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http://dx.doi.org/10.5515/KJKIEES.2010.21.8.872

Directivity Pattern Design of a Vehicle Tag Antenna for Improvement of the Readable Range  

Park, Dae-Hwan (Department of Radio Communication Engineering, Korea Maritime University)
Min, Kyeong-Sik (Department of Radio Communication Engineering, Korea Maritime University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.21, no.8, 2010 , pp. 872-879 More about this Journal
Abstract
This paper describes the design for radiation pattern directivity of vehicle license plate RFID tag antenna to improve the readable range. Directivity pattern of the proposed passive antenna is decided by the meander line position and the bumper size attached to the tag antenna. In order to prove the verification of the calculated directivity pattern and readable range of the proposed antenna, the tag antenna has been fabricated and measured at the anechoic chamber. It is shown that the maximum directivity gain of the measured radiation pattern of active and passive tag antenna were observed 2.32 dBi and 3.1 dBi, respectively. The maximum readable range of passive tag antenna was measured about 8.5 m at ${\pm}45^{\circ}$ beam direction on the basis of the driving car direction($0^{\circ}$ of azimuth angle).
Keywords
RFID Tag Antenna; Vehicle License Plate; Readable Range; Active and Passive Antenna; Directivity Pattern;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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