New Bandstop Filter Circuit Topology and Its Application to Design of a Bandstop-to-Bandpass Switchable Filter

被引：55

作者：

Lee, Juseop ^{[1
]}

Naglich, Eric J. ^{[2
]}

Sigmarsson, Hjalti H. ^{[3
]}

Peroulis, Dimitrios ^{[2
]}

Chappell, William J. ^{[2
]}

机构：

[1] Korea Univ, Dept Comp & Commun Engn, Seoul 136701, South Korea

[2] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA

[3] Univ Oklahoma, Sch Elect & Comp Engn, Norman, OK 73091 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2013年 / 61卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Bandpass filter; bandstop filter; filter synthesis; resonator filter;

D O I：

10.1109/TMTT.2012.2237036

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：

In this paper, we show a new bandstop filter circuit topology. Unlike conventional bandstop filter circuit topologies, the new circuit topology has inter-resonator coupling structures. The presence of these inter-resonator coupling structures enables convenient switching from a bandstop to a bandpass filter. Using the new bandstop filter topology, this paper demonstrates a design of a frequency-agile bandstop-to-bandpass switchable filter. The filter is composed of tunable substrate-integrated cavity resonators and can be switched to have either a bandstop or bandpass response. Switching is achieved by turning on and off switches placed within the filter structure. A prototype of the proposed design is fabricated and the concept is verified experimentally.

引用

页码：1114 / 1123

页数：10

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