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:
Mar. 12, 2002
Filed:
Dec. 01, 1999
Applicant:
Inventors:
Fuminori Nakamura, Nagaokakyo, JP;
Hideaki Yamada, Ishikawa-ken, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 1/508 ;
U.S. Cl.
CPC ...
H01Q 1/508 ;
Abstract
A dielectric lens antenna includes a dielectric lens, a primary radiator and a dielectric member provided between the dielectric lens and the primary radiator. The dielectric member is formed into a substantially circular cone shape, and the dielectric constant of the dielectric member is reduced continuously in the radial direction of the dielectric lens from the center line passing through the center of the dielectric lens and the primary radiator.