Controllable reverse double U-shaped defected ground structure for bandpass filter with improved out-of-band performances

This letter presents a bandpass filter with low insertion loss and suppression of spurious resonance, which is implemented by using the controllable reverse double U‐shaped defected ground structure (RDU‐DGS) cells. The proposed RDU‐DGS cells are with the advantage of good controllability of band re...

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Bibliographic Details
Published in:Microwave and optical technology letters 2008-12, Vol.50 (12), p.3055-3057
Main Authors: Lin, Wen-Jeng, Chen, Lih-Shan, Houng, Mau-Phon
Format: Article
Language:English
Subjects:
band rejections
controllability
reverse double U-shaped defected ground structure
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Summary:This letter presents a bandpass filter with low insertion loss and suppression of spurious resonance, which is implemented by using the controllable reverse double U‐shaped defected ground structure (RDU‐DGS) cells. The proposed RDU‐DGS cells are with the advantage of good controllability of band rejections without occupying too much area. The measured results of the proposed bandpass filters are in good agreement with simulated ones. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3055–3057, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23871
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.23871