Patent ID: 7855697
Filing Date: 2010-12-21
Classification: G06K,H01Q

Abstract:
1. An antenna system for a radio-frequency identification (RFID) tag, comprising: an antenna substrate; an integrated circuit (IC) disposed on an end of the antenna substrate or adjacent to the end of the antenna substrate; at least one serpentine antenna element having a first length and formed on the antenna substrate and electrically connected to the IC and extending from the IC in a first direction; a conducting wire having a second length different from the first length electrically connected to either the IC or the at least one serpentine antenna element and extending on the antenna substrate in the first direction or substantially in the first direction; and a shunt electrically connected to the at least one serpentine antenna element and to the conducting wire, the shunt configured to facilitate impedance matching between the antenna system and the IC.