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

✍ Scribed by Min-Hang Weng; Chihng-Tsung Liauh; Hung-Wei Wu; Steve Ramírez Vargas; Ru-Yuan Yang

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
198 KB
Volume
51
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

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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