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Compact bandpass filter using open‐loop resonators with capacitive loading
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.22035
Subject(s) - band pass filter , resonator , capacitive sensing , filter (signal processing) , electronic engineering , microwave , electronic filter topology , prototype filter , m derived filter , waveguide filter , materials science , optoelectronics , acoustics , engineering , physics , electrical engineering , low pass filter , telecommunications
A novel compact microstrip bandpass filter, based on open‐loop resonators with capacitive loading, is presented in this paper. The new filter has the advantages of compact size together with sharp rejection. Compared with the conventional filters using square open‐loop resonator, the proposed filter has a size reduction of 45%. A demonstration filter was designed, fabricated, and measured. Theoretical and experimental results are presented and show good agreement. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 83–84, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22035