双耦合线高选择性双通带带通滤波器

2014 IEEE MTT-S International Microwave Symposium (IMS2014) Pub Date : 2014-06-01 DOI:10.1109/MWSYM.2014.6848462

Bo-Han Wang, Ching‐Wen Tang

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引用次数: 2

摘要

提出了一种微带双带带通滤波器。通过调整偶模和奇模阻抗，两个共振形成两个通带。传输零点位于两个通带裙边的两侧，可以通过短耦合线的耦合系数进行调节。为了演示，设计并制作了工作在0.8 GHz和2.2 GHz的双频带通滤波器。给出了理论分析和测量结果。良好的一致性验证了所提出的方法。

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High-selectivity dual-passband bandpass filter with dual coupled lines

A microstrip dual-band bandpass filter is presented. By adjusting the even- and odd-mode impedances, two resonances formed two passbands. Moreover, transmission zeros are located at both sides of two passband skirts, which can be adjusted by the coupling coefficient of the shorted coupled line. For demonstration, a dual-band bandpass filter operating at 0.8 and 2.2 GHz is designed and fabricated. The theoretical analysis and measurement are presented. Good agreement verifies the proposed method.

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来源期刊

2014 IEEE MTT-S International Microwave Symposium (IMS2014)

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