Method and apparatus for compensating and improving...

Details Method and apparatus for compensating and improving... Method and apparatus for compensating and improving...

2006-09-05

2006-09-05

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including plural amplifier channels

C330S302000, C330S051000

Reexamination Certificate

active

07102444

ABSTRACT:
A method and apparatus for an amplifier, such as a radio frequency amplifier embodiment as an integrated circuit is disclosed. Embodiments provide for operating with good energy efficiency at multiple power levels. Resonant components act to provide consistent operating parameters over the wide range of power levels used. A compensating impedance is switched into or out of circuit in high power mode to improve the match that would pertain without the compensation. Improved compensation and linearity may be provided using features disclosed. The invention may operate in the microwave region or at other RFs.

REFERENCES:
patent: 6111459 (2000-08-01), Nishijima et al.
patent: 6188877 (2001-02-01), Boesch et al.
patent: 6501331 (2002-12-01), Adar
patent: 6744312 (2004-06-01), White et al.
patent: 6806767 (2004-10-01), Dow
patent: 6954623 (2005-10-01), Chang et al.

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