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:
Jun. 09, 1998
Filed:
Aug. 20, 1996
Applicant:
Inventor:
Leon J Ricardi, El Segundo, CA (US);
Assignee:
Datron/Transco, Inc., Simi Valley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
3439 / ; 3439 / ; 343753 ;
Abstract
A semi-cylindrical dielectric lens antenna on a ground plane for focusing radiation from a line source adjacent to the semi-cylinder. Grooves in the surface of the ground plane modify the polarization of the electromagnetic radiation reflected by the ground plane thus allowing conversion of radiation from linear to circular polarization and vice versa. Selectable line sources may be used to provide both right and left hand circularly polarized radiation. The entire antenna and ground plane may be rotated and the line source may be moved relative to the dielectric lens so as to scan the antenna beam over a hemisphere.