The invention is directed to an extended radio-frequency identification (RFID) tag. The extended RFID tag includes an ultra-high frequency (UHF) RFID tag having a dipole antenna attached to a first surface of a substrate. The extended RFID tag further includes an antenna extension attached to the UHF RFID tag and overlapping at least a portion of the dipole antenna for electromagnetically coupling the antenna extension and the dipole antenna in operation. The extended RFID tag further includes an insulator positioned between the dipole antenna and the antenna extension to electrically isolate the dipole antenna from the antenna extension.
申请公布号
US2009085750(A1)
申请公布日期
2009.04.02
申请号
US20070904625
申请日期
2007.09.27
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
WALDNER MICHELE A.;ERICKSON DAVID P.;MCGEE JAMES P.;BANERJEE SWAGATA R.;SAINATI ROBERT A.