Waveguide Feeding Structure of Waveguide Broadside Slot Array Antenna
A slot array antenna and waveguide feeding technology, which is applied in the direction of slot antenna, antenna, antenna array, etc., can solve the problem that the antenna does not have phase scanning, etc.
Inactive Publication Date: 2014-09-03
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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Problems solved by technology
The disadvantage is that the amplitude and phase of each radiation waveguide cannot be changed due to the fixed size of the coupling slot on the coupling waveguide, resulting in the antenna not having the function of phase scanning
Method used
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The invention belongs to the field of microwave antennas and relates to the improvement of the waveguide feeding structure of the waveguide broadside slot array antenna. It is characterized in that the waveguide feeding structure is composed of a vertical feeding joint [2], an i-layer feeding waveguide, an ET joint [4], and a waveguide E-plane-H-plane conversion joint [7]. The invention proposes a waveguide feeding structure of a waveguide broadside slot array antenna capable of changing the amplitude and phase of each radiating waveguide, which satisfies the need for an antenna with a phase scanning function.
Description
Waveguide Feeding Structure of Waveguide Broadside Slot Array Antenna technical field The invention belongs to the field of microwave antennas and relates to the improvement of the waveguide feeding structure of the waveguide broadside slot array antenna. Background technique In antenna design, the antenna is usually required to realize the function of one-dimensional electrical scanning. The existing waveguide slot array antenna consists of dozens of radiation waveguides arranged in parallel, each radiation waveguide has n radiation slot areas arranged in a straight line, and all the radiation slot areas form an array. The current waveguide feeding structure is: add a coupling waveguide on the back of the radiation waveguide, the coupling waveguide is perpendicular to the radiation waveguide, and each column of radiation slots shares a coupling waveguide, on the coupling waveguide, the position corresponding to each radiation slot area There is an inclined coupling slot ...
Claims
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Login to View More IPC IPC(8): H01Q13/00H01Q13/10H01Q21/00
Inventor 王旭刚尤立志田可艳
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA