High frequency power amplifier

Details High frequency power amplifier High frequency power amplifier

2007-10-10

2010-06-08

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including frequency-responsive means in the signal...

C330S307000

Reexamination Certificate

active

07733187

ABSTRACT:
A small, high performance high frequency power amplifier enables easily adjusting and switching the impedance. The high frequency power amplifier module includes a first semiconductor chip including one or a plurality of high frequency amplification devices, and a second semiconductor chip including one or more high frequency matching circuit devices and one or more switching devices. The second semiconductor chip includes the matching circuit for a high frequency amplifier device. The second semiconductor chip also includes a circuit composed of a capacitance and a switching device connected in series or parallel to the capacitance. The switching device switches on or off so that the capacitance is connected or is not connected as a part of the matching circuit.

REFERENCES:
patent: 6081694 (2000-06-01), Matsuura et al.
patent: 6281748 (2001-08-01), Klomsdorf et al.
patent: 2003/0076174 (2003-04-01), Tanoue et al.
patent: 2001-251202 (2001-09-01), None

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