The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2002
Filed:
Jun. 08, 2000
Applicant:
Inventors:
Daniel Sievenpiper, Los Angeles, CA (US);
Greg Tangonan, Oxnard, CA (US);
Robert Y. Loo, Agoura Hills, CA (US);
James H. Schaffner, Chatsworth, CA (US);
Assignee:
HRL Laboratories, LLC, Malibu, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/502 ;
U.S. Cl.
CPC ...
H01Q 1/502 ;
Abstract
A tuneable impedance surface for steering and/or focusing a radio frequency beam. The tunable surface comprises a ground plane; a first plurality of elements disposed in an array a first distance from the ground plane, the distance being less than a wavelength of the radio frequency beam; and a second plurality of elements disposed in an array a second distance from the ground plane, the second plurality of elements be moveable relative to the first plurality of elements.