Switch adaptable radio frequency amplifier

Details Switch adaptable radio frequency amplifier Switch adaptable radio frequency amplifier

1992-03-02

1993-06-01

Mullins, James B.

Amplifiers

Combined with automatic amplifier disabling switch means

330285, 330148, 455 86, H03G 300, H04B 140

Patent

active

052163784

ABSTRACT:
A radio frequency variable gain amplifier (204) has a plurality of outputs. The amplifier (204) includes a transistor amplifier (330) having a plurality of switchable fixed gain states for amplifying an oscillator signal. The amplifier (204) includes a biasing circuit (302, 306, 312, and 316) for selectively biasing the transistor amplifier (330) to produce the plurality of switchable fixed gain states. The biasing circuit (302, 306, 312, and 316) includes switches (310 and 320) for switching between the switchable fixed gain states of the transistor amplifier (330).

REFERENCES:
patent: 3469192 (1969-09-01), Tomono
patent: 5060294 (1991-10-01), Schwent et al.

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