UWB Bandpass Filter with One Tunable Notch-Band Based On DGS

An ultra-wideband (UWB) band-pass filter (BPF) with an electronically tunable notch-band based on defected ground structure (DGS) is investigated in this paper. The proposed UWB BPF comprises four folded shunt quarter-wavelength short-circuited stubs, one DGS and a varactor diode with dc bias. The D...

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Bibliographic Details
Published in:Journal of electromagnetic waves and applications 2012-04, Vol.26 (5-6), p.673-680
Main Authors: Wei, F., Chen, L., Shi, X.-W., Gao, C.-J.
Format: Article
Language:English
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Summary:An ultra-wideband (UWB) band-pass filter (BPF) with an electronically tunable notch-band based on defected ground structure (DGS) is investigated in this paper. The proposed UWB BPF comprises four folded shunt quarter-wavelength short-circuited stubs, one DGS and a varactor diode with dc bias. The DGS is studied and employed to generate one desired notched band. The predicted results are compared with measured data, and good agreement is reported.
ISSN:0920-5071
1569-3937
DOI:10.1080/09205071.2012.710788