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:
Oct. 31, 2000
Filed:
Dec. 22, 1998
Kazunari Kawahata, Kyoto, JP;
Shigekazu Itoh, Kyoto, JP;
Yuichi Kushihi, Kanazawa, JP;
Masaru Shikata, Kanazawa, JP;
Haruo Matsumoto, Kanazawa, JP;
Abstract
A surface mount circularly polarized wave antenna which includes a substrate made of an insulating material and having a first main face, a second main face, and at least one side face extending between the first main face and second main face; a first ground electrode disposed on the first main face of the substrate; a radiation electrode disposed on the second main face; a feeding electrode having a strip shape and extending from the first main face of the substrate, on the one side face of the substrate, and toward the second main face, one edge of the feeding electrode being positioned near to one side of the radiation electrode; and a second ground electrode disposed on the one side face of the substrate where the feeding electrode is disposed, and electrically conductively isolated from the feeding electrode and electrically conductively connected to the first ground electrode; and a degeneracy separation element provided in relation to the radiation electrode for causing radiation of a circularly polarized wave from the radiation electrode.