisscross manner and mutually are connected to additional outputs of amplifiers of pair. On these outputs, signal transfer coefficient by voltage relatively to working electrode close to one is enforced.

EFFECT: high frequency receipt mode, high efficiency of antenna array.

3 cl, 5 dwg

FIELD: microwave radio engineering; radar frequency-controlled antennas.

SUBSTANCE: proposed antenna is made in the form of flat array of linear radiators connected to power splitter in the form of sine-wave configured line. Components coupling power splitter with linear radiators are divided at antenna input into two groups so that longitudinal axis incorporating all even-numbered coupling members is offset relative to axis incorporating all odd-numbered coupling members by integer odd number of quarter-wavelengths in sine-wave line of power splitter. Phase mismatch occurring in this case is compensated for by respective difference in input section lengths of even- and odd-numbered linear radiators.

EFFECT: reduced space requirement, improved matching and performance characteristics of antenna and radar as a whole.

2 cl, 2 dwg

FIELD: microband microwave arrays for use in radars, microwave imagers, medical apparatuses, information receiving and transmitting systems.

SUBSTANCE: the radiators are positioned in the points of the hexagonal grid with a horizontal pitch determined by the required band of absence of the combination lobes in the directivity pattern, antiphase exciting elements of orthogonal linear polarizations are connected to the plate in antiphase on the orthogonal diagonals of the square.

EFFECT: reduced level cross-polarized components of the signal induced at polarizationally orthogonal outputs of the array for the band of electronic scanning exceeding +-45 deg.

3 dwg

FIELD: microband microwave arrays for use in radars, microwave imagers, medical apparatuses, information receiving and transmitting systems.

SUBSTANCE: the radiators are positioned in the points of the hexagonal grid with a horizontal pitch determined by the required band of absence of the combination lobes in the directivity pattern, antiphase exciting elements of orthogonal linear polarizations are connected to the plate in antiphase on the orthogonal diagonals of the square.

EFFECT: reduced level cross-polarized components of the signal induced at polarizationally orthogonal outputs of the array for the band of electronic scanning exceeding +-45 deg.

3 dwg

FIELD: microwave radio engineering; radar frequency-controlled antennas.

SUBSTANCE: proposed antenna is made in the form of flat array of linear radiators connected to power splitter in the form of sine-wave configured line. Components coupling power splitter with linear radiators are divided at antenna input into two groups so that longitudinal axis incorporating all even-numbered coupling members is offset relative to axis incorporating all odd-numbered coupling members by integer odd number of quarter-wavelengths in sine-wave line of power splitter. Phase mismatch occurring in this case is compensated for by respective difference in input section lengths of even- and odd-numbered linear radiators.

EFFECT: reduced space requirement, improved matching and performance characteristics of antenna and radar as a whole.

2 cl, 2 dwg

FIELD: antenna engineering, possible usage as receiving antennas in radio broadcasting, radio communications and radio direction finding.

SUBSTANCE: antennas consist of working electrode, connected to input of antenna amplifier, isolated compensating electrode, connected to additional output of amplifier and positioned between working electrode and counterweight. On compensating electrode, signal transfer coefficient close to one in terms of voltage is provided for relatively to working electrode. Various elements of surface shape may be used as working electrode. Antenna array consists of N≥1 pairs, working electrodes of which are connected to inputs of amplifiers, and compensating electrodes - in crisscross manner and mutually are connected to additional outputs of amplifiers of pair. On these outputs, signal transfer coefficient by voltage relatively to working electrode close to one is enforced.

EFFECT: high frequency receipt mode, high efficiency of antenna array.

3 cl, 5 dwg

FIELD: the invention refers to the field of radio technique namely to antenna technique.

SUBSTANCE: it may be used at designing antenna arrays for communication systems, location and electronic warfare. The technical result is in increasing the coefficient of efficiency of an antenna, range of action and efficiency of a radio system due to providing possibility of excitation of electromagnetic field in the shape of a bi -polar ultra short impulse signal that increases directivity of an antenna array. According to the proposed technical solutions an informative signal is transformed into an electromagnetic field in transmission lines and received electromagnetic field is divided along n horn oscillators with a tone-modulated electro magnetic wave antenna array. After division of the electromagnetic field along horn oscillators one part of the unipolar monoimpulse electromagnetic field is delayed in time for the half of the duration of the informative signal, the phase of this part of the electromagnetic field is transformed on the opposite and is interfered with the other part of the electromagnetic field. The wide-band antenna array for execution of the mentioned mode has an excitation system on n outputs and connected with it a radiating aperture fulfilled out of n horn oscillators with tone-modulated electromagnetic wave.

EFFECT: increases coefficient of efficiency.

4 cl, 7 dwg

FIELD: radio engineering; radio direction finding and radio communication systems.

SUBSTANCE: proposed highly directive annular phased antenna array has N identical nondirectional antennas, N-channel controlled phase shifter, and adder. Array antennas are equidistantly disposed over circumference with radius R0 affording short admissible width of synthesized directivity pattern main lobe at maximal operating-band wavelength and at equal angular pitch relative to array center. Number of antennas is chosen from formula N = 4l + 2, where l =1, 2, 3, ... are integer numbers other than zero. Distances chosen between array center and phase centers of antennas compared with radius R for array antennas bearing odd sequence numbers are enhanced and for array antennas bearing even sequence numbers, reduced.

EFFECT: reduced level of synthesized directivity pattern side lobes, in average twice as broad operating band of antenna array.

1 cl, 30 dwg, 2 tbl

FIELD: short-range radio communication and radar systems.

SUBSTANCE: proposed method includes storage of electric field potential by means of storage capacitor, avalanche discharge of storage capacitor, reception and radiation of electromagnetic wave by means of receiving-radiating element, concurrent generation, transmission, and radiation of pulsed signals. Electric field potential is stored by storage capacitor simultaneously with its storage at receiver input from current waves formed by pulses of receiving electromagnetic wave across two separated conductors of transceiving element; avalanche discharge of storage capacitor is conducted simultaneously with generation of current waves in same conductors producing radiated electromagnetic wave pulse. Device implementing proposed method has sawtooth current pulse generator connected to storage capacitor, avalanche diode, receiving-radiating element, and receiver. Receiving-radiating element is made in the form of two separated conductors shorted out on one end; they are series-connected with avalanche diode and storage capacitor at input and parallel-connected with receiver input through controlled limiter.

EFFECT: enhanced antenna efficiency and gain, as well as noise immunity, reduced power loss.

4 cl, 2 dwg

FIELD: antenna engineering.

SUBSTANCE: proposed device has radio-transparent insulating layer and helical components forming lattice structure which are equally spaced apart therein. Axes of all helical components are positioned unidirectionally and lie in insulating layer plane; axis and ends of each helical component form plane perpendicular to direction of reflected wave propagation. Each helical component has following characteristics: Nt turns and helix pitch angle α found from formula where α is angle of helix pitch angle; Nt is turn number of helical component. Length of conductor forming helical component equals half the length of electromagnetic wave.

EFFECT: ability of transforming linearly polarized electromagnetic wave into circularly polarized wave irrespective of plane position of incident linearly polarized electromagnetic wave at desired direction of incident wave propagation.

3 cl, 4 dwg

FIELD: microwave radio engineering, route surveillance radars.

SUBSTANCE: proposed antenna arrangement incorporating power splitters and array of waveguide-slot stripline radiators (strips) has its power splitter disposed in plane parallel to that incorporating strips; it is made in the form of E-plane folded serpentine waveguide that has coupling members with strips. Power splitter longitudinal axes incorporating even- and odd-numbered coupling members with strips are spaced apart through integer odd number of quarter-wavelength in power splitter waveguide. Power splitter waveguide line section between adjacent coupling members is twice bent through 180 deg. and its length is chosen to be a multiple of integer odd number of half-waves in power splitter waveguide. Even- and odd-numbered strips are different in length. Half-wave phasing section affording phase shift required for matching even- and odd-numbered outputs of power splitter is inserted in input section of each strip by changing size of strip waveguide wide wall.

EFFECT: reduced level of side lobes, standing-wave voltage ratio at normal-frequency power splitter input, enhanced amplifier gain, directive gain, and antenna sheet surface utilization factor.

4 cl, 3 dwg

FIELD: microwave radio engineering; radars.

SUBSTANCE: proposed antenna array incorporating power splitters and array of waveguide-slot stripline radiators (strips) has its power splitter made in the form of two boards; it has slow-wave structure in the form of E-plane folded serpentine waveguide and members providing coupling with strips. Coupling members are essentially coupling windows and matching projections. Coupling windows are made in waveguide narrow wall of one power splitter plate and matching projections, against coupling members on other waveguide narrow wall of other power splitter plate. Power splitter longitudinal axes incorporating even- and odd-numbered strip coupling members are spaced apart through integer number of quarter-wavelengths in power splitter waveguide. Each strip is essentially rectangular waveguide whose narrow wall has alternately inclined slots. Even-numbered strips have their slots inclined in specular direction relative to that of odd-numbered strip slots and difference in lengths of even- and odd-numbered strips equals amount of displacement of power splitter longitudinal axes.

EFFECT: reduced side-lobe level and standing-wave voltage ratio at normal-frequency power splitter input, amplifier gain, directive gain, and antenna sheet utilization factor.

6 cl, 2 dwg

FIELD: physics.

SUBSTANCE: invention refers to antenna engineering and can be used for production, at manufacturing plants, of dipole, phased or digital arrays (A) for signal reception/transfer within VHF range with various polarisation within wide single-beam scanning sector, that is in production period and cost, less by a factor of ten than production of conventional large-dimensioned arrays. The invention consists in that design of ready-to-operate array includes carrying submodule trusses whereon are fixed and galvanic ally coupled in either square or orthogonal curtain the identical prefabricated antenna modules representing vibrator arrays of coherent parameters, with orthogonal arms (cross-vibrators) inclined at an angle 45° to screen plane of single standard dimension-type, with arm length of horizontally polarised vibrator Lhor=0.463λo and vertically polarised vibrator Lvert. = 0.452λo, their height being equal h=0.226λo over conducting screen. Cross-vibrators are placed in array curtain along triangular mesh in the form of isosceles triangles with angularly placed vibrators, coordinate distances between their columns being dx=0.45λo and between their lines dy=0.32λo. Array is calibrated by experiment-calculated method with scattering matrix evaluation and VSWR calculation within its small fragment from 37 cross-vibrators of adjustable dimensions for fine adjustment until optimum dimension-type of required VSWR is attained. To provide ready-to-assembly array in-site in short terms, fit-up and adjustment of array curtain is carried out at a manufacturing plant.

EFFECT: extended scanning sector with matching of completely built-up array within whole scan sector up to ±60° at considerably reduced of time of array calibration and its setting into operation.

5 cl, 4 dwg

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