Filter resonator device and symmetrical folded substrate integrated waveguide filter

Abstract

The invention relates to a filter resonant device and a symmetrically-folded substrate-integrated waveguide filter. The filter resonant device comprises at least two filter resonant modules, wherein each filter resonant module is arranged according to a preset rule and comprises a first-layer dielectric plate, a second-layer dielectric plate, a first conductive layer, a second conductive layer, afirst metal through hole array and a second metal through hole array, the first conductive layer is arranged on a first panel, the second conductive layer is arranged on a second panel or a third panel, the first metal through hole array comprises a plurality of first metal through holes, each first metal through hole penetrates through the first-layer dielectric plate, the first conductive layerand the second conductive layer, the second metal through hole array comprises a plurality of second metal through holes, each second through hole penetrates through the first-layer dielectric plate,the first conductive layer, the second conductive layer, the second-layer dielectric plate and the third conductive layer, so that high miniaturization of the symmetrically-folded substrate-integratedwaveguide filter is achieved, and the symmetrically-folded substrate-integrated waveguide filter has excellent performance.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a filter resonance device and a symmetrical folded substrate integrated waveguide filter. Background technique [0002] With the rapid development of information technology, microwave and millimeter wave systems are developing in the direction of miniaturization, high integration, high performance, and low cost. Therefore, the miniaturization degree of microwave devices in microwave and millimeter waves, such as filters high demands. In recent years, Substrate Integrated Waveguide (SIW) has attracted widespread attention because of its good guided wave and easy integration with other planar devices, which also promotes the development of substrate integrated waveguide filter technology. , various new integrated waveguide filters emerge in an endless stream. [0003] Although the size of the substrate integrated waveguide filter is much smaller than that of the metal wavegui...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a filter resonator device and a symmetrically folded substrate integrated waveguide filter for the problem that the lateral size of the traditional substrate integrated waveguide filter is still large

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