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:
Jan. 27, 2004
Filed:
Jun. 28, 2002
Applicant:
Inventors:
Assignee:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 3/28 ; H01Q 3/22 ;
U.S. Cl.
CPC ...
G01S 3/28 ; H01Q 3/22 ;
Abstract
Disclosed is an electronic active phase control array antenna having two beams which comprises: a first array unit for performing phase shifting on radio waves received via satellite communication, combining them, and generating first beams on the basis of a first phase delay control value according to a first beam frequency; and a second array unit for performing phase shifting on the output value phase-shifted by the first array unit on the basis of a second phase delay control value for compensating for the phase delay difference according to a second beam frequency shifted through the first array unit, and generating second beams.