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Microstrip band rejection filter using open loop resonator
Author(s) -
Jitha B.,
Bybi P. C.,
Aanandan C. K.,
Mohanan P.
Publication year - 2008
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.23415
Subject(s) - microstrip , microwave , resonator , filter (signal processing) , electronic engineering , waveguide filter , transmission line , capacitance , engineering , coupling (piping) , loop (graph theory) , distributed element filter , electrical engineering , acoustics , optoelectronics , materials science , topology (electrical circuits) , m derived filter , physics , prototype filter , telecommunications , filter design , mechanical engineering , mathematics , combinatorics , electrode , quantum mechanics
Design of a compact microstrip band reject filter is proposed. The device consists of an Open Loop Rectangular Resonator (OLRR) coupled to a microstrip line. The transmission line has a U‐bend which enhances the coupling with the OLRR element and reduces the size of the filter. The filter can be made tunable by mounting variable capacitance to the system. Simulated and experimental results are presented. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1550–1551, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23415