Multi-beam antenna

FIELD: antenna technology.

SUBSTANCE: invention relates to telecommunication multi-beam antenna systems with a focal device consisting of a two-dimensional array of irradiators, in which a plurality of beams are simultaneously generated by setting the amplitude-time parameters of the signals for each illuminator. Multi-beam antenna, in which the focusing device in the form of amplifying lens (6) is irradiated by irradiating device (1), which is designed as two-dimensional array of irradiators (2). System of beam formation for each active beam forms, with the help of a certain subarray of irradiators, nonplanar wave front (5b) equidistant to plane wave front (5a) in a given beam direction. In this case, the radiating surface of the array of irradiators is outside self-intersection zone of nonplanar wave fronts (5d), and refractive surface (9) of the amplifying lens has a continuous second derivative. In this case, the refractive surface of the lens can be a surface of revolution, with an axis of rotation that does not coincide in angle and (or) position with the axes of the amplifying lens and (or) the irradiating device. In addition, the refractive surface can be formed by drawing one, in a generally variable, curve along the other guiding curve.

EFFECT: technical result consists in providing the possibility of obtaining a large number of active rays.

4 cl, 4 dwg

 



 

Same patents:

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to antenna engineering. A shared source antenna for simultaneous generation of multiple of beams comprises multiple elementary sources spaced apart by a constant interval (P) and a parabolic reflector, wherein the elementary sources are combined into a number of identical subarrays, each subarray comprising a number of peripheral elementary sources and a central elementary source, wherein each subarray is designed for beam synthesis and has a single excitation source, wherein elementary sources of each subarray are connected to each other on phase through electromagnetic radiation of the central elementary source to peripheral elementary sources, and two series subarrays comprise at least one common elementary source and are offset by a distance which corresponds to a predefined number of intervals (P), which is greater than or equal to one.

EFFECT: enabling formation of a large number of narrow beams.

7 cl, 9 dwg

FIELD: radio engineering.

SUBSTANCE: invention relates to microstrip antennae and particularly to a double-frequency microstrip antenna for use in global navigation satellite systems (GNSS). The structure of the double-frequency microstrip antenna includes: a conducting shield and an inner radiating plate and an outer radiating plate, lying opposite said shield. The inner plate is in form of a metal-coated disc with a set of protrusions on its periphery, and the outer plate is in form of a metal-coated ring with a corresponding set of protrusions on its inner side, wherein the corresponding protrusions of the inner plate lie in grooves formed by corresponding protrusions of the outer plate and vice versa. There are vertical conducting elements in the protrusions of the inner plate which galvanically connect the outer plate to said conducting shield. Between the shield and the outer plate on its outer periphery, there is a dielectric filling or capacitive elements.

EFFECT: wider operating frequency band, low level of the beam pattern in the backward semi-sphere and shorter length of the antenna.

18 cl, 13 dwg

FIELD: radio engineering.

SUBSTANCE: the following actions are performed: there confirmed is a size of constriction area of ray-optical field that is the sum of ray-optical beams reflected from collimating surface with radiator aperture; there set is a single-beam character of ray-optical field with simultaneous approaching of ray-optical beams distribution density in the area of confirmation to Gauss distribution; the number of slanting beams in radiator is minimised at its excitation from collimating surface by minimising the distance from radiator main section surface to deflection plain of random ray-optical beam.

EFFECT: increase of antenna directivity factor for each of partial beams and isolation value between partial beams.

6 dwg

FIELD: radio engineering.

SUBSTANCE: antenna array (AR) with one or several reflectors, including: array (RS), made of at least two sources (S1-S5) of radiation, of which one is central, source (S1) is arranged and positioned to radiate and/or receive beams of electromagnetic waves (F1-F5) in selected directions, facilities of beams generation, at least one reflector (RC), having surface (SU), which may reflect beams of radiation generated by specified sources, and/or intended for these sources, and generated in a three-dimensional manner in order to provide for reflection of radiation beam, which is generated by each source (S1-S5) of radiation, scattering its energy in order to cover selected zone related to it, so that the main tab of pattern of radiation directivity related to central source (S1) identifies so called primary coverage (CP), which integrally covers each zone of active coverage (ZC1, ZC2) of antenna (AR) with selected shape and size, and so that the main tab of radiation directivity pattern related to each non-central source of radiation (S2-S5) covers at least partially specified primary coat (CP).

EFFECT: improved accuracy of information transfer.

8 cl, 2 dwg

FIELD: radio engineering.

SUBSTANCE: radiolocating reflector, comprising reciprocal double-channel antenna of full polarisation reception of signal transfer, is equipped with the first and second circulators and bidirectional phase changer. Outlet of the first channel of antenna is connected to the first inlet of the first circulator, the second outlet of the first circulator is connected to inlet of bidirectional phase changer. Outlet of bidirectional phase changer is connected to the first inlet of the second circulator. Outlet of the second channel of antenna is connected to the second inlet of the second circulator, and the third outlet of the first circulator is connected to the third outlet of the second circulator.

EFFECT: possibility to use in unattended mode and simplification.

1 dwg

Mirror antenna // 2359375

FIELD: physics, radio.

SUBSTANCE: invention is related to the field of radio engineering, namely, to devices for reception and transmission of electromagnet energy. Antenna comprises semispherical mirror reflector (5), main radiator (MR) in the form of two pairs of linear antenna arrays (1-4) and additional radiator (AR) in the form of two pairs of single (6-9) radiators. MR is installed in maximum of semispherical mirror field focusing in vicinity of paraxial focus. First pair (7, 8) of AR single radiators is installed in front of mirror reflector. Second pair (6, 9) of single radiators is installed in plane that is perpendicular to plane, in which radiators of the first pair are installed, and their apertures are distanced from mirror by distance λ/2 (where λ is wave length in free space). Linear antenna arrays (1-4) are connected pairwise on symmetrical (10, 11) power dividers (PD) of the first order MR, PD outlets of every pair of antenna arrays via phase changer (12, 13) and attenuator (14, 15) are connected to inlets of symmetric (16) PD of the second order MR, outlet of which is connected to the first inlet of nonsymmetrical (28) PD. Outlets (6-9) of single radiators via phase changers (17-20) and attenuators (21-24) are connected to inlets of symmetrical (25, 26) PD of the first order of AR, outlets of which are connected to inlets of symmetric (27) PD of the second order of AR, outlet of which is connected to the second inlet of nonsymmetrical (28) PD with division factor of 0.3/0.7.

EFFECT: increased coefficient of antenna amplification and noise immunity of radiolocating station.

4 dwg

FIELD: antenna engineering.

SUBSTANCE: broadband zigzag antenna includes incomplete zigzag vibrator composed of two identical open triangular frames. The frames are positioned in vertical plane one above another. Each triangular frame of the incomplete zigzag vibrator is additionally equipped with two identical closed triangular frames. These closed triangular frames have common base. This common base coincides with the base of triangular frames of said incomplete vibrator. Sides of the closed triangular frames are equal to sides of open triangular frames. Being closed by pairs said triangular frames form a rhomb in horizontal plane. These rhombs play the role of capacitive loads.

EFFECT: creation of broadband electrical monoantenna with inalterable double-sided pattern in horizontal plane in the range of operating frequencies for receiving and transmitting linearly polarized electromagnetic waves.

7 dwg

Antenna assembly // 2281591

FIELD: antenna engineering; television, corporate, departmental, and radiophone public communication systems.

SUBSTANCE: proposed antenna assembly has two simultaneously operating electric dipoles inclined through angle of up to 15 - 20 deg. to rear wall of reflector. The latter is made in the form of cylindrical surface with lengthwise cut generating part. Electric dipoles are disposed in vertical symmetry plane (E plane) in immediate proximity of reflector rear wall symmetrically relative to horizontal symmetry plane (H plane).

EFFECT: reduced size of antenna toward radiation; extended operating band when using more broadband excitation sources.

1 cl, 2 dwg

Radar reflector // 2225059
The invention relates to radar systems and can be used as a radar beacon

The invention relates to devices for reception, transmission of electromagnetic energy based on the two-mirror optical systems using specular reflectors, parabolic, hyperbolic or spherical shape

Antenna assembly // 2281591

FIELD: antenna engineering; television, corporate, departmental, and radiophone public communication systems.

SUBSTANCE: proposed antenna assembly has two simultaneously operating electric dipoles inclined through angle of up to 15 - 20 deg. to rear wall of reflector. The latter is made in the form of cylindrical surface with lengthwise cut generating part. Electric dipoles are disposed in vertical symmetry plane (E plane) in immediate proximity of reflector rear wall symmetrically relative to horizontal symmetry plane (H plane).

EFFECT: reduced size of antenna toward radiation; extended operating band when using more broadband excitation sources.

1 cl, 2 dwg

FIELD: antenna engineering.

SUBSTANCE: broadband zigzag antenna includes incomplete zigzag vibrator composed of two identical open triangular frames. The frames are positioned in vertical plane one above another. Each triangular frame of the incomplete zigzag vibrator is additionally equipped with two identical closed triangular frames. These closed triangular frames have common base. This common base coincides with the base of triangular frames of said incomplete vibrator. Sides of the closed triangular frames are equal to sides of open triangular frames. Being closed by pairs said triangular frames form a rhomb in horizontal plane. These rhombs play the role of capacitive loads.

EFFECT: creation of broadband electrical monoantenna with inalterable double-sided pattern in horizontal plane in the range of operating frequencies for receiving and transmitting linearly polarized electromagnetic waves.

7 dwg

Mirror antenna // 2359375

FIELD: physics, radio.

SUBSTANCE: invention is related to the field of radio engineering, namely, to devices for reception and transmission of electromagnet energy. Antenna comprises semispherical mirror reflector (5), main radiator (MR) in the form of two pairs of linear antenna arrays (1-4) and additional radiator (AR) in the form of two pairs of single (6-9) radiators. MR is installed in maximum of semispherical mirror field focusing in vicinity of paraxial focus. First pair (7, 8) of AR single radiators is installed in front of mirror reflector. Second pair (6, 9) of single radiators is installed in plane that is perpendicular to plane, in which radiators of the first pair are installed, and their apertures are distanced from mirror by distance λ/2 (where λ is wave length in free space). Linear antenna arrays (1-4) are connected pairwise on symmetrical (10, 11) power dividers (PD) of the first order MR, PD outlets of every pair of antenna arrays via phase changer (12, 13) and attenuator (14, 15) are connected to inlets of symmetric (16) PD of the second order MR, outlet of which is connected to the first inlet of nonsymmetrical (28) PD. Outlets (6-9) of single radiators via phase changers (17-20) and attenuators (21-24) are connected to inlets of symmetrical (25, 26) PD of the first order of AR, outlets of which are connected to inlets of symmetric (27) PD of the second order of AR, outlet of which is connected to the second inlet of nonsymmetrical (28) PD with division factor of 0.3/0.7.

EFFECT: increased coefficient of antenna amplification and noise immunity of radiolocating station.

4 dwg

FIELD: radio engineering.

SUBSTANCE: radiolocating reflector, comprising reciprocal double-channel antenna of full polarisation reception of signal transfer, is equipped with the first and second circulators and bidirectional phase changer. Outlet of the first channel of antenna is connected to the first inlet of the first circulator, the second outlet of the first circulator is connected to inlet of bidirectional phase changer. Outlet of bidirectional phase changer is connected to the first inlet of the second circulator. Outlet of the second channel of antenna is connected to the second inlet of the second circulator, and the third outlet of the first circulator is connected to the third outlet of the second circulator.

EFFECT: possibility to use in unattended mode and simplification.

1 dwg

FIELD: radio engineering.

SUBSTANCE: antenna array (AR) with one or several reflectors, including: array (RS), made of at least two sources (S1-S5) of radiation, of which one is central, source (S1) is arranged and positioned to radiate and/or receive beams of electromagnetic waves (F1-F5) in selected directions, facilities of beams generation, at least one reflector (RC), having surface (SU), which may reflect beams of radiation generated by specified sources, and/or intended for these sources, and generated in a three-dimensional manner in order to provide for reflection of radiation beam, which is generated by each source (S1-S5) of radiation, scattering its energy in order to cover selected zone related to it, so that the main tab of pattern of radiation directivity related to central source (S1) identifies so called primary coverage (CP), which integrally covers each zone of active coverage (ZC1, ZC2) of antenna (AR) with selected shape and size, and so that the main tab of radiation directivity pattern related to each non-central source of radiation (S2-S5) covers at least partially specified primary coat (CP).

EFFECT: improved accuracy of information transfer.

8 cl, 2 dwg

FIELD: radio engineering.

SUBSTANCE: the following actions are performed: there confirmed is a size of constriction area of ray-optical field that is the sum of ray-optical beams reflected from collimating surface with radiator aperture; there set is a single-beam character of ray-optical field with simultaneous approaching of ray-optical beams distribution density in the area of confirmation to Gauss distribution; the number of slanting beams in radiator is minimised at its excitation from collimating surface by minimising the distance from radiator main section surface to deflection plain of random ray-optical beam.

EFFECT: increase of antenna directivity factor for each of partial beams and isolation value between partial beams.

6 dwg

FIELD: radio engineering.

SUBSTANCE: invention relates to microstrip antennae and particularly to a double-frequency microstrip antenna for use in global navigation satellite systems (GNSS). The structure of the double-frequency microstrip antenna includes: a conducting shield and an inner radiating plate and an outer radiating plate, lying opposite said shield. The inner plate is in form of a metal-coated disc with a set of protrusions on its periphery, and the outer plate is in form of a metal-coated ring with a corresponding set of protrusions on its inner side, wherein the corresponding protrusions of the inner plate lie in grooves formed by corresponding protrusions of the outer plate and vice versa. There are vertical conducting elements in the protrusions of the inner plate which galvanically connect the outer plate to said conducting shield. Between the shield and the outer plate on its outer periphery, there is a dielectric filling or capacitive elements.

EFFECT: wider operating frequency band, low level of the beam pattern in the backward semi-sphere and shorter length of the antenna.

18 cl, 13 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to antenna engineering. A shared source antenna for simultaneous generation of multiple of beams comprises multiple elementary sources spaced apart by a constant interval (P) and a parabolic reflector, wherein the elementary sources are combined into a number of identical subarrays, each subarray comprising a number of peripheral elementary sources and a central elementary source, wherein each subarray is designed for beam synthesis and has a single excitation source, wherein elementary sources of each subarray are connected to each other on phase through electromagnetic radiation of the central elementary source to peripheral elementary sources, and two series subarrays comprise at least one common elementary source and are offset by a distance which corresponds to a predefined number of intervals (P), which is greater than or equal to one.

EFFECT: enabling formation of a large number of narrow beams.

7 cl, 9 dwg

Multi-beam antenna // 2642512

FIELD: antenna technology.

SUBSTANCE: invention relates to telecommunication multi-beam antenna systems with a focal device consisting of a two-dimensional array of irradiators, in which a plurality of beams are simultaneously generated by setting the amplitude-time parameters of the signals for each illuminator. Multi-beam antenna, in which the focusing device in the form of amplifying lens (6) is irradiated by irradiating device (1), which is designed as two-dimensional array of irradiators (2). System of beam formation for each active beam forms, with the help of a certain subarray of irradiators, nonplanar wave front (5b) equidistant to plane wave front (5a) in a given beam direction. In this case, the radiating surface of the array of irradiators is outside self-intersection zone of nonplanar wave fronts (5d), and refractive surface (9) of the amplifying lens has a continuous second derivative. In this case, the refractive surface of the lens can be a surface of revolution, with an axis of rotation that does not coincide in angle and (or) position with the axes of the amplifying lens and (or) the irradiating device. In addition, the refractive surface can be formed by drawing one, in a generally variable, curve along the other guiding curve.

EFFECT: technical result consists in providing the possibility of obtaining a large number of active rays.

4 cl, 4 dwg

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