Compact single-pole-double-throw switchable bandpass filter based on multicoupled line

Chang Sheng Chen, Jian Fong Wu, Yo Shen Lin

研究成果: 雜誌貢獻期刊論文同行評審

37 引文 斯高帕斯(Scopus)

摘要

A compact single-pole-double-throw (SPDT) switchable bandpass filter (BPF) composed of capacitively loaded multicoupled line is proposed. By replacing the quarter-wavelength impedance transformer at the common junction in conventional designs with a J-inverter, the circuit size is largely reduced and the design procedure is much simplified. As a demonstration, a proposed SPDT switchable BPF is designed and implemented with a center frequency f0 of 1.0 GHz and a bandwidth of about 10%. Low insertion loss in the on state, good isolation in the off state, and good linearity are obtained. The filter size without bias circuits and input/output traces is only 2.5 cm × 2.7 cm, which is about 0.158λg × 0.170 λg at f0.

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文章編號6679292
頁(從 - 到)87-89
頁數3
期刊IEEE Microwave and Wireless Components Letters
24
發行號2
DOIs
出版狀態已出版 - 2月 2014

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