Patent ID: 6906666
Filing Date: 2005-06-14
Classification: H01Q

Abstract:
1. A device for adjusting the beam direction of a beam radiated from a stationary array of antenna elements, said device comprising at least four antenna element feed points coupled to a common signal source via a planar feed line structure having a source connection terminal to be connected to said source and at least four feed connection terminals to be connected to said antenna element feed points, said feed line structure being elongated in a main direction at a distance from and in parallel to a fixed ground plane on at least one side of said feed line structure, a movable dielectric body located between said feed line structure and said ground plane so as to change the exciting phase of signal components being transferred between said source connection terminal and the respective feed connection terminals, said dielectric body being movable in said main direction for effecting a controlled phase shift change of said signal components so as to adjust said beam direction,