A New Wideband Elliptic Bandstop Filter With Cross Coupling
作者： Si-Wei Ren , Lin-Sheng Wu , Hong-Li Peng , Jun-Fa Mao
DOI: 10.1109/LMWC.2015.2463098
关键词: Band-stop filter 、 Elliptic filter 、 Electronic engineering 、 Coupling 、 Stopband 、 Passband 、 Wideband 、 Attenuation 、 Engineering 、 Prototype filter
摘要: A novel fifth-order elliptic cross-coupled wideband bandstop filter (BSF) is proposed and designed in this letter. It devised by introducing additional electric coupling into two nonadjacent quarter-wavelength shunt stubs of a conventional commensurate line BSF. The selectivity stopband rejection can be effectively enhanced extra transmission zeros generated from the coupling. BSF directly normalized lowpass prototype using design formulas, which are derived based on rigorous correspondence between its lumped $S$ -plane. In order to demonstrate our design, example developed, with measured 27.2 dB over fractional bandwidth 141.7%.
sci-hub.se 参考文章(10)
Lin Li, Qing‐Hua Wu, Kai‐Yu Zhao, Jin Li, Ya‐Ming Wang, Sharp-rejection and ultra-wide bandstop filter with five transmission zero frequencies Iet Microwaves Antennas & Propagation. ,vol. 8, pp. 80- 85 ,(2014) , 10.1049/IET-MAP.2012.0507
Roberto Gomez-Garcia, Miguel-Angel Sanchez-Soriano, Manuel Sanchez-Renedo, German Torregrosa-Penalva, Enrique Bronchalo, Low-Pass and Bandpass Filters With Ultra-Broad Stopband Bandwidth Based on Directional Couplers IEEE Transactions on Microwave Theory and Techniques. ,vol. 61, pp. 4365- 4375 ,(2013) , 10.1109/TMTT.2013.2281965
Kandimalla Divyabramham, Mrinal Kanti Mandal, Subrata Sanyal, Sharp-Rejection Wideband Bandstop Filters IEEE Microwave and Wireless Components Letters. ,vol. 18, pp. 662- 664 ,(2008) , 10.1109/LMWC.2008.2003452
V.K. Velidi, A.B. Guntupalli, S. Sanyal, Sharp-Rejection Ultra-Wide Bandstop Filters IEEE Microwave and Wireless Components Letters. ,vol. 19, pp. 503- 505 ,(2009) , 10.1109/LMWC.2009.2024834
Lin Li, Zheng-Fan Li, Jun-Fa Mao, Compact Lowpass Filters With Sharp and Expanded Stopband Using Stepped Impedance Hairpin Units IEEE Microwave and Wireless Components Letters. ,vol. 20, pp. 310- 312 ,(2010) , 10.1109/LMWC.2010.2047457
B.M. Schiffman, L. Young, Design Tables for an Elliptic-Function Band-Stop Filter (N=5) IEEE Transactions on Microwave Theory and Techniques. ,vol. 14, pp. 474- 482 ,(1966) , 10.1109/TMTT.1966.1126306
Ming-Yu Hsieh, Shih-Ming Wang, Compact and wideband microstrip bandstop filter IEEE Microwave and Wireless Components Letters. ,vol. 15, pp. 472- 474 ,(2005) , 10.1109/LMWC.2005.851572
Mrinal Kanti Mandal, K. Divyabramham, Subrata Sanyal, Compact, Wideband Bandstop Filters With Sharp Rejection Characteristic IEEE Microwave and Wireless Components Letters. ,vol. 18, pp. 665- 667 ,(2008) , 10.1109/LMWC.2008.2003454
Miguel Á. Sanchez-Soriano, Germán Torregrosa-Penalva, Enrique Bronchalo, Compact Wideband Bandstop Filter With Four Transmission Zeros IEEE Microwave and Wireless Components Letters. ,vol. 20, pp. 313- 315 ,(2010) , 10.1109/LMWC.2010.2047468
Hussein Shaman, Jia-Sheng Hong, Wideband Bandstop Filter With Cross-Coupling IEEE Transactions on Microwave Theory and Techniques. ,vol. 55, pp. 1780- 1785 ,(2007) , 10.1109/TMTT.2007.901600