A compact microstrip dual-wideband bandpass filter using ladder stub resonator

In this article, we present a novel compact dual wideband bandpass filter (BPF) by using a new structure of ladder stub resonator (LSR). The proposed LSR can produce attenuation poles to form low loss and dual‐wideband bandpass response. By tuning the structure parameters of LSR, the dual‐band chara...

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Bibliographic Details
Published inMicrowave and optical technology letters Vol. 51; no. 6; pp. 1391 - 1393
Main Authors Weng, Min-Hang, Liauh, Chihng-Tsung, Wu, Hung-Wei, Vargas, Steve Ramírez, Yang, Ru-Yuan
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.06.2009
Subjects
bandpass filter
dual-wideband
ladder stub resonator
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Summary:In this article, we present a novel compact dual wideband bandpass filter (BPF) by using a new structure of ladder stub resonator (LSR). The proposed LSR can produce attenuation poles to form low loss and dual‐wideband bandpass response. By tuning the structure parameters of LSR, the dual‐band characteristic can be controlled. The measured 3 dB fractional bandwidth (FBW) at first and second passbands are 41.5% and 25.7%, respectively. The experiment results of the fabricated filter agree well with the electromagnetic (EM) simulation. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1391–1393, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24392
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ISSN:0895-2477
1098-2760
DOI:10.1002/mop.24392