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Compact dual-mode bandpass filter using defected step-impedance shunt stub

✍ Scribed by Haiwen Liu; Zhichong Zhang; Li Shen; Jing Wan; Liyun Shi; Xuehui Guan

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

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✦ Synopsis

Abstract

A miniaturized bandpass filter (BPF) using dual‐mode defected ground waveguide (DGW) resonator is developed in this letter.The technique with defected step‐impedance shunt stub is applied to enhance the self‐inductance and self‐capacitance of the DGW loop resonator which leads to size reduction. Compared to the conventional design, the central frequency is reduced by 48%. A good agreement between simulation and measurement verifies the validity of this design methodology. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2673–2676, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop26362

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