Radio frequency transmitter
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United States of America Patent
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Nov 7, 2017
Grant Date -
Jan 26, 2017
app pub date -
Jun 15, 2016
filing date -
Jun 16, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A radio frequency transmitter device, constituted for transmitting a radio frequency signal in a frequency band comprising at least one transmit subband and at least one receive subband, comprises: a transmit chain for processing a transmit signal associated with the at least one transmit subband; a power amplifier for amplifying the transmit signal; an output port for transmitting the amplified transmit signal; a processing unit for calculating, from the transmit signal associated with the at least one transmit subband, a correction signal in the at least one receive subband making use of a power amplifier model modelling the behavior of the power amplifier; and a coupler for adding the correction signal to the amplified transmit signal for cancelling intermodulation products in the amplified transmit signal produced by the power amplifier.
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