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Optically induced conductivity in silicon: An active control technique for antennas
Author(s) -
Collett Michael A.,
Gamlath Chris D.,
Cryan Martin J.
Publication year - 2016
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.29713
Subject(s) - reconfigurability , microwave , optoelectronics , conductivity , materials science , diode , reconfigurable antenna , polarization (electrochemistry) , silicon , laser , radiation , dielectric , antenna (radio) , optics , pin diode , electrical engineering , physics , radiation pattern , engineering , antenna efficiency , telecommunications , chemistry , quantum mechanics
We present a technique using a laser diode to actively tune a Franklin Array type antenna. We investigate the effect of directly illuminating the silicon dielectric to generate free charge carriers, increasing the conductivity of illuminated regions. Measurements and simulated results show reconfigurability of radiation patterns, resonant frequencies and polarization. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:994–998, 2016