Title :
Optically Reconfigurable Dual-Band Compact Branch-Line Couplers
Author :
Draskovic, Drazen ; Budimir, D.
Author_Institution :
Wireless Commun. Res. Group, Westminster Univ., London
Abstract :
Reconfigurable, optically tuned dual-band branch-line couplers with photoconducting switches are presented. Tunability is achieved by increasing the power of the laser applied to the highly resistive silicon wafer and changing the properties of silicon under optical illumination. A frequency shift of 30% is achieved from all switches off to all switches on in both frequency bands.
Keywords :
optical couplers; photoconducting switches; dual-band compact branch-line couplers; highly resistive silicon wafer; optically reconfigurable couplers; photoconducting switches; branch-line; coupler; dual-band; optically reconfigurable;
Conference_Titel :
Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on
Print_ISBN :
978-0-86341-842-6
