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Low Insertion-Loss, and Wideband Dual-Mode Bandpass Filters with Dual Perturbation Elements
Shih-Bin JHONG Min-Hang WENG Sean WU Cheng-Yuan HUNG Maw-Shung LEE
Publication
IEICE TRANSACTIONS on Electronics
Vol.E91-C
No.1
pp.117-119 Publication Date: 2008/01/01 Online ISSN: 1745-1353
DOI: 10.1093/ietele/e91-c.1.117 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Microwaves, Millimeter-Waves Keyword: bandpass filter, microstrip, square ring resonator, dual mode, transmission zero,
Full Text: PDF>>
Summary:
A novel low insertion-loss and wideband microstrip bandpass filter has been designed and tested. The basic configuration of this novel dual-mode filter is a square ring resonator with direct-connected orthogonal feed lines, and dual-perturbation elements are introduced within the resonator at symmetrical location. The effects of the size of the perturbation element are studied. A new filter having wider bandwidth and transmission zeros are presented. The proposed filter responses are in good agreement with the simulations and experiments.
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