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:
Nov. 19, 2002
Filed:
Sep. 08, 2000
Katsuhiko Tokuda, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A multi-beam antenna includes a parabolic reflector, a block-down-converter, a support arm and a holding member. The block-down-converter is arranged such that a multi-primary radiator and a housing containing a conversion circuit are integrally molded. The multiprimary radiator is constituted by a plurality of primary radiators having apertures whose central points are arranged linearly. Neighboring two of the primary radiators are integrally joined with each other at a joint part. A polarization angle can be adjusted simply by a function that an angle formed between the block-down-converter and the support arm can be varied about a perpendicular radiation axis by the holding member. A feeding element pair formed on the conversion circuit is constituted by two feeding elements extending orthogonally to each other. Angles formed between the feeding elements and a central line of the joint part are determined on the basis of a center of a longitudinal range of a receiving area.