The Strongly Coupled Resonator Quadruplet

被引：5
|
作者：
Bastioli, Simone [1 ]
Snyder, Richard V. [1 ]
Macchiarella, Giuseppe [2 ]
机构：
[1] RS Microwave Co, Butler, NJ 07405 USA
[2] Politecn Milan, Milan 20133, Italy
来源：
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS | 2023年 / 33卷 / 08期
关键词：
Resonator filters; Couplings; Microwave filters; Filtering theory; Passband; Band-pass filters; Topology; Comb-line filters; evanescent mode filters; microwave filters; pseudo-elliptic filters; transmission zeros; FILTERS; DESIGN;
D O I：
10.1109/LMWT.2023.3270099
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 new structure, namely the strongly coupled resonator quadruplet (SCRQ), is presented in this article for the realization of compact pseudoelliptic evanescent mode filters. The SCRQ consists of a quadruplet of resonators, and it can be seen as the combination of a strongly coupled resonator triplet (SCRT) and a fourth resonator, the latter being exclusively coupled to the triplet by means of a regular coupling. Compared to the SCRT, which at the passband frequencies generates two poles and a transmission zero, the SCRQ generates an additional pole and an additional zero. The ability to locate the two zeros extremely close to both passband edges represents a unique feature of the SCRQ. The new structure is successfully validated by the experimental results of a manufactured 5th-order filter employing an SCRQ between two standard resonators.
引用
收藏
页码：1135 / 1138
页数：4
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