Integrated cavity band-pass filter and low-pass filter assembly

Abstract

The invention discloses an integrated cavity band-pass filter and low-pass filter assembly, and belongs to the field of microwave devices. The assembly is formed by connecting a cavity band-pass filter and a cavity low-pass filter, wherein the cavity band-pass filter and the cavity low-pass filter are integrally connected and combined into a whole; the band-pass filter and the cavity low-pass filter are in matched connection through an inner conductor in the cavity low-pass filter; the inner conductor of the cavity low-pass filter is fixedly connected with a metal resonance column of the cavity band-pass filter; the cavity low-pass filter is a candied fruit filter; the cavity band-pass filter is a toe or comb filter; and the cavity low-pass filter and the band-pass filter are coaxial filters and are multi-order filters. According to the integrated cavity band-pass filter and low-pass filter assembly, mainly aiming at the cavity band-pass filter and the cavity low-pass filter, integration of the low-pass filter and the band-pass filter is achieved in a manner of fixedly connecting the inner conductor in the cavity low-pass filter and the metal resonance column in the cavity band-pass filter; the size of the device is reduced; the method is simple; and the requirement of high harmonic suppression of the filters is achieved.

Description

technical field [0001] The invention belongs to the field of microwave devices, and in particular relates to an integrated cavity band-pass filter and low-pass filter assembly, which can realize good suppression at far-end high-order harmonics. Background technique [0002] With the development of satellite technology, the spectrum resources of the payload are very tight, and it is necessary to develop high-performance filter components for high clutter and harmonic suppression, especially integrated filters with near-band high clutter and far-band high harmonic suppression Components, this type of filter component is widely used in navigation satellite payloads, and can also be used in other satellite payloads and ground communication systems. The switch filter bank can be switched to the required band through the switch to meet the requirements of broadband technology communication and is widely used. A switch filter bank generally uses several switch filters to achieve a...

AI Technical Summary

Problems solved by technology

However, the band-pass filter in this component is a similar elliptic function filter, and the band-pass filter and the low-pass filter are matched through the internal transmission line, and the real integration cannot be realized; during the assembly process of the component, it is necessary Assemble the SMA separately to adjust the band-pass filter and low-pass filter, and then assemble them together after adjustment, the operation steps are cumbersome

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