Beam steering with a periodic resonance structure
AssigneeHarris Corporation
InventorsStephen B. Brown, James J. Rawnick
Life of this patent
Estimating the term…
Abstract
Method and apparatus for steering an antenna beam using a periodic resonance structure (300). The method can include the step of electrically and magnetically coupling a first fluid dielectric (114) to a plurality of transmission line stubs (104) that are respectively coupled to a plurality of radiating elements (102) of a periodic resonance structure (300). The first fluid dielectric (114) is controlled to selectively vary an electrical length of each of the transmission line stubs (104). This permits directing an angle of a redirected RF beam produced by an incident RF signal (306) impinging on the periodic resonance structure (300).
Claims16
A method for steering an antenna beam using a periodic resonance structure, comprising the steps of:
- electrically and magnetically coupling a first fluid dielectric to a plurality of transmission line stubs that are respectively coupled to a plurality of radiating elements of a periodic resonance structure;
- and
- controlling said first fluid dielectric to selectively vary an electrical length of said plurality of transmission line stubs, whereby an angle can be controlled for a redirected RF beam produced by an incident RF signal impinging on said periodic resonance structure.
A steerable beam antenna comprising:
- a periodic resonance structure comprising a plurality of transmission line stubs respectively coupled to a plurality of radiating elements;
- a plurality of cavity structures each containing at least a first fluid dielectric, said first fluid dielectric electrically and magnetically coupled to said transmission line stubs;
- and
- at least one fluid processor controlling said fluid dielectric for selectively varying an electrical length of said transmission line stubs, whereby an angle of a redirected RF beam produced by an incident RF signal impinging on said periodic resonance structure can be controlled.
Dependencies are inferred from the claim text.