Forked stepped impedance resonator bandpass filter with harmonic suppression

Zhen Mao Rao, Tzu Jung Wong, Min Hua Ho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, a novel two-stage forked stepped impedance resonator (FSIR) bandpass filter is presented. The FSIR originated from an SIR has its both open ends split as a fork structure. A tunable transmission zero, which is used to suppress the second harmonic of the resonator, is created from the even- and odd-mode coupling effect of the two FSIR structures. The tape-lines feed together with the asymmetric feed orientation are adopted in this filter design to provide two additional zeros, each residing on either side of the passband edges, to improve the filter's frequency selectivity. An experiment is conducted and a good agreement between the measurement and the simulation is observed to verify the design.

Original languageEnglish
Title of host publicationAPMC 2005
Subtitle of host publicationAsia-Pacific Microwave Conference Proceedings 2005
DOIs
Publication statusPublished - 2005 Dec 1
EventAPMC 2005: Asia-Pacific Microwave Conference 2005 - Suzhou, China
Duration: 2005 Dec 42005 Dec 7

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC
Volume1

Other

OtherAPMC 2005: Asia-Pacific Microwave Conference 2005
CountryChina
CitySuzhou
Period05-12-0405-12-07

Fingerprint

Bandpass filters
Resonators
Tapes
Experiments

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Rao, Z. M., Wong, T. J., & Ho, M. H. (2005). Forked stepped impedance resonator bandpass filter with harmonic suppression. In APMC 2005: Asia-Pacific Microwave Conference Proceedings 2005 [1606275] (Asia-Pacific Microwave Conference Proceedings, APMC; Vol. 1). https://doi.org/10.1109/APMC.2005.1606275
Rao, Zhen Mao ; Wong, Tzu Jung ; Ho, Min Hua. / Forked stepped impedance resonator bandpass filter with harmonic suppression. APMC 2005: Asia-Pacific Microwave Conference Proceedings 2005. 2005. (Asia-Pacific Microwave Conference Proceedings, APMC).
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Rao, ZM, Wong, TJ & Ho, MH 2005, Forked stepped impedance resonator bandpass filter with harmonic suppression. in APMC 2005: Asia-Pacific Microwave Conference Proceedings 2005., 1606275, Asia-Pacific Microwave Conference Proceedings, APMC, vol. 1, APMC 2005: Asia-Pacific Microwave Conference 2005, Suzhou, China, 05-12-04. https://doi.org/10.1109/APMC.2005.1606275

Forked stepped impedance resonator bandpass filter with harmonic suppression. / Rao, Zhen Mao; Wong, Tzu Jung; Ho, Min Hua.

APMC 2005: Asia-Pacific Microwave Conference Proceedings 2005. 2005. 1606275 (Asia-Pacific Microwave Conference Proceedings, APMC; Vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - In this paper, a novel two-stage forked stepped impedance resonator (FSIR) bandpass filter is presented. The FSIR originated from an SIR has its both open ends split as a fork structure. A tunable transmission zero, which is used to suppress the second harmonic of the resonator, is created from the even- and odd-mode coupling effect of the two FSIR structures. The tape-lines feed together with the asymmetric feed orientation are adopted in this filter design to provide two additional zeros, each residing on either side of the passband edges, to improve the filter's frequency selectivity. An experiment is conducted and a good agreement between the measurement and the simulation is observed to verify the design.

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Rao ZM, Wong TJ, Ho MH. Forked stepped impedance resonator bandpass filter with harmonic suppression. In APMC 2005: Asia-Pacific Microwave Conference Proceedings 2005. 2005. 1606275. (Asia-Pacific Microwave Conference Proceedings, APMC). https://doi.org/10.1109/APMC.2005.1606275