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Parallel-coupled microstrip bandpass filters with a wide stopband using spur lines

✍ Scribed by Y. Sung; C. S. Ahn; Y.-S. Kim

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
98 KB
Volume
43
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

In this paper, we propose a novel parallel‐coupled microstrip bandpass filter with a wide stopband. The proposed bandpass filter with spur lines provides a deep and wide stopband because spur lines can provide deep stopband characteristics in some frequency bands. Also, the experimental results show that the transmission coefficients of the proposed filter are lower than −50 dB around the 2^nd^‐ and 3^rd^‐harmonic frequencies. This operation can be obtained without increasing its size while the other features are not degraded. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 43: 9–11, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20359

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