Title :
Optically Controlled Frequency-Reconfigurable Microstrip Antenna With Low Photoconductivity
Author :
Pendharker, Sarang ; Shevgaonkar, R.K. ; Chandorkar, A.N.
Author_Institution :
Electr. Eng. Dept., Indian Inst. of Technol. Bombay, Mumbai, India
Abstract :
In this letter, novel designs for optically switching the resonant frequency of a microstrip patch antenna via photoconductive switches are proposed, and design considerations for maximizing frequency switching ratio with finite photo-conductance are investigated. Furthermore, a configuration to switch the resonant frequency with low switch conductance is proposed for cheap and easy fabrication of a frequency-reconfigurable antenna that can be operated with low optical power. Experimental verification of the low-power configuration is presented.
Keywords :
microstrip antennas; microwave photonics; photoconducting switches; finite photo conductance; frequency reconfigurable antenna; frequency reconfigurable microstrip antenna; low photoconductivity microstrip antenna; low switch conductance; microstrip patch antenna; optically controlled microstrip antenna; optically switching; photoconductive switch; resonant frequency switching; Admittance; Microstrip antennas; Optical control; Optical switches; Patch antennas; Resonant frequency; Frequency reconfiguration; microstrip antenna; optical control; photoconductive switch; reconfigurable antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2296621
