Cassegrain monopulse antenna based on planar array structure

A planar array, pulsed antenna technology, applied in the direction of antenna, antenna grounding switch structure connection, electrical components, etc., can solve the problem of low aperture efficiency, improve aperture efficiency, increase phase compensation accuracy, and improve design freedom and flexibility. Effect

Active Publication Date: 2021-12-24
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The antenna uses multiple arrays to form the main reflector in the form of a groove, which effectively improves the problem of low aperture efficiency of the Cassegrain monopulse antenna with a planar array structure, and has the advantages of high gain, simple structure, and easy processing.

Method used

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  • Cassegrain monopulse antenna based on planar array structure
  • Cassegrain monopulse antenna based on planar array structure
  • Cassegrain monopulse antenna based on planar array structure

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Embodiment Construction

[0029] In order to better illustrate the purpose, advantages and technical solutions of the present invention, the present invention will be further elaborated below in conjunction with specific examples. It should be noted that the specific examples given below are implemented on the premise of the technical solutions of the present invention, and are only for better explanation of the present invention, and are not intended to limit the present invention.

[0030] This embodiment is a Cassegrain monopulse antenna based on a planar array structure working at a center frequency of 16 GHz. see figure 1 , the Cassegrain monopulse antenna of this embodiment is composed of a main reflector 1 , a support structure, a secondary reflector 3 , a feed source 4 , and a sum difference network 5 . The support structure includes a main reflector substrate 6 , a secondary reflector substrate 7 , and four support rods 2 fixedly connecting the two.

[0031] The main reflector 1 is fixed on ...

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Abstract

The invention discloses a Cassegrain monopulse antenna based on a planar array structure, which belongs to the technical field of antennas. The antenna comprises a feed source, a main reflecting surface, an auxiliary reflecting surface, a supporting structure and a sum-difference network. A main reflecting surface of the antenna is a groove-shaped main reflecting surface formed by a plurality of array surfaces, each array surface is formed by a passive unit array, and the shape of each unit is two square rings which are concentrically arranged. The required phase distribution can be realized by adjusting the size parameters of each unit on the array plane, and the design freedom degree and flexibility are improved. The Cassegrain monopulse antenna has the advantages of being high in gain, small in size, easy to machine and the like. Meanwhile, compared with a Cassegrain antenna with a main reflecting surface formed by a single array surface, the aperture efficiency of the antenna is improved.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to a Cassegrain monopulse antenna based on a planar array structure. Background technique [0002] Monopulse radar was developed after the Second World War, and it developed rapidly along with the military needs. A monopulse antenna is a precision tracking antenna. It can simultaneously provide multiple beams on a single pulse, including the sum beam for detecting the target range and performing range tracking, and two difference beams for detecting the azimuth and elevation angle information of the target and performing angle tracking. The monopulse antenna only needs one echo pulse to obtain the distance and all angular coordinate information of the target. Therefore, it can quickly measure the target angle information, the orientation is accurate, and the anti-interference ability is strong. [0003] The Cassegrain antenna is one of the most commonly used forms of monopulse a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/02H01Q19/19H01Q15/16H01Q23/00H01Q1/50
CPCH01Q13/02H01Q19/19H01Q15/148H01Q15/16H01Q23/00H01Q1/50
Inventor 李浩童子豪赵加宁刘思迪
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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