本文分析微带SIR(阶梯阻抗谐振器)带通滤波电路的寄生通带问题。

The parasitic passband of microstrip bandpass filters using parallel coupled SIR (Stepped Inpedance Resonators) is analyzed in this paper.

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该滤波器采用阶跃阻抗谐振器（SIR）作为谐振单元，可以有效缩短谐振器长度。

This filter is composed of three stepped-impedance resonators(SIRs), and can decrease the length of resonator effectively.

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该文提出一种混合采用微带阶梯阻抗谐振器和缺陷阶梯阻抗谐振器的新型双通带滤波器设计方法。

This paper presents a novel synthesis method of dual-band bandpass filter composed of both defected stepped impedance resonator DSER.

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