FET switch for high frequency signals

Details FET switch for high frequency signals FET switch for high frequency signals

1984-12-18

1986-12-09

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

307571, 178 70R, H04Q 900

Patent

active

046283072

ABSTRACT:
A solid state switching network includes three FET switches or devices arranged in a substantially "T" (or inverted "T") configuration. The network is controlled so that in an "OFF" or non-conducting state two of the FET switches are "OFF" and one is on. The high "OFF" impedance of the two FETs work against the low "ON" impedance of the third FET to provide an open circuit between the input and output of the switching network. The open circuit has greater isolation than is feasible with conventional circuits. The switching network or module is used in several configurations to couple data terminal equipment (DTE) to a communications highway.

REFERENCES:
patent: 4255741 (1981-03-01), Peterson
patent: 4417242 (1983-11-01), Bapst
patent: 4435704 (1984-03-01), Hashimoto
patent: 4435705 (1984-03-01), Stevens
patent: 4438356 (1984-03-01), Fleischer
patent: 4551634 (1985-11-01), Takahashi et al.

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