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Design of microstrip bandpass and lowpass filters using coupling matrix method and a new hairpin defected ground structure

✍ Scribed by Ahmed Boutejdar; Abbas Omar

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
416 KB
Volume
50
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

In this work, we present a novel compact hairpin defected ground structure (DGS) bandpass and lowpass microstrip filter using two hairpin‐slots etched in the ground plane. A compact microstrip BPF using coupled DGS resonators is designed using coupling matrix method. The designed BPF showed very wide stopband with two transmission zeros. Furthermore, a simple technique to transform the designed BPF to a LPF was presented. The BPF was fabricated and measured. The measurement results showed good agreement with the theoretical and simulation results. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2898–2901, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23794

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