scholarly journals UHF RFID Tag Antenna for Vehicle License Plate Number (e-Plate)

2013 ◽  
Vol 11 (2) ◽  
pp. 337 ◽  
Author(s):  
Evizal Evizal ◽  
Tharek Abdul Rahman ◽  
Sharul Kamal Abdul Rahim
Keyword(s):  
License Plate ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Plate Number

scholarly journals Radiation Beam Pattern Control of UHF RFID Tag Antenna Design for Automotive License Plates

Electronics ◽  
2021 ◽  
Vol 10 (19) ◽  
pp. 2439
Author(s):  
Youchung Chung ◽  
Teklebrhan H. Berhe
Keyword(s):  
Radio Frequency Identification ◽  
Patch Antenna ◽  
Beam Pattern ◽  
License Plate ◽  
Uhf Rfid ◽  
Long Distance ◽  
Beam Radiation ◽  
Radiation Beam ◽  
Rfid Tag ◽  
On The Road

This paper presents a design of a radio frequency identification (RFID) tag antenna in the ultra-high-frequency (UHF) range, which is applicable to a vehicular license plate attached to a vehicle bumper. The main goals are to first improve the identification ratio by controlling the radiation beam pattern and, second, to control the beam direction. Since every vehicle has a license plate, the available plate structure is used to design the antenna. The shape of the tag is rectangular and has a dimension of 525 mm × 116 mm, which is smaller than the typical size of standard plates, 540 mm × 120 mm, used in Europe and Korea. The fabricated tag antenna, the license plate, and the vehicular bumper are fixed by volt and nut. For vehicle tracking and identification, RFID readers are deployed on the road side. For efficient identification, a long distance passive UHF RFID license plate with a patch antenna is proposed to provide not only line-of-sight identification but also left and right beams. Unlike the general UHF tag antennas, in this paper, the patch antenna is designed to attach to the metal part of the car, the license plate holder. The beam patterns of the RFID tag antenna can be controlled by the patch antenna parameter values. The simulation result demonstrates that the proposed UHF RFID tag antenna has a beam radiation pattern as required at 920 MHz. In addition, the estimated read range of the proposed plate meets the requirement of RFID systems.

Study on Electronic License System and Operation

2014 ◽  
Vol 556-562 ◽  
pp. 2198-2201
Author(s):  
Qi Dang ◽  
Xi Wei Wang ◽  
Jing Lin Guo ◽  
Xue Song Tong
Keyword(s):  
Operating System ◽  
Information Technology ◽  
Cloud Computing ◽  
Metal Plate ◽  
License Plate ◽  
Uhf Rfid ◽  
Practical Application ◽  
Rfid Tag ◽  
License System ◽  
Physical Construction

Electronic license operating system is mainly including passive electronic license applications and information technology systems integration of physical construction ideas. This paper introduces a practical application of the anti-metal UHF RFID tag antenna, relying on the existing license plate, the metal plate as part of the antenna to solve UHF RFID tag for metal surface problems. Establishment of cloud computing, combining sea calculation the physical integration of information systems to meet the needs of car networking operations.

scholarly journals Long-Range UHF RFID Tag for Automotive License Plate

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2521
Author(s):  
Youchung Chung ◽  
Teklebrhan H. Berhe
Keyword(s):  
Radiation Pattern ◽  
Radio Frequency Identification ◽  
High Frequency ◽  
License Plate ◽  
Back Side ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Antenna Type ◽  
Frequency Identification ◽  
Em Simulation

In this paper, various locations of an Ultra High Frequency (UHF) Radio Frequency Identification (RFID) tag on automotive license plates have been considered based on the radiation pattern of the tag antenna. A small, 130 × 50 mm, passive loop antenna type UHF RFID tag for an automotive license plate was simulated with an EM simulation CST program. It was designed to have a larger back-lobe radiation pattern since the front side of the tag faces the back side of the plate holder to protect the tag antenna from bugs and dust when the automobile runs. The tag was attached to the side of a license plate holder with a dimension of 520 × 110 mm, the typical size of the standard license plate. The reflection coefficient of the tag antenna is −21 dB at 920 MHz, and the gain of the tag antenna is 6.29 dBi at the back-lobe. The reading range of the tag antenna with the plate holder, which was measured in an open field, is about 10.3 m, and the reading range of the tag installed on the bumper from the front of the vehicle is 9.4 m. The tag antenna is small enough to apply to a real automobile, and it is applicable because it uses the back-lobe pattern, so it does not require an extra device for protection from damage.

Design and implementation of a passive UHF RFID tag with a temperature and process compensation oscillator

2015 ◽  
Vol 6 (4) ◽  
pp. 171-184
Author(s):  
Liangbo Xie ◽  
Jiaxin Liu ◽  
Yao Wang ◽  
Chuan Yin ◽  
Guangjun Wen
Keyword(s):  
Uhf Rfid ◽  
Rfid Tag ◽  
Passive Uhf Rfid ◽  
Design And Implementation

Design of temperature sensor embedded in Passive UHF RFID Tag

2011 ◽  
Vol 25 (5) ◽  
pp. 468-473
Author(s):  
Weifeng Liu ◽  
Yiqi Zhuang ◽  
Zengwei Qi ◽  
Longfei Tang
Keyword(s):  
Temperature Sensor ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Passive Uhf Rfid

Comparison of Fabrication Techniques for Flexible UHF RFID Tag Antennas [Wireless Corner]

2017 ◽  
Vol 59 (5) ◽  
pp. 159-168 ◽  
Author(s):  
Riccardo Colella ◽  
Almudena Rivadeneyra ◽  
Alberto J. Palma ◽  
Luciano Tarricone ◽  
Luis Fermin Capitan-Vallvey ◽  
...  
Keyword(s):  
Uhf Rfid ◽  
Rfid Tag
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