APPARATUS AND METHOD FOR OPERATION OF AN ANTENNA SYSTEM ENABLING CONTROL OF RADIATION CHARACTERISTICS

摘要

A method of operating an antenna system for a wireless device is provided for controlling radiation characteristics of the antenna system. The antenna system includes first and second sets of feed points disposed so that first and second radiation pattern are generated by the antenna system when drive currents are provided at the first and second set of feed points, respectively. The second radiation pattern is different from the first radiation pattern. The first and second drive currents are supplied such that a predetermined overall radiation pattern is generated. The predetermined overall radiation pattern is at least in part a combination of the first radiation pattern and the second radiation pattern. The system and method may be directed toward SAR mitigation.

主权项

1. A method for providing drive current to an antenna system for a wireless device, the antenna system having a first set of feed points disposed so that a first radiation pattern adapted for wireless communication is generated corresponding to a first set of drive currents provided to the antenna system at the first set of feed points; and a second set of feed points disposed so that a second radiation pattern adapted for wireless communication is generated corresponding to a second set of drive currents provided to the antenna system at the second set of feed points; wherein the second radiation pattern is at least in part different from the first radiation pattern; the method comprising:
a. providing the first set of drive currents for a first predetermined time; b. providing the second set of drive currents for a second predetermined time; c. repeating steps a) and b) until occurrence of a predetermined event, whereby an overall radiation pattern adapted for wireless communication is being generated, the overall radiation pattern being at least in part a combination of the first radiation pattern and the second radiation pattern.