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Switchable patterned centre‐conductor CPW filter using RF MEMS
Author(s) -
Mariani Michael A.,
Roy Langis,
Tait R. Niall
Publication year - 2006
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.21524
Subject(s) - coplanar waveguide , conductor , microwave , microelectromechanical systems , band stop filter , optoelectronics , filter (signal processing) , materials science , line (geometry) , electrical engineering , electronic engineering , engineering , low pass filter , telecommunications , geometry , mathematics , composite material
A novel switchable coplanar waveguide (CPW) notch filter is developed using a microelectromechanical system (MEMS) switch element to perturb a patterned CPW centre‐conductor line. The switch element is easily integrated with the CPW due to isolation of DC bias from RF signal paths. An equivalent lumped‐element model has been developed for simulation of the electrical response of the filter. The measured notch frequency was shifted from 24.75 to 22.25 GHz, with greater then 20‐dB rejection in both states. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 935–938, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21524