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Dual‐mode DC‐block semicircular‐patch bandpass filter using slot technique
Author(s) -
Liu Haiwen,
Knoechel Reinhard H.,
Sun Lingling,
Schuenemann Klaus F.
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.22676
Subject(s) - band pass filter , microstrip , resonator , microwave , acoustics , filter (signal processing) , dual mode , physics , engineering , electronic engineering , electrical engineering , materials science , telecommunications
Abstract A simple semicircular‐patch bandpass filter (BPF) is presented in this letter. The slot between two semicircular‐patch resonators provides DC blocking and a strong coupling, while the slotted orthogonally feed lines are used to obtain the dual‐mode characteristics. Measurement demonstrates the proposed design methodology and filter. As we know, this is the first report on the microstrip dual‐mode BPF using semicircular‐patch structure. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2261–2263, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22676