Characteristics of wristband type RFID antenna

Author

Takahashi, Masaharu ; Nakajima, Takashi ; Saito, Kazuyuki ; Ito, Koichi

Author_Institution

Reseach Center for Frontier Med. Eng., Chiba Univ., Chiba, Japan

fYear

2010

fDate

12-16 April 2010

Firstpage

1

Lastpage

4

Abstract

In recent years, RFID (radio frequency identification) systems are widely developed. There are many types of RFID tag and each tag is used for suitable application. The wristband type RFID tag is one of the applications for personal identification. In case an RFID tag is used close to a human, the human body affects the characteristics of the RFID antenna. In this paper, a reflector-loaded antenna that placed close to the human body has been calculated in order to analyze the operation of the wristband type RFID antenna. Moreover, the antenna radiation patterns and input characteristics were measured by use of a biological tissue-equivalent solid phantom. As a result, characteristics of the antenna were clarified. In addition, the effect on the antenna characteristics was verified when the space between the arm and the wristband was changed.

Keywords

Antenna measurements; Authentication; Biomedical engineering; Humans; Imaging phantoms; RFID tags; Radio frequency; Radiofrequency identification; Reflector antennas; Solids;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on

Conference_Location

Barcelona, Spain

Print_ISBN

978-1-4244-6431-9

Electronic_ISBN

978-84-7653-472-4

Type

conf

Filename

5505795