Patent ID: 8842044

Claim:
An antenna system for a wireless communication device, the antenna system comprising: a. first and second antenna sections; b. a first set of one or more feed points, the first set of one or more feed points coupled to the first antenna section so that a first radiation pattern adapted for wireless communication is generated when a first set of drive currents is provided to the first antenna section at the first set of one or more feed points; c. a second set of one or more feed points, the second set of one or more feed points coupled to the second antenna section so that a second radiation pattern adapted for wireless communication is generated when a second set of drive currents is provided to the second antenna section at the second set of one or more feed points, wherein the second radiation pattern is at least in part different from the first radiation pattern; and d. a controller configured to supply the first set of one or more drive currents and the second set of one or more drive currents to the first set of one or more feed points and the second set of one or more feed points, respectively, to generate an overall radiation pattern being at least in part a combination of the first radiation pattern and the second radiation pattern, wherein the overall radiation pattern is adapted for wireless communication, and wherein the controller is configured to at least one of periodically, intermittently and randomly vary the first set of one or more drive currents and the second set of one or more drive currents over time to vary the first and second radiation patterns over time and generate the overall radiation pattern.