Gallium arsenide antenna switch having voltage multiplier bias c

Details Gallium arsenide antenna switch having voltage multiplier bias c Gallium arsenide antenna switch having voltage multiplier bias c

1990-05-02

1991-09-10

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307242, 307112, 455277, 455 78, 333103, H01P 115

Patent

active

050476742

ABSTRACT:
A voltage multiplier rectifier filter circuit comprising capacitors C3 and C4 and diodes D1 and D3 multiples, rectifies and filters the voltage at an input terminal (T1) of the switch. A diode (D2) is connected to the output of the multiplier-rectifier-filter circuit to provide a lesser bias voltage in the absence of a signal at the input terminal (T1). Four transistors (Q1-Q4) switch this bias voltage ON and OFF to the gates of four GaAs transistors (S1-S4). The GaAs transistors selectively couple signals between the input and output signal terminals (T1-T4) of the switch.

REFERENCES:
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patent: 4367421 (1983-01-01), Baker
patent: 4656364 (1987-04-01), Yokogawa et al.
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patent: 4803447 (1989-02-01), Schultz et al.
patent: 4920285 (1990-04-01), Clark et al.
patent: 4987392 (1991-01-01), Clark et al.
Product Technology, Microwave Inc., Asbury Park, N.J., pp. 137 through 140 "MMIC Switch Couples Inputs From DC to 6 GHz", Microwaves & RF-Dec. 1987.

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