High frequency double pole double throw switch

Details High frequency double pole double throw switch High frequency double pole double throw switch

1992-11-23

1994-05-10

Pascal, Robert J.

Wave transmission lines and networks

Plural channel systems

Having branched circuits

257390, 257272, 333262, 307571, H01P 110, H01P 512

Patent

active

053111567

ABSTRACT:
A DPDT switch includes first and second output signal electrodes opposite each other in an active region on a semiconductor substrate, a third output signal electrode opposite the second output signal electrode in the same active region, and first and second input signal electrodes disposed respectively between the first and second output signal electrodes and between the second and third output signal electrodes, and first control signal electrodes respectively disposed between the first input signal electrode and the first output signal electrode and between the second input signal electrode and the second output signal electrode for switching a signal between the input and output signal electrodes, and second control signal electrodes respectively disposed between the first input signal electrode and the second output signal electrode and between the second input signal electrode and the third output signal electrode for switching an input signal from the first and second input signal electrodes to the second and third output signal electrodes. The DPDT switch including an FET switch in the single active region enables a large reduction in the area of a switching circuit and miniaturization of the device to a large extent.

REFERENCES:
patent: 4456888 (1984-06-01), Ayasli
patent: 4939485 (1990-07-01), Eisenberg
patent: 5006816 (1991-04-01), Koide
patent: 5023677 (1991-06-01), Truitt
"Using GaAs MMICs as Control Devices" by Pengelly pp. 18-22 MSN Apr. 1989.
"Microwave Switching With GaAs FETs" by Ayasli Microwave Journal Nov. 1982.
"Multi Gate FET Power Switches" by F. McGrath et al. Applied Microwave Summer 1991.
Schindler et al, "A 2-18 GHz Non-Blocking Active 2.times.2 Switch", IEEE GaAs Symposium, 1989, pp. 181-183.

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