Amplifiers – With semiconductor amplifying device – Including field effect transistor
Patent
1988-11-23
1989-11-14
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including field effect transistor
330296, H03F 316
Patent
active
048810460
ABSTRACT:
A microwave linear amplifier is described. Its pass band is equal to that of the transistors which constitute it, without being limited by the usual biasing circuits which comprise chokes and capacitors with a narrow pass band. In this amplifier, which has at least one input transistor, the gate bias at neutral point is provided by a BFL type circuit, generally used in logic circuits, the output of which is looped to the input. The input signal is applied both to the inverter transistor of the BFL circuit and to the input transistor. The same BFL circuit used in the amplification stage provides for the self-matching of the stages which can be cascaded.
REFERENCES:
patent: 4612514 (1986-09-01), Shigaki et al.
IEEE Journal of Solid-State Circuits, vol. SC-17, No. 6, Dec. 1982, pp. 1166-1173; D. B. Estreich.
IEEE Transactions on Microwave Theory and Techniques, vol. MTT-33, No. 8, Aug. 1985, pp. 686-692; Y. Imai et al.
Mottola Steven
Thompson Hybrides et Microondes
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