STRUCTURALLY EMBEDDED PHOTOCONDUCTIVE SILICON BOWTIE ANTENNA

We report the generation of 1.5-3.0-GHz electromagnetic radiation by a photoconductive bowtie antenna in a continuous-wave (CW) mode. The se miconductor bowtie element was made of silicon, and activated by a sem iconductor laser beam delivered through a novel light waveguide system . We observed for the first time of our knowledge the VSWR resonance a nd a near copper-performance (<5 dB) with the optical power density as low as 1.0 W/cm(2). Further reduction of the optical power requiremen t is possible and will be tentatively presented with the aim of achiev ing the goal of less than 0.1 W/cm(2).