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. 20, 2005
Filed:
Sep. 18, 2003
Stuart Gifford Hay, Kogarah Bay, AU;
Christophe Jean-marc Granet, Ryde, AU;
Trevor Stanley Bird, Eastwood, AU;
Mark Andrew Sprey, Lindfield, AU;
Stephen John Barker, North Ryde, AU;
Anthony Ross Forsyth, Mount Colah, AU;
Stuart Gifford Hay, Kogarah Bay, AU;
Christophe Jean-Marc Granet, Ryde, AU;
Trevor Stanley Bird, Eastwood, AU;
Mark Andrew Sprey, Lindfield, AU;
Stephen John Barker, North Ryde, AU;
Anthony Ross Forsyth, Mount Colah, AU;
Commonwealth Scientific and Industrial Research Organisation, Campbell, AU;
Abstract
A method, an apparatus, and a computer program product for electromagnetically designing a shaped-reflector multibeam antenna () are disclosed. An initial configuration of the multibeam antenna () for given beam directions is provided of reflectors () shaped with an initial reflector shaping process () and feeds of an initial specification (). The initial reflector shaping process () is an iterative optimization process for increasing the focusing of optical rays incident on the multibeam antenna from the given beam directions (). A second iterative optimizing process consisting of optimizing () radiation patterns of feeds (A-D) and optimizing () surface shapes and sizes of reflectors () is used to reduce beam spillover, improve beam shapes and obtain beams with gain radiation patterns within required upper and lower bounds.