Noise cancellation for antenna module
First Claim
Patent Images
1. An antenna module, comprising:
- an antenna placed on a circuit connector and configured to receive an electromagnetic signal in a signal path;
an amplifier configured to amplify the received electromagnetic signal and provide the amplified signal at a first node;
a detector placed on the circuit connector with the antenna to correlate an interference signal associated with the received electromagnetic signal;
a noise canceller coupled to the detector, the noise canceller configured to cancel the interference signal from the amplified signal at the first node, to provide an interference-cancelled amplified signal; and
a filter configured to receive the interference-cancelled amplified signal and provide a filtered signal output.
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Abstract
An antenna module with a detector and an associated canceller is disclosed. The detector may also detect interference and spurs. In one embodiment, an antenna module can include: an antenna configured to receive an electromagnetic signal in a signal path; an amplifier configured to amplify the received electromagnetic signal, and to provide the amplified signal at a first node; a filter configured to receive the amplified signal from the first node, and to provide a filtered signal output therefrom; and a noise canceller and a detector integrated in the signal path at the first node.
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Citations
20 Claims
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1. An antenna module, comprising:
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an antenna placed on a circuit connector and configured to receive an electromagnetic signal in a signal path; an amplifier configured to amplify the received electromagnetic signal and provide the amplified signal at a first node; a detector placed on the circuit connector with the antenna to correlate an interference signal associated with the received electromagnetic signal; a noise canceller coupled to the detector, the noise canceller configured to cancel the interference signal from the amplified signal at the first node, to provide an interference-cancelled amplified signal; and a filter configured to receive the interference-cancelled amplified signal and provide a filtered signal output. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of canceling noise using integrated components in an active antenna module, the method comprising:
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receiving, by an antenna placed on a circuit connector, an electromagnetic signal in a signal path; amplifying and filtering the received electromagnetic signal to provide an amplified signal; detecting, by a detector placed on the circuit connector, noise, spurs, or other interference to correlate an interference signal received by the antenna; canceling, by a noise canceller coupled to the detector, the interference signals from the amplified signal at the first node, to provide an interference-cancelled amplified signal; and filtering the interference-cancelled amplified signal. - View Dependent Claims (8)
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9. An antenna module, comprising:
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an antenna placed on a circuit connector and configured to receive an electromagnetic signal in a signal path; circuitry placed on the circuit connector and configured to amplify the received electromagnetic signal and provide an amplified signal; a noise canceller and detector placed on the circuitry and configured to detect noise associated with the received electromagnetic signal and cancel the noise from the amplified signal, to provide an interference-cancelled amplified signal; and a filter configured to receive the interference-cancelled amplified signal and provide a filtered signal output. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification