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Design of a compact CPW bandpass filter used for UWB application

✍ Scribed by Chang-Sin Ye; Yan-Kuin Su; Min-Hang Weng; Hon-Kuan; Jheng-Jie Syu

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

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✦ Synopsis

Abstract

In this paper, design of a compact coplanar‐waveguide (CPW) bandpass filter (BPF) for low band (3–5 GHz) of ultra wide band (UWB) application is presented. The filter has design freedoms to obtain the proper bandwidth by tuning the frequencies of the transmission zeros at the passband edge. The equivalent circuit of the filter is also obtained. The designed filter exhibits a good lower stopband with rejection greater than 20 dB below 2.95 GHz, which can block the interference of other wireless communication system below 3 GHz. The designed CPW‐BPF is investigated numerically and experimentally. Measured results show a good agreement with the simulated analysis. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 298–300, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24028

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