Concurrent transmit and receive

摘要

The disclosure is directed to a circuit arrangement and method that provide efficient concurrent transmit and receive, transmit only and receive only of wireless signals. In one implementation, a circuit arrangement is provided that incorporates uses a single antenna to achieve concurrent transmit and receive, transmit only and receive only of wireless signals. A dual amplifier structure may be provided, and at least one of the amplifiers associated with the dual amplifier structure is amplitude tunable in order to ensure that each amplifier of the dual amplifier structure provides substantially the same or the same signal amplification. Unwanted transmit signals detected by a receiving circuit arrangement may be used to cause a processor to generate a digital code word that is used to modify a signal amplification provided by at least one of the amplifiers associated with the dual amplifier structure.

主权项

1. A wireless communication device, comprising:
an amplification structure including a first amplification element and a second amplification element; a processor coupled to provide a control signal to the amplification structure, the control signal to adjust an amount of signal amplification provided by at least one of the first and second amplification elements; a receiving structure coupled to the amplification structure, the receiving structure to receive at least one antenna signal provided by an antenna and to provide feedback information to influence the control signal; further comprising at least one phase modification device coupled to the amplification structure, the at least one phase modification device to receive a frequency signal and to offset a phase associated with the frequency signal to provide a phase modified frequency signal to the amplification structure; and wherein the at least one phase modification device is a plurality of phase modification devices, each of the plurality of phase modification devices to receive the frequency signal and to offset the phase associated with the frequency signal to provide the phase modified frequency signal to the amplification structure.