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Compact and low-insertion-loss dual-mode patch filter with spur-lines

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

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

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✦ Synopsis

Abstract

A compact microstrip dual‐mode bandpass filter with inserted spur‐lines at the edge of the patch is proposed. In order to obtain a low insertion loss, the proposed filter has no coupling gaps. Also, it has a size reduction of about 45% at the same resonant frequency as compared conventional dual‐mode bandpass filters. Feed lines with offset are applied to ensure a minimal mismatch. From the measured results, the dual‐mode filter has a 0.58‐dB insertion loss at 1.27 GHz with 12% bandwidth. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 43: 33–34, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20366

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