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A compact combline bandpass filter designed in LTCC

✍ Scribed by Tao Yang; Ruimin Xu; Lan Xiao

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

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✦ Synopsis

Abstract

A compact combline bandpass filter structure using low temperature cofired ceramic (LTCC) technology is proposed. The lumped capacitance in traditional combline filter structure is changed to distributed capacitance realized by parallel coupled strip‐lines in LTCC layers. A bandpass filter with this structure is designed, fabricated, and tested in this article. The theoretical and experimental results are presented. The two results match each other well. The results show a relative band width of 5% with the center frequency at 9.6 GHz and a very high suppression out of band. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1897–1900, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23475

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