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Compact ultra‐wideband bandpass filter with notch band based on the impedance matching method
Author(s) -
Trabelsi Mohamed,
Taibi Abdelkader,
Slimane Abdelhalim,
Saadi Abdelhalim A.,
Tahar Belaroussi Mohand,
Raskin JeanPierre
Publication year - 2016
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.30004
Subject(s) - stub (electronics) , band pass filter , impedance matching , electronic engineering , ultra wideband , center frequency , band stop filter , transmission line , microwave , cutoff frequency , electrical impedance , wideband , acoustics , materials science , electrical engineering , engineering , physics , filter (signal processing) , low pass filter , telecommunications
In this work, a new ultra‐wideband (UWB) bandpass filter (BPF) with notch band (NB) at 5–6 GHz is presented. The design is performed using the impedance matching method based on optimization of objective function defined in the frequency range 3.1–10.6 GHz. The filter structure is composed of uniform transmission line loaded, at its center, with stepped impedance stub to generate two transmission zeros at cutoff frequencies, and uniform transmission line stub for NB purpose. The fabricated filter has a compact size of 306.17 mm 2 and fulfills the UWB BPF specifications with a sharp selectivity and an efficient cancellation of two Wireless Local Area Network frequencies (5.2 and 5.8 GHz). © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2176–2178, 2016