Telecommunications – Transmitter – With electrical protection of transmitter circuit or operator
Patent
1988-07-18
1989-11-21
Safourek, Benedict V.
Telecommunications
Transmitter
With electrical protection of transmitter circuit or operator
455115, 330289, H01Q 1112
Patent
active
048827673
ABSTRACT:
A stabilized transmitter includes a gain converter that varies its gain according to an electrical signal; a power amplifier that amplifies a high-frequency signal passed through the gain converter; and a compensator having a temperature sensor which detects the temperature of the power amplifier for producing from a detection result of the temperature sensor the electrical signal applied to the gain converter so as to thereby to compensate for variations of the gain of the power amplifier caused by temperature variations. The compensator is adjusted in advance so that the gain of the power amplifier at a reference temperature becomes a predetermined value.
REFERENCES:
patent: 4158180 (1979-06-01), Challen
patent: 4563775 (1986-01-01), Yokosuka
patent: 4710815 (1987-12-01), Douglas et al.
Revised Satellilte Communication, p. 166, Corona Publishing Co., 1985.
Microwave Circuit for Communications, p. 371, The Institute of Electronics and Communication Engineers, 1981.
1986 Conference of the Institute of Electronics, Information and Communication Engineers, Regime p.3-264, P.3-265.
Fujisaki Hirotaka
Machida Takashi
Miyake Kou
Mouri Hiroshi
Jorgenson Frederic R.
Matsushita Electric - Industrial Co., Ltd.
Safourek Benedict V.
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