EHF frequency band microwave network device

Abstract

The invention provides an EHF frequency band microwave network device with a novel structural design. The device comprises a wave separator provided with six ports; Four Q / K frequency band cavity filters; two + 45 DEG phase shifters; two-45 DEG phase shifters; a combiner provided with five ports; a separator polarizer; and a K-band orthogonal mode coupler. The four Q / K frequency band cavity filters are respectively connected to a front side port, a rear side port, an upper side port and a lower side port of the wave separator. One end of the two +45 DEG phase shifters in the same direction are respectively connected to the two Q / K frequency band cavity filters, and the other ends of the two +45 DEG phase shifters are respectively connected to the combiner. One end of the two -45 DEG phase shifters in the same direction is connected to the two Q / K frequency band cavity filters, the other end of the 45-degree phase shifter is connected to the combiner, and the separator polarizer is connected to a left side port of the wave separator. The K-band orthogonal mode coupler is connected to a left side port of the combiner. A circular waveguide is connected to the port of the right sidesurface of the wave separator.

Description

technical field [0001] The invention relates to the field of satellite communication, in particular to an EHF frequency band microwave network device for an EHF frequency band satellite communication antenna. Background technique [0002] In recent years, with the changes in the international political and economic situation and the rapid development of semiconductor microelectronics technology, the status of satellite communication technology has become more and more important, especially the high-frequency millimeter-wave frequency band satellite communication system, which has become the development goal of various countries . As a part of the millimeter-wave frequency band, the EHF frequency band has also attracted more attention from various countries, so the development of radio frequency equipment in the EHF frequency band is becoming more and more urgent. Under the premise of the international environment, military applications, civilian needs and the gradual maturi...

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Problems solved by technology

[0003] 1. The traditional UHF microwave network adopts microstrip mode for transmission, coupling and power division, but this form of microwave network cannot withstand the use of high power;

[0004] 2. When the traditional ultra-high frequency microwave network is designed with a cavity method, the polarizer adopts a cross-tooth polarizer. This form is difficult to guarantee performance through processing, and it is difficult to debug due to ultra-high frequency during manual debugging;

[0005] 3. When the traditional UHF microwave network is designed in the form of a cavity, most of them are asymmetrical structures, which are not conducive to the realization of the circular polarization function;

[0006] 4. When the traditional ultra-high frequency microwave network is designed by the cavity method, in order to reduce the difficulty of processing, the overall microwave network structure is relatively large, the design is bloated and lacks aesthetic feeling

[0007] 5. When the traditional ultra-high frequency microwave network is designed by the cavity method, in order to reduce the difficulty of processing, microwave devices require a lot of manual debugging. Due to the difficulty of ultra-high frequency debugging, it is not conducive to mass production

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