Low-profile antenna with elevated toroid-shaped radiation for on-road reader of RFID-enabled vehicle registration plate

Wang, Y., Pretorius, A. J. and Abbosh, A. M. (2016) Low-profile antenna with elevated toroid-shaped radiation for on-road reader of RFID-enabled vehicle registration plate. IEEE Transactions on Antennas and Propagation, 64 4: 1520-1525. doi:10.1109/TAP.2016.2535137


Author Wang, Y.
Pretorius, A. J.
Abbosh, A. M.
Title Low-profile antenna with elevated toroid-shaped radiation for on-road reader of RFID-enabled vehicle registration plate
Journal name IEEE Transactions on Antennas and Propagation   Check publisher's open access policy
ISSN 0018-926X
1558-2221
Publication date 2016-04-01
Year available 2016
Sub-type Article (original research)
DOI 10.1109/TAP.2016.2535137
Open Access Status Not Open Access
Volume 64
Issue 4
Start page 1520
End page 1525
Total pages 6
Place of publication Piscataway, NJ, United States
Publisher Institute of Electrical and Electronics Engineers
Language eng
Abstract A low-profile antenna installed on the road surface for RFID-enabled vehicle communication is presented. The antenna in this application operates as on-road sensor for vehicles identification. To that end, the antenna is required to have an elevated toroid-shaped radiation, so that the reader can easily interrogate an RFID-enabled vehicle license. The antenna is designed using a capacitive-loaded inverted-F radiator, which has an omnidirectional radiation in the azimuth plane. To adjust the radiation pattern to the required elevation above the road surface, and isolate the radiation from the effects of variable road conditions, a corrugated ground plane with perturbed surface impedance is used underneath the radiator. The antenna's configuration is verified by full-wave finite difference time domain simulations with various road surface conditions. A prototype antenna is then developed and tested in realistic field scenarios as on-road sensor for vehicles identification. The results show that the antenna possess more than 15 dB return loss, more than 1.5 dBi gain, vertical polarization, and desirable radiation pattern from 880 to 960 MHz, which is the standard band licensed for RFID-enabled plates. The antenna also successfully communicates with an RFID-enabled vehicle registration plate.
Keyword Inverted-F antenna
Low-profile antenna
On-road reader
RFID
UHF antenna
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Information Technology and Electrical Engineering Publications
 
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