Power amplifier

Details Power amplifier Power amplifier

2007-11-30

2009-10-20

Nguyen, Patricia (Department: 2817)

Amplifiers

Combined with automatic amplifier disabling switch means

C330S12400D, C330S310000

Reexamination Certificate

active

07605648

ABSTRACT:
A power amplifier according to the present invention is operated by switching a main power amplifier and a subsidiary power amplifier. The idle current of the subsidiary power amplifier is smaller than the idle current of the main power amplifier. Each of the main power amplifier and the subsidiary power amplifier has a former amplification element for amplifying RF signals, a latter amplification element for amplifying output signals from the former amplification element, a former bias circuit for driving the former amplification elements, and a latter bias circuit for driving the latter amplification elements, respectively. The interval between the latter amplification element of the main power amplifier and the latter amplification element of the subsidiary power amplifier is not more than 100 μm. The interval between the latter amplification element of the main power amplifier and the latter bias circuit of the subsidiary power amplifier is not less than 200 μm.

REFERENCES:
patent: 6204731 (2001-03-01), Jiang et al.
patent: 6225866 (2001-05-01), Kubota et al.
patent: 6448859 (2002-09-01), Morizuka
patent: 6741483 (2004-05-01), Stanley
patent: 6946913 (2005-09-01), Moriwaki et al.
patent: 7098740 (2006-08-01), Kondo et al.
patent: 7227418 (2007-06-01), Makioka
patent: 7345537 (2008-03-01), Apel et al.
patent: 7400202 (2008-07-01), Yamamoto et al.
patent: 7417508 (2008-08-01), Quaglietta
patent: 2006/0138460 (2006-06-01), Sasaki et al.
patent: 2007/0012949 (2007-01-01), Kawashima et al.
patent: 2007/0115062 (2007-05-01), Yamamoto et al.
patent: 2001-237319 (2001-08-01), None
patent: 2001-274636 (2001-10-01), None
patent: 2004-194063 (2004-07-01), None
patent: 2004-343244 (2004-12-01), None
patent: 2005-295057 (2005-10-01), None
patent: 2006-186159 (2006-07-01), None
patent: 2007-036138 (2007-02-01), None
patent: 2007-134768 (2007-05-01), None
Sahu, B., et al., “A High-Efficiency Linear RF Power Amplifier With a Power-Tracking Dynamically Adaptive Buck-Boost Supply”, IEEE Tans. MTT 52(1):112-120 (2004).

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