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:
Dec. 14, 1993
Filed:
Apr. 29, 1992
Katsuya Tsukamoto, Osaka, JP;
Toshio Abiko, Osaka, JP;
Hiroo Inoue, Osaka, JP;
Kaname Okuno, Osaka, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
A planar antenna includes a grounding conductor plate, a power supply plate having a pattern of power supplying conductor strips each including power supply terminals, and a radiation plate having apertures forming radiation elements, the respective plates being arranged sequentially with an insulating layer interposed between adjacent ones of the plates to separate them to be independent of one another through a predetermined interval, while coupling electromagnetically the respective power supplying terminals of the power supplying conductor pattern on the power supply plate to the radiation elements provided as the apertures in the radiation plate. With this simplified arrangement, the planar antenna makes it possible to receive at a high gain circularly polarized waves over a wide range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile