A NOVEL DUAL MODE SUBSTRATE INTEGRATED WAVEGUIDE FILTER WITH MIXED SOURCE-LOAD COUPLING (MSLC)

被引：21
|
作者：
Xu, Ziqiang [1 ]
Shi, Yu [2 ]
Xu, Congyu [1 ]
Wang, Peng [1 ]
机构：
[1] Univ Elect Sci & Technol China, Res Inst Elect Sci & Technol, Chengdu 611731, Peoples R China
[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 611731, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2013年 / 136卷
基金：
中国国家自然科学基金;
关键词：
BANDPASS FILTER; CAVITIES; DESIGN; SICC;
D O I：
10.2528/PIER12121505
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 single-cavity dual mode substrate integrated waveguide (SIW) filter with mixed source-load coupling (MSLC) is presented. By using an interdigital slot-line (ISL) to introduce mixed coupling between source and load, the proposed filter with only one cavity could have three transmission zeros which can be controlled flexibly. Under the circumstances, the filter exhibits better frequency selectivity in comparison with conventional dual mode SIW filters. An experimental filter with a center frequency of 10 GHz and a 3 dB fractional bandwidth of 6.0% is designed, fabricated, and measured to validate the proposed structure. Measured results are provided to show good performance and in agreement with the simulated ones.
引用
收藏
页码：595 / 606
页数：12
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