Signal processing circuitry

Details Signal processing circuitry Signal processing circuitry

1979-12-13

1982-09-28

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307310, 307319, 328160, 455108, 332 43B, H03K 326, G06G 716

Patent

active

043520294

ABSTRACT:
Signal processing circuitry, preferably for use in multiplying two input signals, one at RF frequency and one at base-band frequency, which includes a pair of PIN diodes connected in a generally symmetrical circuit configuration using a single bias supply and including a trimming resistor for controlling the current through a selected one of the diodes so that the characteristics of both diodes can be matched over substantially the complete range of control current values therefor. Further, the circuit configuration permits the use of an easy and effective technique for compensating for temperature changes of the circuit during operation.

REFERENCES:
patent: 3019983 (1962-02-01), Philbrick
patent: 3371160 (1968-02-01), Harford
patent: 3492501 (1970-01-01), Allen et al.
patent: 4016516 (1977-04-01), Sauter et al.
patent: 4224583 (1980-09-01), Larkin

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