Bidirectional uniform irradiation antenna feed system

Abstract

The invention relates to a bidirectional uniform irradiation antenna feed system. The system comprises a power division feed network (201) and multiple waveguide slit antenna arrays (118), wherein themultiple waveguide slit antenna arrays (118) are uniformly divided into two sets which are arranged up and down, each multiple waveguide slit antenna array (118) comprises eight waveguide slit antennas (402), the waveguide slit antennas (402) are arranged on a first power distributor (505) of the power division feed network (201), and the waveguide slit antennas (402) of the two waveguide slit antenna arrays (118) symmetric to each other up and down are arranged in a staggered mode. The system is advantaged in that bidirectional irradiation is employed, the top portion and the bottom portionrespectively have 32 waveguide slit antennas (402) which radiate to the middle, the radiation field is uniformly distributed, irradiation blind areas are effectively reduced, moreover, the waveguide slit antennas employ a standing wave array antenna mode, irradiation electromagnetic field length is uniformly distributed along the antenna direction, the two adjacent waveguide slit antennas are fedby different frequency sources, slits are in a mutual staggered mode, and electromagnetic field superposition is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of antenna feed systems, in particular to a bidirectional uniform radiation antenna feed system. Background technique [0002] In recent years, high-power microwave technology has been greatly developed. As the front end of the system, the form, structure and performance of the antenna are becoming more and more important to the design of the entire system. This antenna feed system is used in high-power microwave environments. The frequency is in the UHF band. [0003] The total number of slots in the waveguide slot antenna is large, and the radiation of each slot is small, so the influence on the transmission field in the waveguide is small, and the electric field will not be enhanced. The power capacity in the waveguide cavity is large. In addition, the processing of the waveguide slot antenna Simple, high precision, compact structure, low cost, easy to control aperture distribution, etc., so it has been ...

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Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a two-way uniform radiation antenna feed system, which is used to solve the problem of the narrow bandwidth of the antenna waveguide slot antenna inside the metal shielding cabin of the existing antenna feed system, uneven distribution of electromagnetic field energy, and easy occurrence of The problem of sparking

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