CN201378627Y - Novel plane radar antenna capable of achieving beam-forming - Google Patents
Novel plane radar antenna capable of achieving beam-forming Download PDFInfo
- Publication number
- CN201378627Y CN201378627Y CN200920106851U CN200920106851U CN201378627Y CN 201378627 Y CN201378627 Y CN 201378627Y CN 200920106851 U CN200920106851 U CN 200920106851U CN 200920106851 U CN200920106851 U CN 200920106851U CN 201378627 Y CN201378627 Y CN 201378627Y
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- antenna
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- flat plane
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Abstract
The utility model discloses a novel plane radar antenna capable of achieving beam-forming, relating to a wide-beam antenna unit in the radar field and consisting of a plane antenna array, a power distribution combiner, a phase modulator, etc. The novel plane radar antenna adopts the simple plane power distribution combiner to control electric field distribution in the direction vertical to a plane antenna sub-array and match with the phase modulator to modulate the phase of the plane antenna sub-array to cause the antenna to achieving beam-forming in the direction vertical to the plane antenna sub-array. The novel plane radar antenna capable of achieving beam-forming has the characteristics of high antenna radiation efficiency, easy control of amplitude and phase distribution, compact structure, low profile and easy processing and installation, and the like, and is especially suitable for the manufacture of the wide-beam radar antenna.
Description
Technical field
The utility model relates to a kind of plane radar antenna, the particularly a kind of novel planar radar antenna that can realize wave beam forming.
Background technology
For high directionality and the wave beam high resolution that guarantees radar antenna, then complex target is carried out accurate pointing (position), make this high directed narrow beam along with beam-broadening carries out the wide-angle area detection, thereby need radar antenna on some directions, to realize wave beam forming.At present, domestic known beam-shaped antenna adopts reflector antenna, and the width of cloth of change feed distributes mutually and reflector shape produces the shaped-beam that needs.Its shortcoming mainly is: the size of antenna is all bigger, the section height.Owing to need accurately control reflector shape, the difficulty of processing is very very much not had an adjustability, and reflector antenna because feed blocks, can not be realized ultralow secondary lobe usually.
Summary of the invention
The purpose of the utility model patent has been to overcome the weak point in the above-mentioned background technology, the wide novel planar radar antenna that can realize wave beam forming of a kind of novel efficient has been proposed, it comprises planar array antenna, assemblies such as power division and road device, phase modulator, described planar array antenna is made up of the flat plane antenna submatrix; Described flat plane antenna submatrix is made up of planar antenna element; The feed port of described flat plane antenna submatrix connects the output port with the corresponding a plurality of phase modulators of its quantity respectively, and the input port of phase modulator connects the output port of power division and road device; The input port of power division and road device is as the feed port of whole planar array antenna.
Technique scheme can further be improved to: described power division and road device be by forming with road device and amplitude modulator, and amplitude modulator is positioned at the centre with two branched bottoms of road device.
Technique scheme can further be improved to: described planar array antenna is rearranged according to constant spacing by plural at least flat plane antenna submatrix.
Technique scheme can further be improved to: described flat plane antenna submatrix is rearranged according to constant spacing by plural at least planar antenna element.
Technique scheme can further be improved to: described planar antenna element can adopt planar antenna element forms such as Waveguide slot antenna or microstrip antenna.
The novel efficient broad beam figuration flat plane antenna that the utility model patent proposes, it is little that it has size, the efficient height, section is low, and has adjustability, and the amplitude and the phase place of conditioning signal can realize characteristics such as ultralow secondary lobe simultaneously.
Description of drawings
Fig. 1 is the power division figure of each antenna submatrix of the utility model Theoretical Calculation.
Fig. 2 is the phase assignments figure of each antenna submatrix of the utility model Theoretical Calculation.
Fig. 3 is a flat plane antenna subarray configuration schematic diagram of the present utility model.
Fig. 4 is the structural representation of novel shaped aerial of the present utility model.
Fig. 5 is power division of the present utility model and road device structural representation.
Fig. 6 is the actual measurement directional diagram of novel shaped aerial of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, specifically set forth the technical solution of the utility model execution mode.For the size that realizes the wave beam forming flat plane antenna is little, the efficient height, characteristics such as section is low, the utility model adopts following technical scheme.As shown in Figure 1, shaped-beam antenna directional diagram as requested, the spoke degree and the PHASE DISTRIBUTION of design and optimization planar array antenna, the utility model patent adopts the antenna pattern integrated approach.The purpose of this antenna synthesis promptly distributes mutually by the width of cloth of each element excitation of array of controls, is in close proximity to the directional diagram of target shape with generation.The method that is used for the shaped-beam Pattern Synthesis is a lot, comprises technology such as Fourier transform method, Woodward complex art.Guarantee as far as possible that in the antenna submatrix width of cloth distributes under the prerequisite that is easy to realize mutually, done certain improvement to thanking to elder brother shellworf multinomial synthesis, the width of cloth that calculates figuration face antenna radiates unit distributes mutually, and Theoretical Calculation obtains each element excitation of antenna and gets amplitude and phase place.As shown in Figure 1, shown the power division percentage of each antenna submatrix sequence, Fig. 2 has then shown the PHASE DISTRIBUTION of each antenna submatrix sequence.
As shown in Figure 3, according to the Theoretical Calculation gained, press in the flat plane antenna submatrix 4 and equidistantly arrange a plurality of planar antenna element 5.A plurality of flat plane antenna submatrixs 4 are regular as to line up flat plane antenna according to designing requirement again, thereby constitute planar array antenna 1.
Referring to accompanying drawing 4, the input port of flat plane antenna submatrix 1 connects the input port of phase modulator 3, and the input port of phase modulator 3 connects the output port of power division and road device 2.Adjust the output phase of phase modulator 3, come the PHASE DISTRIBUTION of control plane antenna array in 1 orientation of flat plane antenna submatrix.
Participate in accompanying drawing 5, power division and road device 2 are by forming with road device 6 and amplitude modulator 7.Amplitude modulator 7 is positioned at the centre with two branched bottoms of road device 6, change amplitude modulator 7 size and with road device 6 in the position, adjust the amplitude of power division and road device 2 each output ports, the amplitude distribution of control plane antenna array in 1 orientation of flat plane antenna submatrix.
Accompanying drawing 6 is actual measurement directional diagrams of the present utility model, is abscissa with phase angle Azimuth, is ordinate with amplitude A mplitude, obtains actual measurement direction of the present utility model.The result shows that actual measurement directional diagram and Design Theory match, as shown in the figure.
Claims (6)
1, a kind of novel planar radar antenna that can realize wave beam forming, by planar array antenna (1), power division and road device (2), phase modulator (3) are formed, and it is characterized in that: described planar array antenna (1) is made up of flat plane antenna submatrix (4); Described flat plane antenna submatrix (4) is made up of planar antenna element (5); The feed port of described flat plane antenna submatrix (4) connects the output port with the corresponding a plurality of phase modulators of its quantity (3) respectively, and the input port of phase modulator (3) connects the output port of power division and road device (2); The input port of power division and road device (2) is as the feed port of whole planar array antenna.
2, a kind of novel planar antenna that can realize wave beam forming according to claim 1, it is characterized in that: described power division and road device (2) be by forming with road device (6) and amplitude modulator (7), and amplitude modulator (7) is positioned at the centre with two branched bottoms of road device (6).
3, a kind of novel planar antenna that can realize wave beam forming according to claim 1 and 2, it is characterized in that: described planar array antenna (1) is rearranged according to constant spacing by plural at least flat plane antenna submatrix (4).
4, a kind of novel planar antenna that can realize wave beam forming according to claim 1 and 2, it is characterized in that: described flat plane antenna submatrix (4) is rearranged according to constant spacing by plural at least planar antenna element (5).
5, a kind of novel planar antenna that can realize wave beam forming according to claim 3, it is characterized in that: described flat plane antenna submatrix (4) is rearranged according to constant spacing by plural at least planar antenna element (5).
6, according to claim 1, the 2 or 5 described a kind of novel planar antennas that can realize wave beam forming, it is characterized in that: described planar antenna element (5) can adopt Waveguide slot antenna or microstrip antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106851U CN201378627Y (en) | 2009-03-26 | 2009-03-26 | Novel plane radar antenna capable of achieving beam-forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106851U CN201378627Y (en) | 2009-03-26 | 2009-03-26 | Novel plane radar antenna capable of achieving beam-forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378627Y true CN201378627Y (en) | 2010-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106851U Expired - Lifetime CN201378627Y (en) | 2009-03-26 | 2009-03-26 | Novel plane radar antenna capable of achieving beam-forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201378627Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296476A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Multi-beam lens antenna |
| WO2018121256A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳超级数据链技术有限公司 | Low profile antenna |
-
2009
- 2009-03-26 CN CN200920106851U patent/CN201378627Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296476A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Multi-beam lens antenna |
| CN103296476B (en) * | 2012-02-29 | 2017-02-01 | 深圳光启高等理工研究院 | Multi-beam lens antenna |
| WO2018121256A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳超级数据链技术有限公司 | Low profile antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100106 |