Multiple-substrate integrated waveguide filtering power divider

Abstract

The invention discloses a multiple-substrate integrated waveguide filtering power divider. The multiple-substrate integrated waveguide filtering power divider comprises three dielectric substrates and four layers of metal, wherein the four layers of metal are located on the upper surface of the uppermost substrate, on the lower surface of the lowermost substrate and between the substrates respectively. A rectangular metallization through hole array is formed by metallization holes in the four edges. A rectangular resonant cavity is formed by the rectangular metallization through hole array and the two layers of metal between the substrates. An input port is formed in the left side of the rectangular resonant cavity and an output port is formed in the right side of the rectangular resonant cavity. A one-to-four filtering power divider and a one-to-two same-phase or opposite-phase filtering power divider can be flexibly designed. A substrate-integrated waveguide inductive window filter is embedded between the input port and the output port. The multiple-substrate integrated waveguide filtering power divider has the advantages of being broad in band, low in insertion loss, good in input voltage standing wave ratio, good in consistency of amplitudes of output signals, low in amplitude unbalance and the like. The multiple-substrate integrated waveguide filtering power divider can be applied to a microwave and millimeter wave antenna feed network and the like and has wide application prospect in microwave and millimeter wave systems such as a communication system and radar.

Description

technical field [0001] The invention relates to a multi-channel low insertion loss and broadband substrate integrated waveguide filter power splitter, which belongs to the technical field of microwave passive devices. Background technique [0002] The power splitter is a key component of the power combining amplifier and the antenna array feeding system; the previous research on the power splitter mainly focused on widening the bandwidth, miniaturization, and multi-frequency response. At the same time, bandpass filters are also indispensable components in communication systems; the main research directions are frequency selectivity, miniaturization, and multiple bandpasses. In many systems, power splitters and filters are usually connected together to achieve filtering and power splitting performance. This design only focuses on their own performance, and the size is relatively large. The present invention jointly optimizes the design of the filter power splitter, realizes...

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This design only focuses on their own performance, and the size is relatively large

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