Monolithic active isolator

Details Monolithic active isolator Monolithic active isolator

1988-09-19

1990-03-13

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307475, 307246, 307581, 307304, H03K 1704, H03K 17687

Patent

active

049085310

ABSTRACT:
A push-pull monolithic active isloator having a pair of MESFETs in common-gate and common-drain (source follower), parallel configuration. These two FETs are the same size and a diode is inserted between the gate of the source follower and the source of the common-gate FET. A D.C. blocking capacitor is included at the output. Another FET is coupled between the input and ground and responsive to a control signal to vary the current in a biasing resistor between the drain and gate of the source follower.

REFERENCES:
patent: 3392341 (1968-07-01), Burns
patent: 4492883 (1985-01-01), Janutka
patent: 4511815 (1985-04-01), Wood
patent: 4633097 (1986-12-01), Dewitt
patent: 4679010 (1987-07-01), Bahl
patent: 4691129 (1987-09-01), Einzinger et al.
Scholoemann, "Circulators for Microwave and Millimeter-Wave Integrated Circuits", Proceedings of the IEEE, vol. 76, No. 2, Feb. 1988, pp. 188-200.
Bahl, "On The Design of an Active Circulator", Microwave and Optical Technology Letters, vol. 1, No. 1, Mar. 1988, pp. 18-20.
Smith, Mark A., "GaAs Monolithic Implemetation on of Active Circulators", 1988 IEEE MTT-S Digest, Mar. 1988, pp. 1015-1016.
Bahl, "The Design of a 6-Port Active Circulator", 1988 IEEE MTT-S Digest, Mar. 1988, pp. 1011-1014.

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