Premium
Design of a compact CPW bandpass filter used for UWB application
Author(s) -
Ye ChangSin,
Su YanKuin,
Weng MinHang,
Syu JhengJie
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24028
Subject(s) - passband , band pass filter , coplanar waveguide , stopband , microwave , bandwidth (computing) , electronic engineering , wireless , center frequency , filter (signal processing) , prototype filter , engineering , electrical engineering , physics , optoelectronics , materials science , filter design , telecommunications
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