3-D transponder antennas for future SHF RFID applications

R Zichner,R R Baumann

doi:10.5194/ars-9-401-2011

Abstract

Abstract. The radio frequency identification (RFID) technology is omnipresent since a few years. Some of the most popular fields of application are the use for security tasks, for logistics and for the consumer segment. For example, chip card or key ring sized RFID transponders can allow wireless access to secured rooms. The number of applications for wireless data transmission for the identification and tracking of objects increases every year. There is a large development need for highly functional and inexpensive RFID transponders due to the ever-increasing demand on improved reliability, higher data rates and read and write ranges of the RFID systems. Therefore, research was performed on new 3-D transponder antennas for the Super High Frequency Band around 5.8 GHz. Additionally, wave propagation effects and the influence of different dielectric environments were considered. Parallel to the design of the novel antenna structures, the printing process for inexpensive manufacturing was investigated. The gained results are the basis for prospective RFID applications.

Highlights

State of the art passive radio frequency identification (RFID) transponder for long range application (8 m–10 m) operate in frequency ranges of 868 MHz–928 MHz and 2.45 GHz
State of the art passive RFID transponder for long range application (8 m–10 m) operate in frequency ranges of 868 MHz–928 MHz and 2.45 GHz. Such transponders typically consist of a dipole antenna and a silicon RFID chip
The electromagnetic fields which are generated by dipole antennas allow a Donat shaped radiation characteristic

Summary

Introduction

State of the art passive RFID transponder for long range application (8 m–10 m) operate in frequency ranges of 868 MHz–928 MHz and 2.45 GHz. State of the art passive RFID transponder for long range application (8 m–10 m) operate in frequency ranges of 868 MHz–928 MHz and 2.45 GHz Such transponders typically consist of a dipole antenna and a silicon RFID chip. These transponders are going to be disadvantaged due to the nondirectional typical dipole radiation characteristics – High influence of dielectric environments (scattering, diffraction, reflection of electromagnetic radiation in dielectric medium) on transponder antenna characteristics

Basics

Results

Conclusions described in a prototype study by Mr Wate