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:
May. 05, 2009
Filed:
May. 24, 2007
Teh-hong Lee, Dublin, OH (US);
Walter D. Burnside, Dublin, OH (US);
Robert J. Burkholder, Columbus, OH (US);
Chan-ping Edwin Lim, Hilliard, OH (US);
Teh-Hong Lee, Dublin, OH (US);
Walter D. Burnside, Dublin, OH (US);
Robert J. Burkholder, Columbus, OH (US);
Chan-Ping Edwin Lim, Hilliard, OH (US);
YEON Technologies Co., Ltd., Taipei, TW;
Abstract
This invention provides an array antenna for a radio frequency identification (RFID) system, the array antenna comprises a transmission line with a longitudinal span proximately equaling to a height of a space desired to be covered by the array antenna, the transmission line having a terminal coupled to a RFID reader, and a plurality of radiating elements disposed on the first transmission line along the longitudinal span, additionally, reflective materials used behind the array antenna to maximize the illumination in the desired space and absorptive materials installed surrounding the desired space, in order to minimize the illumination of the undesired space surrounding the desired space.