Impedance measurement in an active radio frequency transmitter

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United States of America Patent

PATENT NO 8452245
APP PUB NO 20120170632A1
SERIAL NO

13412661

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Abstract

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A transmitter and method for determining impedance measurement in an active radio frequency transmitter of an antenna are provided. Voltage and current samples are obtained from a modulating signal delivered to an antenna. The voltage and current samples are converted from analog to digital format, and decimation occurs to reduce the number of samples. Complex demodulation is performed of each of the voltage and current samples to baseband levels and decimation of the voltage and current samples is performed to reduce the number of samples. An impedance estimate can then be estimated from the voltage and current samples.

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Patent Owner(s)

Patent OwnerAddress
NAUTEL LIMITEDHACKETT'S COVE NS B3Z 3J4

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Walker, Brian Halifax, CA 67 786

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