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:
May. 16, 1978
Filed:
Sep. 01, 1976
Applicant:
Inventor:
Nabil Hassan Farhat, Philadelphia, PA (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ; H01Q / ;
U.S. Cl.
CPC ...
343754 ; 343915 ; 350358 ;
Abstract
Electronically steered antenna system is provided by placing a panel of dielectric material with specific thickness and dielectric constant spaced forward of an array of piezoelectric transducers. These piezoelectric transducers present a refelective surface. High frequency wavefronts are transmitted toward the dielectric panel and pass on to the reflective surface. The phase of the reflected waves depends upon the spacing of the reflective surfaces from the panel. A change in this spacing is provided by electrical control signals being applied to the piezoelectric transducers.