Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Reissue Patent
2008-01-22
2008-01-22
Gesesse, Tilahun (Department: 2618)
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
C455S126000, C455S115100
Reissue Patent
active
RE040031
ABSTRACT:
A temperature compensation technique employing a directional coupler providing signals from a forward sample port to a detector circuit for providing a DC output representative of transmitted power. A temperature compensation circuit including a current source is coupled to a reverse sample port of the directional coupler for providing a compensating DC bias current via said coupler, to the detector circuit. The detector circuit and the temperature compensation circuit each include matched diodes and corresponding circuits for tracking temperature and offsetting the effects of temperature on the DC output of the detector circuit.
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Gesesse Tilahun
Sidley Austin LLP
Uniden America Corporation
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