Intermodulation distortion canceller for use in multi-carrier transmitters
First Claim
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1. An apparatus comprising:
- a first transmit chain configured to transmit a first RF signal;
a second transmit chain configured to transmit a second RF signal; and
a canceller configured to output a first leakage cancellation signal that is input to the second transmit chain, and to output a second leakage cancellation signal that is input to the first transmit chain, the canceller generates the first and second leakage cancellation signals from the first and second RF signals or from first and second baseband signals used to generate the first and second RF signals.
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Abstract
An intermodulation distortion canceller for use in multi-carrier transmitters is disclosed. In an exemplary embodiment, an apparatus includes a first transmit chain that transmits a first RF signal, a second transmit chain that transmits a second RF signal, and a canceller that outputs a first leakage cancellation signal that is input to the second transmit chain, and outputs a second leakage cancellation signal that is input to the first transmit chain, the canceller generates the first and second leakage cancellation signals from the first and second RF signals or from first and second baseband signals used to generate the first and second RF signals.
17 Citations
20 Claims
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1. An apparatus comprising:
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a first transmit chain configured to transmit a first RF signal; a second transmit chain configured to transmit a second RF signal; and a canceller configured to output a first leakage cancellation signal that is input to the second transmit chain, and to output a second leakage cancellation signal that is input to the first transmit chain, the canceller generates the first and second leakage cancellation signals from the first and second RF signals or from first and second baseband signals used to generate the first and second RF signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus comprising:
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means for transmitting a first RF signal; means for transmitting a second RF signal; and means for canceling configured to output a first leakage cancellation signal that is input to the means for transmitting the second RF signal, and to output a second leakage cancellation signal that is input to the means for transmitting the first RF signal, the means for canceling generates the first and second leakage cancellation signals from the first and second RF signals or from first and second baseband signals used to generate the first and second RF signals.
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Specification