Wide Band Spurious Suppression of Multi-Strip Resonator BPF -- Comprehensive Way to Suppress Spurious Responses in BPFs --

Ikuo AWAI  

IEICE TRANSACTIONS on Electronics   Vol.E93-C   No.7   pp.942-948
Publication Date: 2010/07/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E93.C.942
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
spurious suppression,  multi-strip resonator,  BPF,  LTCC structure,  

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A new comprehensive method to suppress the spurious modes in a BPF is proposed taking the multi-strip resonator BPF as an example. It consists of disturbing the resonant frequency, coupling coefficient and external Q of the higher-order modes at the same time. The designed example has shown an extraordinarily good out-of-band response in the computer simulation.