An Innovative Semicircular Spiral Antenna for On-Metal Passive RFID Applications

Author

Xin Jian ; Xiaoping Zeng ; Li Zhang

Author_Institution

Dept. of Commun. Eng., Chongqing Univ., Chongqing, China

Volume

61

Issue

3

fYear

2013

fDate

3/1/2013 12:00:00 AM

Firstpage

1026

Lastpage

1031

Abstract

The special geometric layout of actual engineering project requires the tag to be placed in a special metal cavity, which severely blocks the propagation of the electromagnetic (EM) field from the reader to tag. To guarantee the effective communication between the reader and tag, an innovative semicircular spiral antenna that works on 13.56 MHz with an effective working distance up to 100 mm has been developed to realize noncontact synchronous transmission of power and data from the reader to tag. By using the finite element method, the key features of this innovative semicircular spiral antenna, and its design and optimization processes have been presented in detail.

Keywords

electromagnetic wave propagation; finite element analysis; optimisation; radiofrequency identification; spiral antennas; EM field propagation; actual engineering project; elctromagnetic field propagation; finite element method; innovative semicircular spiral antenna facor; noncontact synchronoustransmission; on-metal passive RFID applications; optimization processes; special geometric layout; special metal cavity; working distance; Coils; Dipole antennas; Impedance; Magnetic fields; Metals; Spirals; Semicircular spiral antenna; spiral antenna; wire antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2230234

Filename

6363544