Wideband bandpass filter using open stub loaded square ring

作者: Cong Tang , Xianqi Lin , Yong Fan , Kaijun Song , Daotong Li

DOI: 10.1109/IEEE-IWS.2015.7164515

关键词:

摘要: A wideband bandpass filter under multiple resonances of stepped impedance ring resonator is proposed in this letter. The classical even- and odd-mode method used to analyze the characteristics resonator. It observed that can operate at a wideband. For demonstration, with central frequency 2 GHz 3-dB fractional bandwidth (FBW) 96.7% designed fabricated. experiments have good agreement simulation.

参考文章(8)
J.G. Zhou, Y.C. Chiang, W.Q. Che, Wideband bandpass filter based on ring resonator with high selectivity and multiple transmission zeros Electronics Letters. ,vol. 50, pp. 384- 386 ,(2014) , 10.1049/EL.2013.2908
M. Matsuo, H. Yabuki, M. Makimoto, Dual-mode stepped-impedance ring resonator for bandpass filter applications IEEE Transactions on Microwave Theory and Techniques. ,vol. 49, pp. 1235- 1240 ,(2001) , 10.1109/22.932241
Jin Fan, Dezhi Zhan, Chengjin Jin, Jirun Luo, Wideband Microstrip Bandpass Filter Based on Quadruple Mode Ring Resonator IEEE Microwave and Wireless Components Letters. ,vol. 22, pp. 348- 350 ,(2012) , 10.1109/LMWC.2012.2199977
Amir Ebrahimi, Withawat Withayachumnankul, Said F. Al-Sarawi, Derek Abbott, Compact Dual-Mode Wideband Filter Based on Complementary Split-Ring Resonator IEEE Microwave and Wireless Components Letters. ,vol. 24, pp. 152- 154 ,(2014) , 10.1109/LMWC.2013.2291869
Sheng Sun, Lei Zhu, Wideband Microstrip Ring Resonator Bandpass Filters Under Multiple Resonances IEEE Transactions on Microwave Theory and Techniques. ,vol. 55, pp. 2176- 2182 ,(2007) , 10.1109/TMTT.2007.906510
Lung-Hwa Hsieh, Kai Chang, Compact, low insertion-loss, sharp-rejection, and wide-band microstrip bandpass filters IEEE Transactions on Microwave Theory and Techniques. ,vol. 51, pp. 1241- 1246 ,(2003) , 10.1109/TMTT.2003.809643
Chan Ho Kim, Kai Chang, None, Ring Resonator Bandpass Filter With Switchable Bandwidth Using Stepped-Impedance Stubs IEEE Transactions on Microwave Theory and Techniques. ,vol. 58, pp. 3936- 3944 ,(2010) , 10.1109/TMTT.2010.2084584
Sheng Sun, Lei Zhu, Huei-Hsien Tan, A Compact Wideband Bandpass Filter Using Transversal Resonator and Asymmetrical Interdigital Coupled Lines IEEE Microwave and Wireless Components Letters. ,vol. 18, pp. 173- 175 ,(2008) , 10.1109/LMWC.2008.916780