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:
Aug. 10, 1999
Filed:
Mar. 06, 1997
Advanced Space Communications Research Laboratory (ASC), Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A multi-beam feeding apparatus according to the present invention is a feeding apparatus for a multi-beam antenna comprising a reflector and a primary radiator comprising a plurality of element antennas, and the apparatus is provided with a plurality of beam forming networks for setting an excitation distribution relative to the element antenna necessary for every beam. Each beam forming network is connected via a combiner (a divider) disposed to every of all the element antennas. According to this construction, not only there is such an advantage that a variation of capacity of communication between the beams and the like can be flexibly responded, but also there are such effects that a beam forming network can be so simply constructed that the same systems are only combined, a power can be more effectively used, such a problem as a heat generation and the like can be reduced. Moreover, a plurality of missions can be easily fused. Thereby, communication can be more flexible, a power loss relating to a large power transmission can be easily solved, and an necessary excitation distribution can be easily set at a low cost.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile