Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – Electrical energy storage device – inductor – transformer,...
Patent
1993-08-10
1995-05-09
Lee, Benny T.
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
Electrical energy storage device , inductor, transformer,...
505210, 505700, 505866, 505879, 333 99S, 333 243, 333258, 335216, 336DIG1, H01P 111, H01P 1175
Patent
active
054139830
ABSTRACT:
A tetrahedral junction waveguide switch having a first length of hollow rangular waveguide and a second length of hollow rectangular waveguide adjacent each other with a ferrite rod longitudinally disposed therebetween. A magnetic field is created by a superconducting switching coil placed around the junction of the two lengths of waveguide. The normally magnetically biased ferrite rod permits electromagnetic wave energy to be transmitted through the first and second lengths of waveguide. An open circuit control means selectively and controllably interrupts the current flowing around the superconducting switching coil causing the longitudinal magnetic field to be removed from the normally magnetically biased ferrite rod. The waveguide switch is thereby placed in a cut off, nontransmission, or reflective mode preventing transmission of electromagnetic wave energy. The waveguide switch of the present invention has reduced size and weight and improved switching speed than that of prior waveguide switching devices.
REFERENCES:
patent: 2719274 (1955-09-01), Luhrs
patent: 2908878 (1959-10-01), Sullivan et al.
patent: 4843357 (1989-06-01), Stern et al.
patent: 4933317 (1990-06-01), Johnson, Jr. et al.
Babbitt Richard W.
Koscica Thomas E.
Stern Richard A.
Anderson William H.
Lee Benny T.
The United States of America as represented by the Secretary of
Zelenka Michael
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