The quasi-elliptic bandpass filter using quarter-wavelength stepped impedance resonators

被引：0
|
作者：
Chen, Yu-Wei [1 ]
Liu, Yen-Ju [1 ]
Ho, Min-Hua [1 ]
机构：
[1] Changhua Univ Educ, Grad Inst Commun Engn, Dept Elect Engn, Changhua, Taiwan
来源：
PIERS 2007 BEIJING: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM, PTS I AND II, PROCEEDINGS | 2007年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A bandpass filter is designed using two end-connected quarter-wavelength stepped impedance resonators. The quarter-wavelength stepped impedance resonators are implemented by a half-wavelength stepped impedance resonator with its middle shorting to ground. Hence, the modes that the lambda/4 stepped impedance resonator supports are the (1+ 2n)/4 which also occur on the branches of a combline. An enhanced U-shape coupling feed is adopted in the filter design to reduce the insertion losses as well as suppressing the harmonics. The proposed filter has a quasi-elliptic frequency response. An equivalent circuit model is developed and the experiments are conducted for circuit design verification.
引用
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页码：572 / +
页数：2
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