Commonwealth Scientific and Industrial Research Organisation

Stephen John Barker

Trevor Stanley Bird

Stuart Gifford Hay

Mark Andrew Sprey

Anthony Ross Forsyth

Barry Frederick Parsons

Christophe Jean-Marc Granet

Michael John Kesteven

Vincent Miguel Harrigan, Deceased

Peter John Goss

Kenneth Charles Skinner

Donald Edward Yabsley

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.

Shaped-reflector multibeam antennas

Multibeam antenna

Method and apparatus of stud array upstand setting

Growing community of inventors

North Ryde, Australia

Stephen John Barker