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:
Aug. 21, 2018
Filed:
May. 28, 2015
Electronics and Telecommunications Research Institute, Daejeon, KR;
Industry-academic Cooperation Foundation, Chosun University, Gwangju, KR;
Kwang Seon Kim, Daejeon, KR;
Sun Soo Oh, Gwangju, KR;
Woo Jin Byun, Daejeon, KR;
Min Soo Kang, Daejeon, KR;
Bong Su Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITY, Gwangju, KR;
Abstract
Disclosed is a circular array antenna. The circular array antenna includes: an input/output unit receiving electromagnetic waves from a transmitter and distributing the received electromagnetic waves to the antenna; a primary feeder connected with the input/output unit and placed at the center of the circular array antenna; a plurality of secondary feeders radially connected to the primary feeder; a plurality of patch units connected to the respective secondary feeders to generate an electric field radially; and a plurality of length controllers formed at terminals of the respective secondary feeders in a direction to extend the lengths of the respective secondary feeders, of which the lengths are controllable.