Stopband-Extended Balanced Bandpass Filter Using Coupled Stepped-Impedance Resonators
Stopband-Extended Balanced Bandpass Filter Using Coupled Stepped-Impedance Resonators
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DOI：
10.1109/lmwc.2007.899311
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发表时间：
2007-07
影响因子：
3
通讯作者：
Chung-Hwa Wu;Chi-Hsueh Wang;C. Chen
中科院分区：
文献类型：
--
作者：
Chung-Hwa Wu;Chi-Hsueh Wang;C. Chen
提出了一种基于半波长阶跃阻抗谐振器(SIRS)的新型四阶平衡带通滤波器。通过适当调整每个SIR的参数，可以使所提出的滤波器结构紧凑，同时还可以扩展其阻带。具体地说，实现了一个具有可接受共模抑制的平衡滤波器，其差模和共模阻带扩展到5.5fod，其中f0d是差模通带的中心频率。
A novel fourth-order balanced bandpass filter is proposed based on the half-wavelength (lambda/2) stepped-impedance resonators (SIRs). By properly adjusting the parameters of each SIR, the proposed filter may be made compact and its stopband may also be extended simultaneously. Specifically, a balanced filter with acceptable common-mode rejection is implemented with its differential-mode and common-mode stopbands extended up to 5.5 fo d, where fo d is the center frequency of differential-mode passband.