Ring single-wave vibrator

FIELD: radio engineering, communication.

SUBSTANCE: in the plane of the wave polarization, blades made of thin metal tape are set from the outer and inner sides of the ring single-wave vibrator. In the node of the standing wave of the electric field at the exit of the ring vibrator in the plane of the wave polarization, one blade from a thin metal tape is set from the outer sides of the ring single-wave vibrator, and the ring single-wave vibrator is tuned to the impedance of the coaxial cable connected thereto by changing the distance between the inner blades from the thin metal tape placed in antinodes of the standing wave of the electric field of the ring single-wave vibrator.

EFFECT: increasing the electric field strength at the receiving point and expanding the passband in the antinodes of the standing wave of the electric ring vibrator field.

4 dwg

 



 

Same patents:

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to broadband two-polarisation antenna intended to be used as a separate device or as part of phased antenna arrays. The antenna design creates an orthogonal basis, which allows emission of electromagnetic waves with different types of polarisation. The antenna includes feeders, a conducting screen and an emitting element in the form of a four-beam star, which is located above it. Star beams are smoothly bent in the screen direction and connected with their apexes to the feeders. Smooth change of shape and height of the beams above the screen allows coordinating the feeders and free space in wide frequency range. The antenna has a simple design, small dimensions and weight.

EFFECT: good coordination of feeders.

1 dwg

Spiral antenna // 2530264

FIELD: radio engineering, communication.

SUBSTANCE: spiral antenna containing a combined spiral is added with a directivity pattern corrector made in the form of a metal cone installed coaxially with an antenna at the distance of 0.2 λ up in front of coils of a flat spiral; cone base has diameter of 0.2 λ up and apex angle of about 60°; vertex of the cone is directed to the spiral centre, and the cone itself is installed inside a hollow dielectric cylinder fixed on the central part of the flat spiral.

EFFECT: enlarging an antenna directivity pattern in the upper part of a working range.

1 dwg

FIELD: radio engineering, communication.

SUBSTANCE: cylindrical scanning, lateral radiation antenna comprises: a cylindrical waveguide formed by two (top and bottom) parallel metal discs; a dielectric cylinder which is a filling of the cylindrical waveguide and is capable of operating as a matching transformer between the cylindrical waveguide and free space, and as a beam-forming element; a rectangular array of radiators directed normally to the plane of the array, placed asymmetrically in the cylindrical waveguide; the plane of the array lies parallel to the base of the cylindrical waveguide; two metal cylinders respectively placed over the top and under the bottom discs and capable of operating as auxiliary cylindrical radiators which adjust the beam pattern in the elevation plane.

EFFECT: broader functional capabilities by providing full circular scanning.

7 cl, 10 dwg

FIELD: radio engineering, communications.

SUBSTANCE: method to manufacture a spiral antenna, in which flat tape straight or zigzag conductors of an antenna spiral are made according to the number of spiral turns from a flexible dielectric material with a low tangent of a loss angle according to the number of conductors, on the surface of each dielectric substrate the tape conductors are rigidly fixed, besides, substrates with attached conductors are collected in the packet by means of their application onto each other with different sides: a substrate with a conductor - a substrate without a conductor, and so that the conductors are opposite to each other, one end of the flat packet is rigidly fixed, the fixed end of the substrates packet is applied onto the side surface of a solid cylindrical object, the diameter of which is equal to two initial radii of the spiral, and the length is more than the width of substrates, a packet of substrates and conductors is screwed onto this object, the manufactured cylindrical packet of substrates and conductors is rigidly fixed, from the rigid cylindrical packet of substrates a cylindrical object is withdrawn, afterwards the inner ends of spiral conductors are connected galvanically with appropriate conductors of a feeder or a matching transformer.

EFFECT: reduced diameter of an antenna aperture and its increased amplification ratio.

2 cl, 4 dwg

FIELD: physics.

SUBSTANCE: dipole has symmetrically lying arms. Conductors of the arms lie on the edges of biconical figures. Each arm consists of several biconical figures. The biconical figures are connected to each other without forming an electric contact. A biconical figure is formed by rhombus-like sections. The planes of the rhombus-like sections divide circle of the arms into equal arcs.

EFFECT: smaller longitudinal linear dimensions and wider operating bandwidth.

3 cl, 4 dwg

FIELD: physics.

SUBSTANCE: flat current-conducting antenna component is in form of isosceles triangles with angles at their common vertex, respectively, Θ1°≈127° and height and Θ2°≈117°, distances h2=0.85*h1, h3=0.85 *h2 and so on, are measured from the base of the triangles to the vertex of the antenna component; parallel to the bases of the triangles in accordance with the measured distances h, slits of width S1 and S2=0.85S1 are respectively cut from left to right and from right to left up to the vertex of the antenna component; the ready antenna component with the slits is then folded into a cone by bringing together its equal sides with a wedge-like gap between them; the axis of the gap is directed orthogonal to the plane of shield of the counterweight for an end-fed antenna; the axes of the gaps of two identical cones are directed along a straight line for a centre-fed antenna.

EFFECT: providing ultrabandwidth of linearly polarised antennae by cutting off conduction current on conductors of end-fed and centre-fed linearly polarised antennae.

3 cl, 3 dwg

FIELD: physics.

SUBSTANCE: flat rings made from a current-conducting sheet are placed on the outer surface of a conical antenna component coaxially to said component. The inner edge of the rings is galvanically connected to the outer surface of the conical antenna component. For adjacent rings, the projection on the plane of the conical antenna component of the outer edge of the flat ring with the smaller diameter coincides with the projection of the inner edge of the flat ring with the larger diameter. Power is supplied through a coaxial line or a balanced pair line depending on the selection of the type of the antenna using existing methods, without the feeder antenna effect. The counter weight used for a monopole antenna is a conical component fitted with flat rings. The dipoles used for a dipole antenna are identical conical antenna components fitted with flat rings.

EFFECT: wider operating frequency band.

3 cl, 3 dwg

FIELD: radio engineering.

SUBSTANCE: in an antenna comprising an antenna curtain formed as a non-periodical curve filling the curtain space and consisting of joined non-crossing segments, according to the proposed invention, the segments of the antenna curtain are formed by Peano-Hilbert curves of the first, or third or fourth iteration, at the same time the area of antenna curtain filling is arranged as rectangular. The ratio of the antenna curtain filling area sides makes 4:1, the size of the single segment in the antenna curtain is arranged with the length from 1/3 to 1/10 of the wavelength depending on the share of the Peano-Hilbert curve in the form of the first or third or fourth iteration.

EFFECT: reduced dimension of an antenna, making it possible to control a pass band, to adapt an antenna shape for the specified dimensions, higher reliability of the antenna curtain protection against harmful environmental effects.

4 cl, 4 dwg

FIELD: radio engineering.

SUBSTANCE: method involves action of electromagnetic emission of additional transmitter with frequency f on accidental antenna emitting signal with frequency fc, analysis of frequencies of intermodulation products of accidental antenna emission; by means of measuring receiver unknown frequency fc of signal emitted by accidental antenna is determined; calculation is performed for minimum possible value of additional transmitter frequency: and maximum possible value of additional transmitter frequency: by means of sweep-frequency generator connected to additional transmitter frequency of external action on accidental antenna is changed within limits f∂.min. : f∂.max and by means of terminal device connected to measuring receiver levels of power flow density Π0 and Πi or of electric field intensity E0 and Ei are measured correspondingly at frequencies fc and fj of signals in measuring receiver location; relative levels of intermodulation products of accidental antenna emission are calculated according to formulae.

EFFECT: increase of accuracy and validity of results of determination of accidental antenna parametres pertaining to all channels of confidential information leakage which is possible in it.

2 dwg

FIELD: physics, radio.

SUBSTANCE: invention concerns radioelectronics and can be applied in design of flexible antennas for radio receiving and transmitting devices. According to the claimed method, antenna is manufactured to produce an effect of paper "Chinese finger" operation in the form of flexible radio receiving and transmitting rod encased in a housing of ductile non-stretchable material. Ductile non-stretchable housing encasing the rod is hollow. Housing base and top are rigidly connected to the rod ends. Lower antenna base is equipped with excessive/low pressure source driven by an electronic circuit, which pumps working agent and creates excessive/low pressure inside the housing to improve receiving and transmission properties of radio relay promptly due to antenna rod spreading to necessary length.

EFFECT: improved receiving and transmission properties and increased durability of compact antenna.

2 dwg

Multilevel antenna // 2253925

FIELD: antennae.

SUBSTANCE: appropriate emitting element has at least one multilevel structure formed by a set of alike geometric elements (polygons or polyhedrons), electromagnetically interconnected and grouped so that in antenna structure each of main components can be identified.

EFFECT: antennae operates at several frequencies concurrently, dimensions and mass are substantially decreased.

36 cl, 79 dwg

FIELD: midget antennas built to novel geometry of space-filling curves.

SUBSTANCE: proposed antenna has one of its parts made in the form of space-filling curve being defined as aperiodic curve of at least ten interconnected straight segments, length of each of them being shorter than one tenth of operating wavelength in free space; they are spatially disposed so that neither of adjacent and interconnected segments forms other, longer, straight segment nor crosses other segment; space-filling curve of antenna is of such property that its cell size is smaller than unity.

EFFECT: reduced size and resonant frequency, enhanced quality, bandpass, excitation resistance, and effectiveness of antenna.

23 cl, 25 dwg

FIELD: antenna engineering.

SUBSTANCE: hemispherical case of antenna element affording extended band of spiral antenna and its serviceability under impact of vibration loads and at temperatures ranging between -60 and +40 °C has wall thickness reducing from base to top and is manufactured by transfer molding method from epoxy molding material followed by making deepened pattern therein for disposing spiral radiator. Gradual variation of wall thickness from work zone in high-frequency band to that in low-frequency band ensures low VSWR level of broadband spiral antenna.

EFFECT: facilitated manufacture, ability of producing identical antenna elements.

3 cl, 2 dwg

FIELD: new family of ground planes for reduced-size antennas.

SUBSTANCE: proposed antenna assembly has one or more current-carrying parts functioning as radiating components and multilevel or space-filling ground plane. The latter has definite structure influencing antenna frequency characteristics. Ground plane can be made of smaller size compared with antenna reflecting components.

EFFECT: ability of controlling reflection loss level, passband, and gain.

42 cl, 22 dwg

Antenna // 2319259

FIELD: designing small-size antennas for receiving and transmitting ultra-broadband signals of miscellaneous radio systems.

SUBSTANCE: proposed antenna has bifilar helix with opposing turns disposed in one plane, internal ends of turns functioning as antenna excitation points; and two antenna elements connected to external ends of turns and disposed in spiral plane; current radius of each turn of helix is determined by mathematical expression given in formula. Each antenna element is made in the form of comb structure with rounded-off tops of crests and rounded-off cavities between crests; tops of crests of one of antenna elements are opposing those of other antenna element and crest foots of each antenna element are integrated; helix turns are connected to respective feet of respective antenna-element crests.

EFFECT: enlarged functional capabilities, improved performance characteristics.

4 cl, 5 dwg

Balloon antenna // 2320058

FIELD: very-long-, long-, and medium-wave communication lines.

SUBSTANCE: proposed balloon antenna has balloon and cable rope joined together through insulator; antenna is provided with additional umbrella-type capacitive load made in the form of three or more electrical conductors, each being connected through top end to cable-to-insulator junction point and through bottom end, to anchor-grounded guy. This antenna is also provided with electric counter-poise in the form of three or more electrical conductors interconnected on one end and disposed so that they are radially diverging from junction point on ground surface; this junction point of counter-poise conductors functions as one of electrodes of antenna lead and bottom end of cable rope, as other electrode of this lead connecting antenna to radio-transmitting device.

EFFECT: reduced lifting height of cable rope au same radiation power and communication range.

1 cl, 2 dwg

FIELD: physics, radio.

SUBSTANCE: invention concerns radioelectronics and can be applied in design of flexible antennas for radio receiving and transmitting devices. According to the claimed method, antenna is manufactured to produce an effect of paper "Chinese finger" operation in the form of flexible radio receiving and transmitting rod encased in a housing of ductile non-stretchable material. Ductile non-stretchable housing encasing the rod is hollow. Housing base and top are rigidly connected to the rod ends. Lower antenna base is equipped with excessive/low pressure source driven by an electronic circuit, which pumps working agent and creates excessive/low pressure inside the housing to improve receiving and transmission properties of radio relay promptly due to antenna rod spreading to necessary length.

EFFECT: improved receiving and transmission properties and increased durability of compact antenna.

2 dwg

FIELD: radio engineering.

SUBSTANCE: method involves action of electromagnetic emission of additional transmitter with frequency f on accidental antenna emitting signal with frequency fc, analysis of frequencies of intermodulation products of accidental antenna emission; by means of measuring receiver unknown frequency fc of signal emitted by accidental antenna is determined; calculation is performed for minimum possible value of additional transmitter frequency: and maximum possible value of additional transmitter frequency: by means of sweep-frequency generator connected to additional transmitter frequency of external action on accidental antenna is changed within limits f∂.min. : f∂.max and by means of terminal device connected to measuring receiver levels of power flow density Π0 and Πi or of electric field intensity E0 and Ei are measured correspondingly at frequencies fc and fj of signals in measuring receiver location; relative levels of intermodulation products of accidental antenna emission are calculated according to formulae.

EFFECT: increase of accuracy and validity of results of determination of accidental antenna parametres pertaining to all channels of confidential information leakage which is possible in it.

2 dwg

FIELD: radio engineering.

SUBSTANCE: in an antenna comprising an antenna curtain formed as a non-periodical curve filling the curtain space and consisting of joined non-crossing segments, according to the proposed invention, the segments of the antenna curtain are formed by Peano-Hilbert curves of the first, or third or fourth iteration, at the same time the area of antenna curtain filling is arranged as rectangular. The ratio of the antenna curtain filling area sides makes 4:1, the size of the single segment in the antenna curtain is arranged with the length from 1/3 to 1/10 of the wavelength depending on the share of the Peano-Hilbert curve in the form of the first or third or fourth iteration.

EFFECT: reduced dimension of an antenna, making it possible to control a pass band, to adapt an antenna shape for the specified dimensions, higher reliability of the antenna curtain protection against harmful environmental effects.

4 cl, 4 dwg

FIELD: physics.

SUBSTANCE: flat rings made from a current-conducting sheet are placed on the outer surface of a conical antenna component coaxially to said component. The inner edge of the rings is galvanically connected to the outer surface of the conical antenna component. For adjacent rings, the projection on the plane of the conical antenna component of the outer edge of the flat ring with the smaller diameter coincides with the projection of the inner edge of the flat ring with the larger diameter. Power is supplied through a coaxial line or a balanced pair line depending on the selection of the type of the antenna using existing methods, without the feeder antenna effect. The counter weight used for a monopole antenna is a conical component fitted with flat rings. The dipoles used for a dipole antenna are identical conical antenna components fitted with flat rings.

EFFECT: wider operating frequency band.

3 cl, 3 dwg

Up!