METHOD AND APPARATUS FOR ANTENNA SELECTION

摘要

A system that incorporates teachings of the subject disclosure may include, for example, an antenna system coupled with the transceiver that includes a first antenna and a second antenna where one of the first or second antennas is operating as a primary antenna and the other of the first or second antennas is operating as a diversity antenna. The system can include an RF switch connected with the antenna system, where the RF switch has a first position in which the first antenna is the primary antenna and the second antenna is the diversity antenna, and wherein the RF switch has a second position in which the second antenna is the primary antenna and the first antenna is the diversity antenna. The system can include a controller coupled with the matching network and with the RF switch, where the controller receives first reflection measurements associated with the antenna system, and where the controller adjusts the RF switch to select between the first and second positions according to the first reflection measurements.

主权项

1. A mobile communication device, comprising:
a transceiver; an antenna system coupled with the transceiver, wherein the antenna system includes a first antenna and a second antenna, wherein one of the first or second antennas is operating as a primary antenna and another of the first or second antennas is operating as a diversity antenna; an RF switch connected with the antenna system, wherein the RF switch has a first position in which the first antenna is the primary antenna and the second antenna is the diversity antenna, and wherein the RF switch has a second position in which the second antenna is the primary antenna and the first antenna is the diversity antenna; a matching network coupled with the transceiver and the antenna system, wherein the matching network comprises a tunable reactive element; and a controller coupled with the matching network and with the RF switch, wherein the controller receives first reflection measurements associated with the antenna system, wherein the controller adjusts the tunable reactive element according to the first reflection measurements to provide impedance tuning, wherein the controller adjusts the RF switch to select between the first and second positions according to the first reflection measurements, wherein the controller adjusts the RF switch to select between the first and second positions according to the first reflection measurements and a distance measured from free space designated on a stored tuning grid.