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:
Sep. 05, 1989
Filed:
Dec. 04, 1987
Applicant:
Inventors:
Frank C Bennett, Chelmsford, GB;
Clive W Miller, Chelmsford, GB;
Assignee:
The General Electric Company, p.l.c., London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
342368 ; 342373 ;
Abstract
A beam forming network employing a matrix of resistive coupling elements to link individual elements E.sub.1 to E.sub.n of an antenna to the different phase terminals 3, 4, 5 and 6 of a phase combiner. Because of unwanted coupling between the conductive members forming the matrix it has in some circumstances been found impossible to select values of the coupling elements to give a required beam pattern. The invention solves the problem by including phase shifters in alternate lines to the antenna elements. A separate matrix and phase combiner is provided for each beam to be formed.