Patent ID: 6448942
Filing Date: 2002-09-10
Classification: H01Q

Abstract:
A tunable antenna, comprising:at least first and second separate radiator parts having an electrical coupling therebetween and defining a radiation pattern, said coupling formed to be changed by at least one of rotation and displacement of said at least first and second radiator parts with respect to one another where a respective degree of at least one of rotation and displacement creates a corresponding change said radiation pattern; said first radiator part having a first helix and a first conductor part, said first helix having an end and a first longitudinal center axis and extending one of parallel and inclined to said first longitudinal center axis, said first conductor part being disposed at said end; said second radiator part having a second helix and an second open turn, said second helix having an end and a second longitudinal center axis, said second open turn being disposed at said end and being disposed in a plane extending one of perpendicularly and inclined to said second longitudinal center axis of said helix; and a third radiator part having a rod, a third conductor part, and a third open turn, said rod having a longitudinal center axis and first and second ends, said third conductor part being disposed at said first end and having a longitudinal center axis aligned with said longitudinal center axis of said rod, said third open turn being disposed at said second end and being located in a plane extending one of perpendicular and inclined to said longitudinal center axis of said rod.