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A compact microstrip bandpass filter using folded parallel-coupled-lines

✍ Scribed by Jian-Zhong Gu; Xiao-Wei Sun

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
402 KB
Volume
48
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A bandpass filter using spiral parallel‐coupled‐lines is presented for size reduction. Based on the conventional parallel‐coupled‐line structures, different folded number and coupling structures are proposed for comparison. The band‐pass filter with three cells in series is constructed operating from 1.8 GHz to 2.5 GHz. The upper stop‐band suppression at 200 MHz offset is more than 30 dB. The band‐pass filter size is 70% smaller. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2328–2330, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21949

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