US Government As Represented by the Secretary of the Army

Leo D Didomenico

Anderson H Kim

Louis J Jasper, Jr

Maurice Weiner

Robert J Youmans

Thomas E Koscica

A photon triggered RF radiator that is composed of a photoconductive subste having a ground plane electrode on its bottom surface and a top surface electrode having separate sections to perform energy storage and energy radiation functions. The energy storage section has a bulk-type photoconductive switch position therein such that any energy stored in the energy storage section of the top surface electrode is instantaneously discharged through the substrate to the ground plane, thus causing a pulse of nanosecond pulsewidth dimension to radiate from the energy radiation section of the top surface electrode.

Photon-triggered RF radiator using bulk type switching

A photoconductive switch coupled to an energy storage device wherein the tch is comprised of photoconductive semiconductor material while the energy storage device comprises two spiral metalized arms that make up a spiral antenna. The photoconductive switch is electrically connected to the storage device to facilitate fast discharge of the stored energy through a load. A variation comprises a storage device comprising two separate pieces of substrate material each having a spiral metalized arm. The separate pieces being connected by highly dielectric material to form a spiral antenna ultra wideband radiator.

Ultra-wideband high power photon triggered frequency independent

A photoconductive switch coupled to an energy storage device wherein the tch is comprised of photoconductive semiconductor material while the energy storage device comprises two quasi-radial transmission line including a different material, i.e. a dielectric storage medium. The photoconductive semiconductor gallium arsenide switch is electrically connected to two quasi-radial transmission lines formed in part by layers of metallization configured in a quasi-radially shaped pattern upon the energy storage device. A variation comprises a photoconductive semiconductor gallium arsenide wafer sandwiched between two quasi-radial transmission lines so that the semiconductor gallium arsenide wafer serves as substrate, energy storage medium, and photoconductive switch.

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Spotswood, NJ, United States of America

Leo D Didomenico