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Design of a miniaturized microstrip dual-mode dual-band bandpass filter

✍ Scribed by Jianpeng Wang; Jia Ni; Jie-Bin Pan; Lei Ge; Yong-Xin Guo

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
301 KB
Volume
53
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A miniaturized microstrip dual‐mode dual‐band bandpass filter is presented in this article. The filter is constructed by two slow‐wave dual‐mode resonators and two feed lines. To excite dual‐mode response, each dual‐mode resonator is coupled by an L‐shape feed line. To realize multiple transmission zeroes outside the two passbands, parasitic coupling between two feed lines are also introduced. With these considerations, the proposed dual‐mode dual‐band filter has the properties of compact size, high selectivity, and two transmission poles inside each passband. Demonstrator filter is designed and validated with good agreement between the full‐wave electromagnetic simulations and measurements. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26056

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