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Tunable bandstop filter-based defected ground structure using a metal plate

✍ Scribed by Yongje Sung

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 265 KB
Volume: 51
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.23995

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✦ Synopsis

Abstract

To obtain the electromagnetic bandgap structure with a wide stopband, this article presents a novel approach for realizing a tunable bandstop filter using defected ground structure (DGS) section. To change the rejection band of DGS section, a movable conducting plate is applied in parallel over an H‐shaped defect on the ground plane. The measured results show that the proposed bandstop filter with one cell etched hole has a 30 dB rejection bandwidth of 27.96%, whereas a conventional DGS section of the same dimension has a 30 dB rejection bandwidth of below 1%. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 160–163, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23995

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