A novel compact ring dual-mode filter with adjustable second-passband for dual-band applications

In this letter, a novel compact ring dual-mode with adjustable second-passband for dual-band applications are presented. A ring resonator with two different geometric dimensions are derived and designed to have identical fundamental and the first higher-order resonant frequencies, and to establish a...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2006-06, Vol.16 (6), p.360-362
Main Authors: HUANG, Tsung-Hui, CHEN, Han-Jan, CHANG, Chin-Sheng, CHEN, Lih-Shan, WANG, Yeong-Her, HOUNG, Mau-Phon
Format: Article
Language:English
Subjects:
Accuracy
Adjustable
Applied sciences
Band pass filters
Circuit properties
Circuits
Couplings
Dual band
dual-mode
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
filter
Impedance
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwave filters
Microwaves
Passband
Radio frequency
Resonant frequencies
Resonant frequency
Resonator filters
Resonators
Simulation
stepped-impedance-resonator (SIR)
Topology
Transceivers
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Summary:In this letter, a novel compact ring dual-mode with adjustable second-passband for dual-band applications are presented. A ring resonator with two different geometric dimensions are derived and designed to have identical fundamental and the first higher-order resonant frequencies, and to establish appropriate couplings in the structure. Moreover, the proposed filter has smaller size as compared with the basic topology of stopband filters and stepped-impedance-resonator (SIR) filters. The measured filter performance is in good agreement with the simulated response.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2006.875607