Patent · US Expired

Radio frequency identification tag

US7336243B2 · kind B2 · utility

56Cited by
42References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 28, 2004
Grant dateFeb 26, 2008
Priority date
Expiry dateJul 22, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01Q9/285
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A radio frequency identification tag attached to an object and comprising an antenna and an integrated circuit for providing object information to a separate reader. The antenna further comprises a pair of meanderline transmission lines each terminated at a first end for conductive connection to the integrated circuit. A shorting bar connected between the pair of meanderline transmission lines at the first ends is operative to match an antenna impedance with an integrated circuit impedance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.