Waveguide isolated duplex integrated component

Abstract

The invention discloses a waveguide isolated duplex integrated component which comprises a bottom plate (10) and a cover plate (11) which is arranged on the bottom plate (10), wherein a silver-plated cavity (1), at least two isolators (3) and at least two duplexers (2) are arranged on the bottom plate (10); the isolators (3) and the duplexers (2) are integrated into a whole; an input port (7) is arranged at the central part of the integrated isolators (3) and duplexers (2); at least two output ports are arranged at two ends of the integrated isolators (3) and duplexers (2); and one or more adjusting screws (5) are arranged on the cover plate (11). The waveguide isolated duplex integrated component has the beneficial effects that the duplexers and the isolators are integrated into a whole, the optimal values of isolation degree, insertion loss and standing-wave ratio are obtained within the shortest time by adjusting the adjusting screws; and a circuit board is directly mounted on a shell of the silver-plated cavity of the duplexers, and heat dissipation is carried out by virtue of the shell, so that the debugging work is completed with high quality and high index.

Description

technical field [0001] The invention relates to the field of microwave communication, in particular to a waveguide isolation duplex integrated component. Background technique [0002] With the expansion of the application range of communication and radar technology, various microwave communication systems are developing more and more rapidly. In the same system, due to frequency congestion and multi-channel real-time two-way communication, it is required that one antenna must be used at the same time for the sending and receiving channels, which requires Design dual-channel channel combiner and splitter circuits at the front end of communication and radar equipment. They are called microwave duplexers. The duplexer composed of waveguides meets the power capacity, stability and reliability of the communication system. At the same time, because the power of signal transmission is relatively strong, the isolation index required by the system cannot be achieved by a single duple...

AI Technical Summary

Problems solved by technology

[0005] (1) Duplexers and isolators are manufactured and debugged separately, resulting in increased costs;

[0006] (2) After the two are manufactured separately, the two are connected. This secondary processing behavior destroys the technical indicators of the duplexer, causes the standing wave of the duplexer to deteriorate, and affects the performance of the duplexer;

[0007] (3) The isolator is placed outside the duplexer, which increases the size of the duplexer, which does not meet the requirements of modern communication systems for miniaturization and high reliability of antenna components. At the same time, the external isolator affects the duplexer. The heat dissipation performance of the components on the supporting circuit board of the device

[0008] At present, the commonly used isolator or duplexer debugging is to install dielectric sheets or dielectric blocks in their cavities, and to find the best technical indicators of the two by continuously moving the positions of these dielectric sheets or dielectric blocks. The good point is that during the debugging process, it is necessary to repeatedly open or close the cover plate of the isolator in order to finally obtain a stable product with the best technical indicators. The production and debugging method of the isolator and duplexer is very unscientific. The secondary processing behavior will destroy the stable technical indicators that have been debugged with great difficulty. According to the research results of multiple field measurement data analysis, the secondary reconfiguration method will cause the standing wave coefficient of the duplexer to deteriorate, which will generally make the emission There is a loss of 7 to 15% of the power, resulting in poor heat dissipation of the components of the duplexer supporting circuit, which in turn affects the service life of the duplexer

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