Tuning circuitry in a communications device
First Claim
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1. A communications device comprising:
- a first antenna port coupled to a signal line;
a second antenna porttransmitter circuitry including first output stage circuitry coupled to the signal line and configured to broadcast a first radio frequency (RF) output signal across the first antenna port;
second output stage circuitry having an input coupled to the signal line and configured to broadcast a second RF output signal generated from the first RF output signal across the second antenna port;
tuning circuitry coupled to the signal line; and
a controller configured to provide a set of tuning signals to the tuning circuitry to adjust a tuning of the tuning circuitry and configured to provide a first control signal to the transmitter circuitry to adjust a first signal level of the first RF output signal on the signal line;
wherein the controller is configured to provide the set of tuning signals to adjust a capacitance and a resistance of the tuning circuitry, and wherein the first antenna port, the transmitter circuitry, the tuning circuitry, and the controller are at least partially integrated on the same integrated circuit.
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Abstract
A communications device is provided. The communications device includes a first antenna port coupled to a signal line, transmitter circuitry coupled to the signal line and configured to broadcast a radio frequency (RF) output signal across the first antenna port, tuning circuitry coupled to the signal line, and a controller configured to adjust a tuning of the tuning circuitry. The first antenna port, the transmitter circuitry, the tuning circuitry, and the controller are at least partially integrated on the same integrated circuit.
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Citations
15 Claims
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1. A communications device comprising:
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a first antenna port coupled to a signal line; a second antenna port transmitter circuitry including first output stage circuitry coupled to the signal line and configured to broadcast a first radio frequency (RF) output signal across the first antenna port; second output stage circuitry having an input coupled to the signal line and configured to broadcast a second RF output signal generated from the first RF output signal across the second antenna port; tuning circuitry coupled to the signal line; and a controller configured to provide a set of tuning signals to the tuning circuitry to adjust a tuning of the tuning circuitry and configured to provide a first control signal to the transmitter circuitry to adjust a first signal level of the first RF output signal on the signal line; wherein the controller is configured to provide the set of tuning signals to adjust a capacitance and a resistance of the tuning circuitry, and wherein the first antenna port, the transmitter circuitry, the tuning circuitry, and the controller are at least partially integrated on the same integrated circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method performed by a controller in a communications device, the method comprising:
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providing a set of tuning signals to adjust a capacitance and a resistance of tuning circuitry coupled on a signal line between transmitter circuitry and an antenna port, the tuning circuitry forming an LC filter with an inductance on the antenna port; detecting a signal level of a radio frequency (RF) output signal generated by the transmitter circuitry on the signal line subsequent to adjusting the tuning; and providing a control signal to the transmitter circuitry to adjust the signal level of the RF output signal on the signal line subsequent to detecting the signal level. - View Dependent Claims (12)
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13. A communications system comprising:
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an antenna; a communications device including; a first antenna port coupled to a signal line; a second antenna port; transmitter circuitry including first output stage circuitry coupled to the signal line and configured to broadcast a first radio frequency (RF) output signal across the first antenna port; second output stage circuitry having an input coupled to the signal line and configured to broadcast a second RF output signal generated from the first RF output signal across the second antenna port; tuning circuitry coupled to the signal line and forming an LC filter in combination with an inductance on the first antenna port; and a controller configured to provide a set of tuning signals to the tuning circuitry to adjust a tuning of the tuning circuitry and configured to provide a first control signal to the transmitter circuitry to adjust a first signal level of the first RF output signal on the signal line; wherein the controller is configured to provide the set of tuning signals to adjust a capacitance and a resistance of the tuning circuitry, and wherein the antenna port, the transmitter circuitry, the tuning circuitry, and the controller are at least partially integrated on the same integrated circuit; and an input/output system configured to communicate with the communications device. - View Dependent Claims (14, 15)
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Specification