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. 13, 2011
Filed:
Apr. 10, 2007
Soon-soo OH, Daejon, KR;
Je-hoon Yun, Daejon, KR;
Jung-ick Moon, Daejon, KR;
Joung-myoun Kim, Daejon, KR;
Yong-heui Cho, Daejon, KR;
Soon-Soo Oh, Daejon, KR;
Je-Hoon Yun, Daejon, KR;
Jung-Ick Moon, Daejon, KR;
Joung-Myoun Kim, Daejon, KR;
Yong-Heui Cho, Daejon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
There is a provided a system for measuring an antenna radiation pattern in a Fresnel region, including: a fixed antenna and a movable antenna located in the Fresnel region to acquire a far-field radiation pattern; a moving unit for moving upward or downward to adjust a measuring angle of the movable antenna; a rotation unit to rotate a rotation shaft horizontally; a vector network analyzing unit for outputting an radio frequency (RF) signal to one of the fixed antenna and the movable antenna as a transmission antenna, receiving the RF signal received through the other one of the fixed antenna and the movable antenna as a receiving antenna, and detecting a complex value; a control and communication unit for controlling the vector network analyzing unit and a control unit, and performing a data communication; and the control unit for providing a vertical/horizontal rotation force to the moving unit and the rotation unit under a control of the control and communication unit.