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Novel dual‐band filter using slotline and microstrip resonators
Author(s) -
Zhang Xiu Yin,
Chen JianXin,
Xue Quan
Publication year - 2007
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.22348
Subject(s) - resonator , passband , microstrip , filter (signal processing) , microwave , electronic engineering , acoustics , electrical impedance , multi band device , band pass filter , optoelectronics , materials science , physics , electrical engineering , engineering , telecommunications , antenna (radio)
Abstract A novel dual‐band filter using slotline and microstrip resonators is proposed. By introducing slotline resonators on the ground of conventional microstrip resonator, the filter provides two transmission paths for RF signals. Each path generates its own passband. Both microstrip resonator and slotline resonators share the input and output ports without any external impedance‐matching network. Deep rejection between the two passbands is obtained due to a transmission zero located between them. The filter has the advantages of low insertion loss, compact size, and good selectivity. The simulated and measured results are presented and show good agreements. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1080–1081, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI.10.1002/mop.22348