Communications: directive radio wave systems and devices (e.g. – With particular circuit
Patent
1987-12-28
1989-09-26
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
333136, 342374, G01S 1300
Patent
active
048704210
ABSTRACT:
The invention relates to compact means for turning power on and off and regulating that power as it is supplied to a pulsed transmitting module in a phased array radar system. The arrangement comprises an operational amplifier, which compares the voltage across the module with a gated programmable digital voltage reference, and a high bandwidth power transistor serially connected with the load, the conductivity of which is controlled to adjust the load voltage to the reference value. Capacitive coupling prevents burnout of the transmitting module from a sustained "on" signal and a capacitive feedback connection at the operational amplifier limits the rise time of the voltage supplied to the load to avoid ringing. The use of a "switch" in a regulating mode reduces the amount of local storage capacity required to achieve comparable regulation, and leads to a power conditioner for an individual transmitting module, which is both compact and of high performance. The programmable nature of the voltage reference allows for convenient "tapering" of the power supplied from each module to the associated antenna element.
REFERENCES:
patent: 3953853 (1976-04-01), Carter et al.
patent: 4124852 (1978-11-01), Steudel
patent: 4251817 (1981-02-01), Kimura et al.
patent: 4259743 (1981-03-01), Kaneko et al.
patent: 4433313 (1984-02-01), Saint et al.
patent: 4583096 (1984-04-01), Bellman et al.
patent: 4682176 (1987-07-01), Jones
Peil William
Perkins Donald W.
Baker Carl W.
General Electric Company
Jacob Fred
Lang Richard V.
Sotomayor John B.
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