Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Reexamination Certificate
2006-11-21
2006-11-21
Moe, Aung (Department: 2618)
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
C455S115100, C330S285000
Reexamination Certificate
active
07139538
ABSTRACT:
A high-frequency power module as a component of a radio communication system capable of performing communications in two frequency bands such as GSM and DCS and has a first transistor for output detection for receiving a signal which is the same as an input signal of a first power amplification transistor for amplifying a high frequency signal on the GSM side and a first current mirror circuit for passing current proportional to current of the transistor. A second transistor for output detection for receiving an input signal of a second power amplification transistor for amplifying a high frequency signal on the DCS side is also provided as is a second current mirror circuit for passing current proportional to current of the transistor. Conversion of current transferred from the first and second current mirror circuits to voltage is shared by the GSM and DCS.
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Adachi Tetsuaki
Akamine Hitoshi
Ono Seikou
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Moe Aung
Renesas Technology Corp.
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