Compact microstrip coupled-line bandpass filter with four transmission zeros

Chao Huang Wu, Yo Shen Lin, Chi Hsueh Wang, Chun Hsiung Chen

研究成果: 雜誌貢獻期刊論文同行評審

29 引文 斯高帕斯(Scopus)

摘要

A compact coupled-line bandpass filter with multiple capacitive cross-couplings to create four transmission zeros is proposed. The locations of transmission zeros can be adjusted by varying the values of cross-coupled capacitances so as to improve the filter selectivity. The proposed filter is based on one-eighth-wavelength (λ/8) coupled-line sections and quarter-wavelength (λ/4) resonators, thus it occupies only half of the circuit area comparing with the conventional coupled-line bandpass filters. Specifically, a fourth-order microstrip coupled-line bandpass filter centered at 2.46 GHz with a 3-dB bandwidth of 10.2% and four transmission zeros is implemented and examined.

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頁(從 - 到)579-581
頁數3
期刊IEEE Microwave and Wireless Components Letters
15
發行號9
DOIs
出版狀態已出版 - 9月 2005

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