High power, solid state RF pulse generators

Details High power, solid state RF pulse generators High power, solid state RF pulse generators

1991-01-03

1992-10-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

250211J, G02B 2700

Patent

active

051534428

ABSTRACT:
A high power, solid state burst generator for producing RF pulses includes a plurality of transmission lines, such as coaxial cables, having one end connected across a load via a plurality of photoconductive switches, one for each line. The other end of the transmission lines are terminated in open ends and connected to a charging DC voltage. One set of lines is connected to a positive DC voltage +V while other set is connected to a negative DC voltage -V. A laser is coupled to one end of a plurality of fiber optic lines, each having a different length, for simultaneously launching switch pulses thereon. The other ends of the fiber optic lines are each coupled to a different one of the photoconductive switches for closing and opening the switches in a sequential fashion such that the lines are sequentially discharged through the load to generate a cyclic series of pulses.

REFERENCES:
patent: 3555301 (1971-01-01), Hansen
patent: 3558919 (1971-01-01), Olk
patent: 3838278 (1974-09-01), Duguay et al.
patent: 4695733 (1987-09-01), Pesavento
patent: 4822991 (1989-04-01), Riggs et al.
patent: 4870295 (1989-09-01), Rauscher
patent: 4900947 (1990-02-01), Weiner et al.
"Optoelectronic Techniques for Microwave and Millimeter-Wave Applications", ee et al.; IEEE MTT-S Digest pp. 178-181 1985.

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