Dual-mode microstrip open-loop resonators and filters

Jia Sheng Hong; Hussein Shaman; Young Hoon Chun

doi:10.1109/TMTT.2007.901592

Dual-mode microstrip open-loop resonators and filters

Jia Sheng Hong, Hussein Shaman, Young Hoon Chun

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

310 Citations (Scopus)

Abstract

A miniature dual-mode microstrip open-loop resonator is proposed. Distinct characteristics of this new type of dual-mode resonator are investigated using full-wave electromagnetic simulations. It is shown that the two operating modes, i.e., the even and odd modes, within a single dual-mode resonator of this type do not couple. It is also found that there is a finite-frequency transmission zero inherently associated with the even mode. Two two-pole filters using this type of dual-mode resonator are demonstrated with opposite asymmetric responses, which result from different locations of the transmission zero. Higher order filters of this type are also investigated. Both simulated and measured results are presented. © 2007 IEEE.

Original language	English
Pages (from-to)	1764-1770
Number of pages	7
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	55
Issue number	8
DOIs	https://doi.org/10.1109/TMTT.2007.901592
Publication status	Published - Aug 2007

Keywords

Dual-mode resonators and filters
Microstrip filters
Microstrip resonators

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10.1109/TMTT.2007.901592

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title = "Dual-mode microstrip open-loop resonators and filters",

abstract = "A miniature dual-mode microstrip open-loop resonator is proposed. Distinct characteristics of this new type of dual-mode resonator are investigated using full-wave electromagnetic simulations. It is shown that the two operating modes, i.e., the even and odd modes, within a single dual-mode resonator of this type do not couple. It is also found that there is a finite-frequency transmission zero inherently associated with the even mode. Two two-pole filters using this type of dual-mode resonator are demonstrated with opposite asymmetric responses, which result from different locations of the transmission zero. Higher order filters of this type are also investigated. Both simulated and measured results are presented. {\textcopyright} 2007 IEEE.",

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AB - A miniature dual-mode microstrip open-loop resonator is proposed. Distinct characteristics of this new type of dual-mode resonator are investigated using full-wave electromagnetic simulations. It is shown that the two operating modes, i.e., the even and odd modes, within a single dual-mode resonator of this type do not couple. It is also found that there is a finite-frequency transmission zero inherently associated with the even mode. Two two-pole filters using this type of dual-mode resonator are demonstrated with opposite asymmetric responses, which result from different locations of the transmission zero. Higher order filters of this type are also investigated. Both simulated and measured results are presented. © 2007 IEEE.

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JO - IEEE Transactions on Microwave Theory and Techniques

JF - IEEE Transactions on Microwave Theory and Techniques

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Dual-mode microstrip open-loop resonators and filters

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Keywords

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