Amplifiers – With semiconductor amplifying device – Including gain control means
Reexamination Certificate
2007-01-16
2007-01-16
Choe, Henry (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including gain control means
C330S296000
Reexamination Certificate
active
11117828
ABSTRACT:
A power amplifier comprises an input terminal, an output terminal and a first amplification stage coupled with the input and output terminals. The first amplification stage having a node and a resistive structure coupled with the node. The resistive structure includes a first resistive circuit coupled with the node; and an adaptation circuit coupled with the first resistive circuit such that when the first amplification stage is in a first mode, the resistive structure provides a first effective resistance and when the first amplification stage is in a second mode, the resistive structure provides a second effective resistance.
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Choe Henry
Schwabe Williamson & Wyatt
TriQuint Semiconductor Inc.
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