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Miniaturized bandpass filter design using LC resonators on an organic substrate

✍ Scribed by Chien-Hsiang Huang; Chien-Hsun Chen; Chi-Tsung Chiu; Pao-Nan Lee; Tzyy-Sheng Horng; Jian-Yu Li; Cheng-Chung Chen

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

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✦ Synopsis

Abstract

This letter presents very small LC resonator‐based bandpass filters on an organic substrate for wireless system applications. Because of the lack of a fabrication process for high‐capacitance density capacitors on the applicable substrate, the proposed bandpass filter designs are based on either modified‐T or coupled‐resonator prototype. By carefully taking parasitic and coupling effects into account in the filter synthesis procedure, the presented bandpass filter designs can feature themselves with a Chebyshev response plus multiple transmission zeros, resulting in a low‐insertion loss in the passband as well as a high‐attenuation rate in the roll‐off region. Comparison between EM simulation and measurement results shows excellent agreement. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 547–551, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24966

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