Amplifiers – With semiconductor amplifying device – Including plural amplifier channels
Reexamination Certificate
2011-01-25
2011-01-25
Pascal, Robert (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including plural amplifier channels
C330S12400D
Reexamination Certificate
active
07876159
ABSTRACT:
A multi-frequency and multi-mode power amplifier is provided. The amplifier has a carrier power amplifier and a peaking power amplifier. The carrier power amplifier receives a first signal and outputs a first amplified signal, in which a first transistor size adjusting unit is included to adjust an equivalent transistor size based on a mode indication signal. The peaking power amplifier receives a second signal and outputs a second amplified signal, in which a second transistor size adjusting unit is included to adjust an equivalent transistor size based on the mode indication signal.
REFERENCES:
patent: 6137355 (2000-10-01), Sevic et al.
patent: 7369822 (2008-05-01), Loraine et al.
patent: 2002/0135425 (2002-09-01), Kim et al.
Chen Cheng-Chung
Hsu Yu-Cheng
Lai Chung-Chi
Wang Shih-Ming
Industrial Technology Research Institute
Jianq Chyun IP Office
Nguyen Khiem D
Pascal Robert
LandOfFree
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