Transversal Filters based on Stacked Crystal Filters with Spurious Mode Suppression

Yazid Yusuf,Alfred Gimenez, Mudar AlJoumayly,Jordi Mateu,Carlos Collado

2021 IEEE MTT-S International Microwave Filter Workshop (IMFW)（2021）

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摘要

The transversal filter topology consists of resonators which require both positive and negative coupling to the input/output which typically necessitates the use of a BALUN. In this paper, transversal filters based on stacked crystal filters (SCFs) are presented. By inverting the polarity in one side of the SCF structure, both positive and negative couplings can be achieved, and the BALUN is no lo...

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关键词

Couplings,Baluns,Conferences,Resonator filters,Crystals,Transversal filters,Topology

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