Bandwidth and Transmission Zero Control for Compact Dual-Mode Resonator Filter by Extraction of EM Coupling

Shao-Chan Tang; Jen-Tsai Kuo; Shyh-Jong Chung

doi:10.1109/APMC.2012.6421695

Bandwidth and Transmission Zero Control for Compact Dual-Mode Resonator Filter by Extraction of EM Coupling

Shao-Chan Tang, Jen-Tsai Kuo, Shyh-Jong Chung

Department of Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

The electric coupling and magnetic coupling are extracted for a dual-mode resonator filter. The resonator is a half-wave section with its center being shorted to ground. The extraction relies on an equivalent circuit model. With properly tuning of the coupled-line sections, the electric and magnetic coupling coefficients of the two quarter-wave resonators can be adjusted, and hence both the filter bandwidth and zero frequency can be controlled. Two experimental filters are fabricated and measured for validation. Good agreement between measurement and simulation is obtained.

Original language	English
Title of host publication	2012 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC 2012)
Publisher	IEEE
Pages	661-663
Number of pages	3
ISBN (Print)	978-1-4577-1330-9, 978-1-4577-1331-6
DOIs	https://doi.org/10.1109/APMC.2012.6421695
State	Published - 4 Dec 2012

Publication series

Name	Asia Pacific Microwave Conference-Proceedings

Keywords

Bandpass filter
dual-mode resonator
transmission zero
electric coupling
mixed coupling
magnetic coupling

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10.1109/APMC.2012.6421695

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title = "Bandwidth and Transmission Zero Control for Compact Dual-Mode Resonator Filter by Extraction of EM Coupling",

abstract = "The electric coupling and magnetic coupling are extracted for a dual-mode resonator filter. The resonator is a half-wave section with its center being shorted to ground. The extraction relies on an equivalent circuit model. With properly tuning of the coupled-line sections, the electric and magnetic coupling coefficients of the two quarter-wave resonators can be adjusted, and hence both the filter bandwidth and zero frequency can be controlled. Two experimental filters are fabricated and measured for validation. Good agreement between measurement and simulation is obtained.",

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Bandwidth and Transmission Zero Control for Compact Dual-Mode Resonator Filter by Extraction of EM Coupling. / Tang, Shao-Chan; Kuo, Jen-Tsai; Chung, Shyh-Jong.

2012 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC 2012). IEEE, 2012. p. 661-663 (Asia Pacific Microwave Conference-Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - The electric coupling and magnetic coupling are extracted for a dual-mode resonator filter. The resonator is a half-wave section with its center being shorted to ground. The extraction relies on an equivalent circuit model. With properly tuning of the coupled-line sections, the electric and magnetic coupling coefficients of the two quarter-wave resonators can be adjusted, and hence both the filter bandwidth and zero frequency can be controlled. Two experimental filters are fabricated and measured for validation. Good agreement between measurement and simulation is obtained.

AB - The electric coupling and magnetic coupling are extracted for a dual-mode resonator filter. The resonator is a half-wave section with its center being shorted to ground. The extraction relies on an equivalent circuit model. With properly tuning of the coupled-line sections, the electric and magnetic coupling coefficients of the two quarter-wave resonators can be adjusted, and hence both the filter bandwidth and zero frequency can be controlled. Two experimental filters are fabricated and measured for validation. Good agreement between measurement and simulation is obtained.

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KW - mixed coupling

KW - magnetic coupling

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