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Electrically and mechanically tunable waveguide filter
Author(s) -
Mias C.,
Tsakonas C.
Publication year - 2004
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.20192
Subject(s) - varicap , microwave , microstrip , materials science , optoelectronics , waveguide , filter (signal processing) , diode , waveguide filter , dielectric , substrate (aquarium) , electrical engineering , engineering , capacitance , prototype filter , low pass filter , telecommunications , physics , oceanography , electrode , quantum mechanics , geology
A novel, hybrid, electrically and mechanically tunable band‐stop waveguide filter is presented. The filter consists of a dielectric substrate on which a ring microstrip element is etched. The mechanical tuning range (the maximum band‐stop frequency that can be attained) is shown to be limited by the distance of the ring element from the conducting waveguide walls. This limitation is overcome by introducing electrical tuning, which is achieved by incorporating varactor diodes on the microstrip ring element. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 13–15, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20192