CN104617383A - Multi-beam scanning lens antenna - Google Patents
Multi-beam scanning lens antenna Download PDFInfo
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- CN104617383A CN104617383A CN201510035439.2A CN201510035439A CN104617383A CN 104617383 A CN104617383 A CN 104617383A CN 201510035439 A CN201510035439 A CN 201510035439A CN 104617383 A CN104617383 A CN 104617383A
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Abstract
The invention provides a multi-beam scanning lens antenna. The medium cylindrical lens is placed between two parallel plate waveguide parallel circular metal plate, the feed array by printing curved planar antenna array on the dielectric substrate, the feed array horizontally in round two the edge of the metal between the parallel plate waveguide with a feed array and between parallel circular metal plate four hex pillars fixed, since the antenna system uses spaced circular parallel plate waveguide structure to achieve a single-mode transmission, arc shaped feed array can be well combined with the circular parallel plate in the horizontal plane with good symmetry, reduces the volume of the pitch surface, and the process is simple, low cost, to achieve a balanced feeding dipoles, avoid adding additional reflector structure, planar microstrip Yagi antenna feed structure occupies less volume, can be well combined with the control circuit.
Description
Technical field
The present invention relates to Antenna Construction Design field, especially a kind of dielectric lens antenna.
Background technology
In field of radar, along with vehicle flight speeds and maneuverability improve day by day, radar system must measure the target of wide range, multiple batches of appearance fast accurately, require that antenna can form multiple received beam, realize following the tracks of fast, so multi-beam electronic scanning antenna is used widely.
Traditional multi-beam antenna comprises reflector antenna and phased array antenna, the shortcoming of these antenna is complex structure, sweep limits is limited, loss is large, working band is narrow etc., and multibeam lens antenna has good symmetry, remain good optical characteristics, and within the specific limits not to the stop of feed, scanning and the low-loss work of polarizers of big angle scope can be realized.
Current multibeam lens antenna adopts waveguide trumpet feed mostly, lens shape is mostly spherical or hemisphere, can realize multi-faceted beam scanning, the material of lens adopts the medium of graded dielectric constant to reach higher gain, but waveguide trumpet volume is large, not flexible, be unfavorable for that lens antenna system is integrated, the globe lens difficulty of processing of graded dielectric constant is large simultaneously, and cost is high, and be not easy to fix, limit the application of lens antenna.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of multi-beam scanning lens antenna, this antenna has low section, easily processing and fabricating, be easy to that the system integration is fixed, high efficiency, high-gain, low-loss, compact conformation, lightweight, feed structure is simple, horizontal plane covers wide-angle multi-beam scanning feature.
The technical solution adopted for the present invention to solve the technical problems is: by relative dielectric constant ε
rthe dielectric posts lens of≤4.4 are positioned between the parallel-plate waveguide of two pieces of circular metal parallel-plates formations, feed array adopts the arc-plane Yagi antenna array be printed on medium substrate, feed array is lain in a horizontal plane in the edge between two pieces of circular metal parallel-plate waveguides, fixes with four hexagonal copper posts between feed array and circular metal parallel-plate.
In its midplane yagi arrary row, the structure of each unit is identical, each unit is by a reflector, two directors and an active dipole composition, medium substrate is divided into the upper and lower, wherein reflector be medium substrate lower floor block ground plane, two directors are all the printed monopole of 0.47 λ, active dipole is the printed dipole of 0.5 λ, active dipole and director are then positioned at the upper strata of medium substrate, wherein active dipole 1 is connected by the parallel wire 13 that two width are identical, article two, the width of parallel wire 13 is identical with the width of active dipole 1, article two, the microstrip line 15 that parallel wire 13 is identical with two width respectively again connects, the microstrip line be wherein positioned at above is U-shaped bending fold, make length difference 1/2nd wavelength of two microstrip lines 15, article two, microstrip line 15 is connected to a microstrip line 3 for impedance matching jointly, the length of microstrip line 3 is 1/4th wavelength, microstrip line 3 is connected to the microstrip line 14 that an input impedance is 50 Ω, adopt coaxial 7 to connect microstrip line 14 and carry out feed.
The invention has the beneficial effects as follows because antenna system adopts the parallel circular plate waveguiding structure of a determining deviation, achieve single mode transport, arc feed array can combine with parallel circular plate very well, has good symmetry, decrease the volume in pitching face at horizontal plane; The constant post lens of dielectric constant can well be fixed in the middle of parallel-plate waveguide, and processing is simple, with low cost; Folding microstrip line construction introduces the phase shift (sweep two microstrip line length differences 1/2nd wavelength) of 180 °, and to realize differential mode excitation, what in fact play is the effect of a Ba Lun, achieves the balanced feeding of dipole; Replace the reflector of Yagi antenna with the ground plane blocked, play good reflex, avoid adding extra reflector structure; It is few that the Yagi antenna feed of planar microstrip structure takies volume, can well combine with control circuit.
Accompanying drawing explanation
Fig. 1 is plane Yagi antenna feed vertical view.
Fig. 2 is lens antenna vertical view.
Fig. 3 is lens antenna end view.
Wherein, 1-excitation oscillator in figure, 2-director, 3-impedance transformer, 4-Ba Lun, 5-ground plane (reflector), 6-dielectric layer, comprises the part that the face of being grounded is blocked, the internal and external conductor of 7-coaxial feed, 8-dielectric posts lens, the waveguide of 9-parallel circular plate, 10-feed oscillator and microstrip line, 11-hexagonal copper post, 12-circular arc feed array, 13-parallel wire, 14-impedance is the microstrip line of 50 Ω, and 15-microstrip line forms.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
The present invention is by relative dielectric constant ε
rthe dielectric posts lens of≤4.4 are positioned between the parallel-plate waveguide of two pieces of circular metal parallel-plates formations, feed array adopts the arc-plane Yagi antenna array be printed on medium substrate, feed array is lain in a horizontal plane in the edge between two pieces of circular metal parallel-plate waveguides, fixes with four hexagonal copper posts between feed array and circular metal parallel-plate.
In its midplane yagi arrary row, the structure of each unit is identical, each unit is by a reflector, two directors and an active dipole composition, medium substrate is divided into the upper and lower, wherein reflector be medium substrate lower floor block ground plane, two directors are all the printed monopole of 0.47 λ, active dipole is the printed dipole of 0.5 λ, active dipole and director are then positioned at the upper strata of medium substrate, wherein active dipole 1 is connected by the parallel wire 13 that two width are identical, article two, the width of parallel wire 13 is identical with the width of active dipole 1, article two, the microstrip line 15 that parallel wire 13 is identical with two width respectively again connects, the microstrip line be wherein positioned at above is U-shaped bending fold, make length difference 1/2nd wavelength of two microstrip lines 15, article two, microstrip line 15 is connected to a microstrip line 3 for impedance matching jointly, the length of microstrip line 3 is 1/4th wavelength, microstrip line 3 is connected to the microstrip line 14 that an input impedance is 50 Ω, adopt coaxial 7 to connect microstrip line 14 and carry out feed.
Referring to figs. 1 through Fig. 3, in the present invention, 1 is excitation oscillator, and 2 is director, 3 is impedance transformer, and 4 is Ba Lun, and 5 is ground plane (reflector), 6 is dielectric layer, comprises the part that the face of being grounded is blocked, and 7 is the internal and external conductor of coaxial feed, 8 is dielectric posts lens, and 9 is parallel circular plate waveguide, and 10 is feed oscillator and microstrip line, 11 is hexagonal copper post, and 12 is circular arc feed array, and 13 is parallel wire, 14 for impedance be the microstrip line of 50 Ω, 15 be microstrip line composition.
Embodiment: the diameter of parallel circular plate waveguide is 79.6mm, the length of excitation oscillator is 7mm, the length of director is 4.5mm, the dielectric constant of dielectric layer is 2.2, the dielectric constant of dielectric posts lens is 2.54, parallel circular plate waveguide spacing is 15mm, plane Yagi antenna length is 15.6mm, operating frequency is 18GHZ, circular arc array element spacing is 9 °, and the distance of circular arc array and dielectric posts lens is 4mm, adopts coaxial feed, the spherical wave sent by feed changes plane wave into after the refraction of lens, improves gain.This medium column lens antenna differs greatly with the bore of vertical direction in the horizontal direction, and the directional diagram therefore produced is fan-shaped beam, can realize narrow beam scanning, in pitching face, then produce wider wave beam in horizontal plane.
Performance index in this embodiment in lens antenna system are:
Operating frequency: 17.5GHz---18.5GHz
Input impedance: 50 Ω
Standing-wave ratio: <2
Antenna gain: 16.8dB---17.6dB
E face simple beam 3dB beamwidth: 9 °
H face simple beam 3dB beamwidth: 61.4 °
Antenna system beam scanning scope: ± 45 °
The foregoing is only a kind of embodiment of the present invention; for those of ordinary skills; within the spirit and principles in the present invention; can change the parameter of antenna according to the above description; and the technical scheme after all these changes, all should belong to the protection range of claims of the present invention.
Claims (1)
1. a multi-beam scanning lens antenna, is characterized in that:
By relative dielectric constant ε
rthe dielectric posts lens of≤4.4 are positioned between the parallel-plate waveguide of two pieces of circular metal parallel-plates formations, feed array adopts the arc-plane Yagi antenna array be printed on medium substrate, feed array is lain in a horizontal plane in the edge between two pieces of circular metal parallel-plate waveguides, fixes with four hexagonal copper posts between feed array and circular metal parallel-plate.
In its midplane yagi arrary row, the structure of each unit is identical, each unit is by a reflector, two directors and an active dipole composition, medium substrate is divided into the upper and lower, wherein reflector be medium substrate lower floor block ground plane, two directors are all the printed monopole of 0.47 λ, active dipole is the printed dipole of 0.5 λ, active dipole and director are then positioned at the upper strata of medium substrate, wherein active dipole (1) is connected by the parallel wire (13) that two width are identical, article two, the width of parallel wire (13) is identical with the width of active dipole (1), article two, the microstrip line (15) that parallel wire (13) is identical with two width respectively again connects, the microstrip line be wherein positioned at above is U-shaped bending fold, make length difference 1/2nd wavelength of two microstrip lines (15), article two, microstrip line (15) is connected to a microstrip line for impedance matching (3) jointly, the length of microstrip line (3) is 1/4th wavelength, microstrip line (3) is connected to the microstrip line (14) that an input impedance is 50 Ω, adopt coaxial (7) to connect microstrip line (14) and carry out feed.
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| CN201510035439.2A CN104617383A (en) | 2015-01-23 | 2015-01-23 | Multi-beam scanning lens antenna |
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| CN201510035439.2A CN104617383A (en) | 2015-01-23 | 2015-01-23 | Multi-beam scanning lens antenna |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406179A (en) * | 2015-11-06 | 2016-03-16 | 中国电子科技集团公司第三十八研究所 | High-gain end-fire conformal antenna |
| CN108767448A (en) * | 2018-06-08 | 2018-11-06 | 河南师范大学 | A kind of small size double frequency list feedback omnidirectional antenna |
| CN108780953A (en) * | 2015-08-05 | 2018-11-09 | 迈特斯因公司 | Array of spherical lenses based on multibeam antenna |
| CN109546354A (en) * | 2018-12-24 | 2019-03-29 | 南通大学 | A kind of magnetic dipole yagi aerial based on dielectric resonator |
| CN109546359A (en) * | 2018-12-06 | 2019-03-29 | 北京神舟博远科技有限公司 | A kind of directional diagram reconstructable phased array antenna system based on 3D printing |
| CN110176668A (en) * | 2019-05-22 | 2019-08-27 | 维沃移动通信有限公司 | Antenna element and electronic equipment |
| CN110247167A (en) * | 2019-05-30 | 2019-09-17 | 南通至晟微电子技术有限公司 | Millimeter-wave planar Quasi-Yagi antenna unit, array antenna and phased array antenna |
| WO2019227348A1 (en) * | 2018-05-30 | 2019-12-05 | 华为技术有限公司 | Lens antenna and wireless device |
| CN110729569A (en) * | 2019-10-25 | 2020-01-24 | 南通大学 | High-gain yagi antenna based on high-order mode and metamaterial of dielectric resonator |
| CN111082218A (en) * | 2019-12-16 | 2020-04-28 | 上海无线电设备研究所 | Common-aperture composite antenna unit and phased-array antenna |
| CN111541028A (en) * | 2020-05-14 | 2020-08-14 | 北京高信达通信科技股份有限公司 | Active antenna and manufacturing method |
| CN111641027A (en) * | 2020-04-29 | 2020-09-08 | 西安外事学院 | Leaky-wave edge-emitting array antenna based on parallel double lines |
| CN111755829A (en) * | 2020-05-29 | 2020-10-09 | 常熟市泓博通讯技术股份有限公司 | High gain antenna module |
| CN111864407A (en) * | 2019-04-25 | 2020-10-30 | 大唐移动通信设备有限公司 | Quasi-yagi antenna array and millimeter wave base station equipment |
| CN112002989A (en) * | 2020-08-27 | 2020-11-27 | 宁波大学 | On-chip antenna based on glass through hole array |
| CN112103669A (en) * | 2019-06-17 | 2020-12-18 | Oppo广东移动通信有限公司 | Lens antenna array and electronic equipment |
| CN112103662A (en) * | 2019-06-17 | 2020-12-18 | Oppo广东移动通信有限公司 | Lens antenna module and electronic equipment |
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| CN108780953B (en) * | 2015-08-05 | 2021-01-01 | 迈特斯因公司 | Antenna and method for adjusting coverage area of antenna |
| CN108780953A (en) * | 2015-08-05 | 2018-11-09 | 迈特斯因公司 | Array of spherical lenses based on multibeam antenna |
| CN105406179B (en) * | 2015-11-06 | 2018-08-21 | 中国电子科技集团公司第三十八研究所 | A kind of high-gain end-fire conformal antenna |
| CN105406179A (en) * | 2015-11-06 | 2016-03-16 | 中国电子科技集团公司第三十八研究所 | High-gain end-fire conformal antenna |
| WO2019227348A1 (en) * | 2018-05-30 | 2019-12-05 | 华为技术有限公司 | Lens antenna and wireless device |
| CN108767448A (en) * | 2018-06-08 | 2018-11-06 | 河南师范大学 | A kind of small size double frequency list feedback omnidirectional antenna |
| CN109546359A (en) * | 2018-12-06 | 2019-03-29 | 北京神舟博远科技有限公司 | A kind of directional diagram reconstructable phased array antenna system based on 3D printing |
| CN109546359B (en) * | 2018-12-06 | 2023-08-22 | 北京神舟博远科技有限公司 | Directional diagram reconfigurable phased array antenna system based on 3D printing |
| CN109546354A (en) * | 2018-12-24 | 2019-03-29 | 南通大学 | A kind of magnetic dipole yagi aerial based on dielectric resonator |
| CN109546354B (en) * | 2018-12-24 | 2021-04-16 | 南通大学 | Magnetic dipole yagi antenna based on dielectric resonator |
| CN111864407B (en) * | 2019-04-25 | 2021-08-27 | 大唐移动通信设备有限公司 | Quasi-yagi antenna array and millimeter wave base station equipment |
| CN111864407A (en) * | 2019-04-25 | 2020-10-30 | 大唐移动通信设备有限公司 | Quasi-yagi antenna array and millimeter wave base station equipment |
| US11769952B2 (en) | 2019-05-22 | 2023-09-26 | Vivo Mobile Communication Co., Ltd. | Antenna element and electronic device |
| CN110176668A (en) * | 2019-05-22 | 2019-08-27 | 维沃移动通信有限公司 | Antenna element and electronic equipment |
| CN110247167B (en) * | 2019-05-30 | 2024-05-24 | 南通至晟微电子技术有限公司 | Millimeter wave plane quasi-yagi antenna unit, array antenna and phased array antenna |
| CN110247167A (en) * | 2019-05-30 | 2019-09-17 | 南通至晟微电子技术有限公司 | Millimeter-wave planar Quasi-Yagi antenna unit, array antenna and phased array antenna |
| CN112103669A (en) * | 2019-06-17 | 2020-12-18 | Oppo广东移动通信有限公司 | Lens antenna array and electronic equipment |
| CN112103662A (en) * | 2019-06-17 | 2020-12-18 | Oppo广东移动通信有限公司 | Lens antenna module and electronic equipment |
| CN110729569A (en) * | 2019-10-25 | 2020-01-24 | 南通大学 | High-gain yagi antenna based on high-order mode and metamaterial of dielectric resonator |
| CN110729569B (en) * | 2019-10-25 | 2020-11-17 | 南通大学 | High-gain yagi antenna based on high-order mode and metamaterial of dielectric resonator |
| CN111082218A (en) * | 2019-12-16 | 2020-04-28 | 上海无线电设备研究所 | Common-aperture composite antenna unit and phased-array antenna |
| CN111641027B (en) * | 2020-04-29 | 2024-04-23 | 西安外事学院 | Leaky-wave side-emission array antenna based on parallel double lines |
| CN111641027A (en) * | 2020-04-29 | 2020-09-08 | 西安外事学院 | Leaky-wave edge-emitting array antenna based on parallel double lines |
| CN111541028A (en) * | 2020-05-14 | 2020-08-14 | 北京高信达通信科技股份有限公司 | Active antenna and manufacturing method |
| CN111755829B (en) * | 2020-05-29 | 2023-08-18 | 常熟市泓博通讯技术股份有限公司 | High gain antenna module |
| CN111755829A (en) * | 2020-05-29 | 2020-10-09 | 常熟市泓博通讯技术股份有限公司 | High gain antenna module |
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