Compact Ultra-Wideband (UWB) Bandpass Filters With Multiple Notched Bands

被引：86
作者：
Song, Kaijun [1 ,2 ]
Xue, Quan [1 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, State Key Lab MillimeterWaves, Hong Kong, Hong Kong, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Elect Engn, EHF Key Lab Fundamental Sci, Chengdu 610054, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2010年 / 20卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Asymmetric coupling strip; bandpass filter (BPF); compact; notched filter; ultra-wideband (UWB); IMPLEMENTATION;
D O I：
10.1109/LMWC.2010.2050303
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 novel asymmetric coupling strip is presented, which can be used in the ultra-wideband (UWB) bandpass filter (BPF) to generate multiple notched bands within the passband. The proposed structure can provide two main paths for the signals, which makes it possible to generate multiple transmission zeroes. The center frequencies and bandwidths of the notched bands can be controlled by tuning the structural parameters. The asymmetric coupling strip has been integrated into a circular disc resonator to construct a compact UWB BPF with multiple notched bands. The measured results agree with the predicted ones closely. These two notched bands centered at 4.3 and 8 GHz have 10-dB rejection fractional bandwidths of about 4.2% and 3.8%, respectively.
引用
收藏
页码：447 / 449
页数：3
相关论文
共 8 条
[1]   Switchable embedded notch structure for UWB bandpass filter [J].
Chun, Young-Hoon ;
Shaman, Hussein ;
Hong, Jia-Sheng .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2008, 18 (09) :590-592
[2]  
LI Keren., 2006, IEEE European Microwave Conference. (Manchester, UK, P591, DOI DOI 10.1109/EUMC.2006.281461
[3]  
Menzel W., 2006, Proc. 36th EuMC'06, P595, DOI DOI 10.1109/EUMC.2006.281462
[4]   Asymmetric parallel-coupled lines for notch implementation in UWB filters [J].
Shaman, Hussein ;
Hong, Jia-Sheng .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2007, 17 (07) :516-518
[5]   Ultra-wideband (UWB) bandpass filter with embedded band notch structures [J].
Shaman, Hussein ;
Hong, Jia-Sheng .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2007, 17 (03) :193-195
[6]   Compact Ultra-wideband Bandpass Filter Using Dual-Line Coupling Structure [J].
Song, Kaijun ;
Fan, Yong .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2009, 19 (01) :30-32
[7]   Implementation of compact UWB bandpass filter with a notch-band [J].
Wong, Sai Wai ;
Zhu, Lei .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2008, 18 (01) :10-12
[8]   Small ultra-wideband (UWB) bandpass filter with notched band [J].
Yang, Guo-Min ;
Jin, R. ;
Vittoria, C. ;
Harris, V. G. ;
Sun, N. X. .
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2008, 18 (03) :176-178
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