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:
Apr. 04, 1989
Filed:
Mar. 05, 1985
Naohisa Goto, Kawasaki-Shi, Kanagawa-Ken, JP;
Yoshiharu Ito, Shibuya-Ku, Tokyo, JP;
Kunitaka Arimura, Chigasaki-Shi, Kanagawa-Ken, JP;
Makoto Ando, Yokohama-Shi, Kanagawa-Ken, JP;
Tatsuya Shirai, Ota-Ku, Tokyo, JP;
Ryuji Teramoto, Atsugi-Shi, Kanagawa-Ken, JP;
Other;
Abstract
The present invention relates to telecommunication technology and broadcasting antenna technology. The power-feeding portion and the wave-guiding space, and the power-feeding wave-guiding space and the power-radiating wave-guiding space are matched for the effective radiation of the fed power. A conical matching body is disposed within the wave-guiding space with the apex thereof directed toward a power-feeding opening; the junction of the power-feeding wave-guiding space and the power-radiating wave-guiding space is formed in a sectional shape of a semicircle, a hemihedral polygon or a desired curvilinear shape; the power-feeding wave-guiding space the power-radiating wave-guiding space are matched in impedance; or a matching body is provided at the junction of the power-feeding wave-guiding space and the power-radiating wave-guiding space. A delaying means, such as a corrugated plate, is provided on the power-radiating surface or on a wall disposed opposite to the power-radiating surface, to radiate the power of the same phase uniformly with the reduced side lobe.