Optically activated hybrid pulser with patterned radiating element
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsAnderson H. Kim, Maurice Weiner, Louis J. Jasper, Jr., Thomas E. Koscica, Robert J. Youmans
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Abstract
A high voltage sub-nanosecond pulser and radiator including a radial transsion line consisting of a dielectric member sandwiched between two patterned layers of metallization, one of which comprises a plurality of radiating elements. A photoconductive semiconductor gallium arsenide switch is embedded in the dielectric member which has a constant thickness. The other layer of metallization includes an apertured grid adjacent one surface of the switch for application of an energization pulse of laser light.
Claims17
An integrated nanosecond signal generator and radiator apparatus comprising:
- an electrical energy storage device coupled to a source of electrical voltage and including a transmission line comprised of a dielectric member sandwiched between upper and lower radial type electrical conductors which are disposed parallel to each other;
- a photoconductive semiconductor switch coupled to said energy storage element and centrally located beneath said upper conductor, said switch becoming conductive upon the application of a predetermined type of light energy so as to cause a high amplitude, narrow output video pulse of nanosecond pulse width dimensions to be generated at the radial center of said upper and lower radial type conductors, and
- wherein one of said radial type conductors further comprises antenna mans for radiating the RF energy of the generated video pulse, and
- wherein said upper conductor includes aperture means thereon for the application of light energy to said switch.
An integrated nanosecond signal generator and radiator apparatus comprising:
- an electrical energy storage device coupled to a source of electrical voltage and including a transmission line comprised of a dielectric member sandwiched between upper and lower radial type electrical conductors which are disposed parallel to each other, one of said radial type conductors further comprising an antenna means for radiating the RF energy of the generated video pulse, said antenna means having a pattern of metallization which has a plurality of stripline antenna element;
- a photoconductive semiconductor switch coupled to said energy storage element and centrally located beneath said upper conductor, said switch becoming conductive upon the application of a predetermined type of light energy so as to cause a high amplitude, narrow output video pulse of nanosecond pulsewidth dimensions to be generated at the radial center of said upper and lower radial type conductors, and
- wherein said upper radial type conductor includes aperture means thereon for the application of light energy to said switch.
Dependencies are inferred from the claim text.