Dual-waveguide/multi-waveguide channel structure and tr module working in w-band

Abstract

The invention discloses a dual-waveguide / multi-waveguide channel structure and a TR module working in the W-band. On the waveguide gap between adjacent output waveguide channels, a convex structure is formed by bending along the normal direction perpendicular to the waveguide gap to form a convex structure, and the convex decoupling strand is covered with a wave absorbing material, that is, a double waveguide channel structure is obtained. That is, a multi-waveguide channel structure is obtained. The multi-waveguide channel TR module is provided with the main cavity of the module, and the first side and the second side of the opening are designed on the opposite sides. The first side is sealed by the upper airtight cover, and the waveguide cover and the RF power supply are installed in it. The circulator and the power supply board are installed in the second side, the circulator is sealed by the lower airtight cover, the power supply board cover is covered on the outside of the power supply board, and the power supply insulator passes through the main cavity of the module to connect the power supply board and RF power supply board. The present invention can effectively avoid mutual interference between channels in the W band, and can realize effective air tightness of the module.

Description

technical field [0001] The invention relates to the field of millimeter wave communication and radar, in particular to a double waveguide channel structure working in the W band to prevent inter-channel interference, a multi-waveguide channel structure working in the W band to prevent inter-channel interference, and a working Hermetically sealed multi-waveguide channel TR module for W-band. Background technique [0002] W-band electronic information equipment has great application potential in both military and civilian fields due to its inherent advantages such as small size, light weight, high resolution, and wide bandwidth. W-band technology can be applied to communication, millimeter-wave radar, airport foreign object detection, millimeter-wave security inspection and other fields, and has attracted huge research investment in recent years. Among them, the TR module is an important part of the W-band electronic system. At the back end of the antenna, it mainly performs ...

AI Technical Summary

Problems solved by technology

Among them, due to the high frequency of the W-band, the waveguide is generally used as the interface form of the millimeter wave signal, and the waveguide is a conventional interface form, usually in the form of an opening, which has no protective effect on the internal bare chip and other devices.

At present, most of the existing airtight solutions for waveguide ports solve the airtight problem of a single waveguide channel.

However, it is very difficult to realize the airtightness of the multi-channel waveguide interface, especially for the highly integrated TR module

The second difficulty is that since the waveguide output interfaces of the multi-channel TR module are often arranged in parallel, its internal structure is complex; limited by the processing means, it cannot be processed and formed in one piece, and it must be divided structurally, and then screwed to lock

However, there are two problems with this structure: one is that due to the use of this structure, there must be a waveguide gap between the waveguide channels, and the waveguide gap will cause mutual interference between the channels, so how to solve the mutual interference between the waveguide channels is a problem. Second, the structure does not have airtight characteristics, so how to achieve airtightness for the divided waveguide structure is also a major difficulty

The third difficulty is that TR modules, especially high-power TR modules, have many internal devices, involving circulators, microstrip lines, millimeter-wave chips, digital chips, power chips, connectors, PCB boards, etc. devices, and the number is large, so how to achieve a hermetic package while ensuring a certain degree of integration is very difficult

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