Amplifiers – With plural amplifier channels – Redundant amplifier circuits
Patent
1980-03-06
1982-02-09
Tokar, Michael J.
Amplifiers
With plural amplifier channels
Redundant amplifier circuits
H03F 368
Patent
active
043152228
ABSTRACT:
The present invention relates to an N-way non-hybrid power combiner arrangement for microwave amplifiers. In operation, sensing means (19.sub.1, 19.sub.2, . . . , 19.sub.N) are coupled in a one-to-one relationship with the individual amplifiers (12.sub.1, 12.sub.2, . . . , 12.sub.N) to monitor amplifier performance and sense amplifier failure. In one embodiment of the present invention, shorting devices (20.sub.1, 20.sub.2, . . . , 20.sub.N) are disposed adjacent to the outputs of the individual amplifiers and coupled to the associated sensing means in a one-to-one relationship. In an alternative embodiment, open-circuiting devices (30.sub.1, 30.sub.2, . . . , 30.sub.N) are disposed at a predetermined distance from the amplifier outputs along the transmission lines (24.sub.1, 24.sub.2, . . . , 24.sub.N) and coupled to their respective sensing means. Upon identifying amplifier failure, the sensing means coupled to that particular amplifier activates either its associated short-circuiting or open-circuiting device, which in turn uncouples the failed amplifier and the transmission line associated therewith.
REFERENCES:
patent: 3445782 (1969-05-01), Sonkin
patent: 3928806 (1975-12-01), Carter et al.
patent: 3930205 (1975-12-01), Aeppli
patent: 4010426 (1977-03-01), Rambo
patent: 4028632 (1977-06-01), Carter et al.
patent: 4064464 (1977-12-01), Morse
patent: 4068228 (1978-01-01), Vallas
Bell Telephone Laboratories Incorporated
Pfeifle Erwin W.
Tokar Michael J.
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