Amplifiers – With semiconductor amplifying device – Including gain control means
Patent
1992-05-21
1993-06-15
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including gain control means
330133, 455116, H03G 330
Patent
active
052202909
ABSTRACT:
An amplifier which contains two amplifier stages. Each amplifier stage (433,435) utilizes a diode (407) to attenuate the RF input signal (401) and to stabilize the bias current over temperature. The two amplifier stages (433, 435) are cascaded together. The control voltage inputs are serially coupled through a transistor (423). The transistor (423) shifts the voltage of the control signal (425) down, thereby, shifting the control characteristics and AM characteristics of the first amplifier stage (435) relative to the second amplifier stage (433).
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RCA Technical Notes, A Publication of RCA Princeton, N.J., TN No.: 1258, Sep. 11, 1980, pp. 1-3.
Dailey Kirk W.
Hackbart Rolland R.
Motorola Inc.
Mullins James B.
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