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:
Jun. 11, 2002
Filed:
Jul. 31, 2000
Chun-Hong Harry Chen, Torrance, CA (US);
Steven Szu-Cherng Kuo, Torrance, CA (US);
Te-Kao Wu, Rancho Palos Verdes, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A phased antenna array ( ) for use on a satellite, that employs a density tapering technique for positioning the antenna elements ( ) in the array ( ) to reduce co-channel interference between adjacent cells. Particularly, the spatial position of the various antenna elements ( ) in the array ( ) are spread out so that the center portion of the array ( ) has the highest density of elements ( ), and the outer portion of the array ( ) has the lowest density of elements ( ). Predetermined schemes are used to set the density of the elements ( ) in the array ( ). By providing fewer antenna elements ( ) at the outer portion of the array ( ), the beam side lobes are reduced.