Title :
Optically fed aperture-coupled microstrip patch antennas
Author :
Svitak, Andrew J. ; Pozar, David M. ; Jackson, Robert W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA
fDate :
1/1/1992 12:00:00 AM
Abstract :
Several techniques are presented for feeding microstrip antennas with RF-modulated lightwave signals via an optical fiber. Lightwave-to-RF conversion is performed in a module containing a photodiode, RF circuitry, and a microstrip antenna element. Three different transmitting configurations at microwave frequencies were designed and tested: passive matching, matching with amplification, and an injection-locked oscillator. In each case, the only connections to the antenna modules were an optical fiber and DC bias lines
Keywords :
antenna feeders; impedance matching; microstrip antennas; optical links; DC bias lines; RF-modulated lightwave signals; fibre optic feed; impedance matching; injection-locked oscillator; matching with amplification; microstrip patch antennas; microwave frequencies; optical fiber; optically fed aperture-coupled antenna; passive matching; photodiode; Diode lasers; Microstrip antennas; Optical coupling; Optical fiber cables; Optical fiber losses; Optical fibers; Optical modulation; Patch antennas; Photodiodes; Radio frequency;
Journal_Title :
Antennas and Propagation, IEEE Transactions on