High frequency power amplifier apparatus and power amplifier...

Details High frequency power amplifier apparatus and power amplifier... High frequency power amplifier apparatus and power amplifier...

2005-07-05

2005-07-05

Nguyen, Khanh V. (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S297000

Reexamination Certificate

active

06914481

ABSTRACT:
In a high frequency power amplifier apparatus of the present invention, ground terminal (17e) of automatic power control circuit (17) is connected to ground terminal (13c) of power amplifier (13) through inductive reactance element (18) for preventing frequency supplied from power amplifier (13). Noise occurring from automatic power control circuit (17) can be prevented from disturbing power amplifier (13).

REFERENCES:
patent: 6307429 (2001-10-01), Olgaard
patent: 6384686 (2002-05-01), Ueno et al.
patent: 6417729 (2002-07-01), Lemay et al.
patent: 6636114 (2003-10-01), Tsutsui et al.
patent: 2703667 (1997-10-01), None
patent: 2996170 (1999-10-01), None
patent: 10-51323 (1999-12-01), None
patent: 2001-345648 (2001-12-01), None
International Search Report corresponding to application No. PCT/JP02/12118 dated Mar. 11, 2003 (English translation provided).

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