RFID Antennas for the UHF Remote Monitoring of Human Subjects

Author

Marrocco, Gaetano

Author_Institution

Univ. di Roma Tor Vergata, Rome

Volume

55

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

1862

Lastpage

1870

Abstract

This paper addresses the design of passive and semi- passive transponder antennas for radio frequency identification applications involving the human body as the object to be tagged or bio-monitored. A planar tag antenna geometry, that is based on a suspended patch fed via a nested slot and is able to host sensors and electronics, is here introduced. Guidelines for conjugate impedance matching are given for different kinds of microchip transmitters, within power limitations as well as space constraints. Finally, the antenna matching performance is experimentally evaluated utilizing a body-tissue phantom.

Keywords

antenna feeds; impedance matching; monitoring; planar antennas; radiofrequency identification; slot antennas; RFID antennas; UHF remote monitoring; antenna matching; bio-monitoring; body-tissue phantom; human body; human subjects; impedance matching; microchip transmitters; planar tag antenna geometry; radio frequency identification; transponder antennas design; Biosensors; Geometry; Guidelines; Humans; Impedance matching; Radiofrequency identification; Remote monitoring; Slot antennas; Transponders; UHF antennas; Impedance matching; planar antenna; radio frequency identification (RFID); sensor networks; slot antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2007.898626

Filename

4232643