The Open Electrical & Electronic Engineering Journal

2014, 8 : 27-33
Published online 2014 September 05. DOI: 10.2174/1874129001408010027
Publisher ID: TOEEJ-8-27

RFID-Based E-Plate with Slot-Dipole Antenna Design and Roadside Interrogator Deployment

Wenjing Zhao , Xunguang Ju and Shuangjiang Wu
Department of Information and Electrical Engineering, Xuzhou Institute of Technology, Xuzhou 221000, P. R. China.

ABSTRACT

For some scenarios of vehicle tracking and identification, it is desired that radio-frequency identification (RFID) interrogators can be deployed on roadside lampposts or high poles. In order to meet this requirement, active RFID electronic license plate (e-plate) with a slot-dipole antenna is proposed to provide up-tilted beams. Numerical simulations demonstrate that the proposed e-plate antenna has desired impedance bandwidth, high gain and multi-beam radiation pattern as required at 2.45 GHz RFID band. In addition, the estimated read range of the proposed e-plate meets the requirement of RFID system, and deployment of interrogator on roadside lamppost or high pole is analyzed.

Keywords:

e-plate, interrogator deployment, radiation pattern.