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Dual‐band bandpass filter using dual‐mode resonators
Author(s) -
Lee Jahyeon,
Lim Yeongseog
Publication year - 2011
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.26355
Subject(s) - passband , band pass filter , resonator , electronic engineering , dual mode , microwave , bandwidth (computing) , port (circuit theory) , microstrip , multi band device , transmission (telecommunications) , physics , topology (electrical circuits) , engineering , electrical engineering , telecommunications , antenna (radio)
A compact microstrip dual‐band bandpass filter (DBBPF) with controllable bandwidth for each passband is proposed. Each passband is independently designed using two different dual‐mode resonators. The proposed DBBPF has three transmission zeros. Two transmission zeros are generated by each dual‐mode resonator. An additional transmission zero is generated by input/output port coupling. The DBBPF application is designed for 2.4/5.7 GHz WLAN. Experimental measurements are presented to validate the theory. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2515–2517, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26355