✦ LIBER ✦

An ultra-wide stopband low-pass filter using dual reverse U-shaped DGS

✍ Scribed by Pai-Yi Hsiao; Ro-Min Weng

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 444 KB
Volume: 50
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.23843

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✦ Synopsis

Abstract

On the basis of the characteristics of defected ground structures (DGSs), a low‐pass filter (LPF) with a sharp rejection and an ultra‐wide stopband is constructed. The proposed LPF comprises of a dual reverse U‐shaped DGS along with two H‐shaped patterns on the ground plane and a microstrip line on the top layer. The attenuations are 2 and 32.8 dB at 3.7 and 3.85 GHz, respectively. The maximum attenuation rate is 205 dB/GHz. The proposed LPF achieves an ultra‐wide stopband with overall 20 dB attenuation from 3.75 GHz up to 20 GHz. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2780–2783, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23843

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