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Design of a compact, wide stopband microstrip band-pass filter

✍ Scribed by Lin Peng; Cheng-li Ruan; Chao-yuan Ding; Mao-hui Yang

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
181 KB
Volume
52
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

We proposed a compact microstrip band‐pass filter with wide stopband in this article.Microstrip gap and interdigital capacitor combine with stub inductors shorted to the ground plane by via were used to take advantage of different aspects of left‐handed behavior to achieve compact size and wide stopband characteristics. The designed filter has a compact structure with overall dimensions of 20 mm by 17.05 mm, a 3‐dB bandwidth of 25.2% at 1.19 GHz, insertion loss of −3 dB, attenuation greater that 60 dB in the lower stopband and greater that 27 dB up to 5.2 times the centre frequency. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:830–833, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25061

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