Patent ID: 8144064
Filing Date: 2012-03-27
Classification: H01Q

Abstract:
1. An antenna for use in handheld devices comprising: a plurality of conductive elements arranged in parallel to one another, the conductive elements having a first end and a second end; a first diode switch connected to each of the first ends of the plurality of conductive elements; a second diode switch connected to each of the second ends of the plurality of conductive elements; a control circuit configured to operate the first diode switch to engage with one of the first ends of one of the plurality of conductive elements, wherein the control circuit is isolated from the conductive element so that radio frequency (RF) energy from the control circuit does not enter the conductive element; and the control circuit configured to operate the second diode switch to engage with the second end of the conductive element for which the first switch is engaged, wherein the second control circuit is isolated from the conductive element so that radio frequency (RF) energy from the control circuit does not enter the conductive element; wherein one of the plurality of conductive elements has an electrical length different that the electrical length of the remaining conductive elements.