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Optically controlled frequency reconfigurable band stop filter with multifrequency switching
Author(s) -
Pendharker Sarang,
Shevgaonkar Raghunath K.,
Chandorkar Arun N.
Publication year - 2014
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.28297
Subject(s) - band stop filter , microwave , multipole expansion , filter (signal processing) , transmission line , electronic engineering , transmission (telecommunications) , optoelectronics , materials science , electrical engineering , engineering , physics , low pass filter , telecommunications , quantum mechanics
ABSTRACT A novel technique of optically switching the notch frequency of a band stop filter using photoconductive switch is presented. The effect of finite switch photoconductance on the frequency response and the design limitations is analyzed using transmission line model. The proposed design is generalized for multifrequency switching and multipole filter responses. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1204–1211, 2014