NEW NEGATIVE COUPLING STRUCTURE FOR SUBSTRATE-INTEGRATED CAVITY RESONATORS AND ITS APPLICATION TO DESIGN OF AN ELLIPTIC RESPONSE FILTER

被引:10
作者
Lee, Kangho [1 ]
Lee, Tae-Hak [1 ]
Kim, Young-Sik [1 ]
Lee, Juseop [1 ]
机构
[1] Korea Univ, Dept Comp & Commun Engn, Seoul 136713, South Korea
基金
新加坡国家研究基金会;
关键词
BANDPASS-FILTERS; EXTRACTION; MATRIX;
D O I
10.2528/PIER13012011
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
This paper presents a new type of a negative coupling structure for designing elliptic-response filters with cross-coupling. The proposed coupling structure consists of short-circuited coupled transmission lines. Using the fact that insertion phase of the coupled line structure is different from that of an inductive iris, it is shown that the proposed coupling structure can be used as the negative coupling structure. In order to verify the proposed coupling structure, we designed a 4th-order cross-coupled elliptic-response bandpass filter with substrate integrated waveguide resonators. A pair of transmission zeros in measurement and simulation results validates that the proposed structure can be used as the negative coupling structure.
引用
收藏
页码:117 / 127
页数:11
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