Compact UWB bandpass filter with tunable notch band based on folded SIR

被引：18
|
作者：
Wei, F. [1 ]
Chen, L. [2 ]
Shi, X. -W. [1 ]
Liu, B. [1 ]
机构：
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China
[2] Xian Technol Univ, Sch Elect & Informat Engn, Xian 710032, Peoples R China
来源：
ELECTRONICS LETTERS | 2011年 / 47卷 / 22期
关键词：
D O I：
10.1049/el.2011.2243
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：
An ultra-wideband (UWB) bandpass filter (BPF) with an electronically tunable notch band based on a folded stepped impedance resonator (SIR) is investigated. The proposed UWB BPF comprises four folded shunt quarter-wavelength short-circuited stubs, one SIR with a metallised via hole to ground and a varactor diode with DC bias. The SIR is studied and employed to generate one desired notched band. The predicted results are compared with measured data and good agreement is reported.
引用
收藏
页码：1229 / 1230
页数：2
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