Suspended stripline low-loss bandpass filter with four transmission zeros

Zhao-Xu Xu, Xi Yu, Jia-Qi Liu, Yong-Pin P Chen, Joshua Li Le-Wei

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

A novel fifth-order suspended stripline (SSL) low-loss bandpass filter with four transmission zeros is proposed. The technique of utilising only one cross-coupling structure introduces four transmission zeros to provide high selectivity. By adjusting the parameters of the coupling open loop, the performance of out-of-band of the filter can be changed. A detailed discussion of this effect of the coupling open loop is given. The highest out-of-band rejection of the filter is more than 70 dB. An SSL bandpass filter is designed, fabricated and measured. The measured results are in good agreement with the simulated results.
Original languageEnglish
Pages (from-to)2121 - 2123
Number of pages3
JournalElectronics Letters
Volume51
Issue number25
DOIs
Publication statusPublished - 2015

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