Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1993-05-19
1994-09-27
Hajec, Donald
Communications: radio wave antennas
Antennas
Spiral or helical type
343701, H01Q 136
Patent
active
053510631
ABSTRACT:
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.
REFERENCES:
patent: 4319248 (1982-03-01), Flam
patent: 4329686 (1982-05-01), Mourou
patent: 5028971 (1991-07-01), Kim et al.
patent: 5227621 (1993-07-01), Kim et al.
Didomenico Leo D.
Jasper, Jr. Louis J.
Kim Anderson H.
Weiner Maurice
Youmans Robert J.
DiGiorgio James A.
Hajec Donald
Le Hoang-anh
The United States of America as represented by the Secretary of
Zelenka Michael
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