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:
Mar. 20, 2012
Filed:
Sep. 21, 2007
Joon-hyung Kim, Daejon, KR;
Jae-ho Jung, Daejon, KR;
Heon-kook Kwon, Daejon, KR;
Kwang-chun Lee, Daejon, KR;
Joon-Hyung Kim, Daejon, KR;
Jae-Ho Jung, Daejon, KR;
Heon-Kook Kwon, Daejon, KR;
Kwang-Chun Lee, Daejon, KR;
Electronics and Telecommunications Research Institute, Daejon, KR;
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Abstract
There is provided to an RF calibration apparatus and method for a multi-antenna mobile communication system, which calibrates a phase error and gain error of an RF path by calculating the minimum value of a sum of an initialized reference signal and a comparison signal by a simple operation and controlling the phase value of a phase converter and the gain of a variable amplifier on the RF path, in calibrating the RF path of a multi-antenna mobile communication system of a TDD (Time Division Duplexing) type or FDD (Frequency Division Duplexing) type.