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A Dual‐Band Bandpass Filter Using Capacitively I/O Coupling
Author(s) -
Lee Jahyeon,
Lim Yeongseog
Publication year - 2013
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.27693
Subject(s) - band pass filter , multi band device , resonator , coupling (piping) , microwave , microstrip , electronic engineering , electronic filter topology , physics , filter (signal processing) , topology (electrical circuits) , prototype filter , optoelectronics , materials science , electrical engineering , engineering , telecommunications , low pass filter , antenna (radio) , metallurgy
A compact microstrip dual‐band bandpass filter with good frequency selectivity was proposed. The proposed dual‐band bandpass filter is configured with two dual‐mode resonator and skew‐symmetrically coupled capacitively input/output coupling. By using these input/output coupling structure, extra transmission zeros can be generated. The dual‐band bandpass filter is designed for 2.4/5.2 GHz WLAN. Experimental measurements are also presented for the validation of the theory. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1823–1825, 2013