Patent ID: 7463211

Claim:
A tunable antenna system, comprising: a driven element, the driven element comprising a first support arm formed from non-conductive material and having a first section extending in a first direction for a first length, a curved transition section and a second section extending in a second direction for a second length, the first support arm being hollow and including a first length-adjustable conductive member disposed therein, and a second support arm formed from non-conductive material and having a first section extending in a first direction for a first length, a curved transition section and a second section extending in a second direction for a second length, the second support arm being hollow and including a second length-adjustable conductive member disposed therein; length adjuster configured to adjust the lengths of the first and second conductive members disposed, respectively, in the first and second support arms; and a transmission-line coupler electrically coupled to the driven element.