Power amplifying apparatus for wireless transmitter

Details Power amplifying apparatus for wireless transmitter Power amplifying apparatus for wireless transmitter

1991-08-13

1993-01-26

Dzierzynski, Paul M.

Amplifiers

With semiconductor amplifying device

Including gain control means

330279, 330129, 455126, 455127, H03G 330

Patent

active

051825279

ABSTRACT:
A power amplifying apparatus according to the present invention can provide a stable electric power output with wide range by controlling both of the output amplifier for amplifying the electric power and the pre-amplifier disposed at the front of the output amplifier. Furthermore, in order to avoid the disadvantage that a transmission spectrum is expanded because of no supply of a stable voltage to be supplied to the electric power amplifier, thereby producing a cross-talk, a stabilizing power source circuit is provided to stabilize the voltage between the power amplifier and the power source for supplying the voltage.

REFERENCES:
patent: 3486128 (1969-12-01), Lohrmann
patent: 4570127 (1986-02-01), Tanimoto et al.
patent: 5029298 (1991-07-01), Chiba et al.
patent: 5038112 (1991-08-01), O'Neill
patent: 5043672 (1991-08-01), Youn

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