Wide Stopband Substrate Integrated Waveguide Filter Using Bisection and Trisection Coupling in Multilayer  

作　　者：Peng CHU Jianguo FENG Peng ZHU Lei GUO Long ZHANG Leilei LIU Guoqing LUO Ke WU 

机构地区：[1]College of Electronic and Optical Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China [2]National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology,Nanjing 210023,China [3]School of Information and Communication Engineering,Dalian University of Technology,Dalian 116024,China [4]Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems,Sun Yat-sen University,Guangzhou 510006,China [5]College of Electronics and Information Engineering,Shenzhen University,Shenzhen 518060,China [6]School of Electronics and Information,Hangzhou Dianzi University,Hangzhou 310018,China [7]Poly-Grames Research Center,Polytechnique Montreal,Montreal,QC H3T 1J4,Canada

出　　处：《Chinese Journal of Electronics》2024年第2期436-442,共7页电子学报（英文版）

基　　金：supported in part by the National Natural Science Foundation of China(Grant Nos.61601246,62001081,and 62001250);the open research fund of the National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology(Grant No.KFJJ20210203);the Natural Science Foundation of Nanjing University of Posts and Telecommunications(Grant No.NY221061).

摘　　要：This article presents a highly efficient method for substrate-integrated-waveguide(SIW)filters to achieve very wide stopbands.By employing the proposed trisection slots in addition to the bisection slots as the inter-coupling structures,all spurious modes below TE505 of a SIW filter working in the fundamental mode TE101(f0)can be eliminated without requiring additional structure or complex theoretical analysis,without affecting the design of the fundamental passbands,and without degrading the performance of the filters.For verification,two prototype filters are designed,fabricated,and measured with wide stopbands up to 4.15f0 and 4.83f0,respectively.The proposed technique could facilitate the development of high-performance wide-stopband SIW filters for microwave/wireless circuits and systems.

关 键 词：Bandpass filter Wide stopband Substrate integrated waveguide Spurious mode suppression Multilayer. 

分 类 号：TN713[电子电信—电路与系统]