A Novel Antenna for UHF RFID Near-Field Applications
Abstract
:1. Introduction
2. Antenna Design
2.1. The Theory of Antenna Design
2.2. The Measurement of Near-Field RFID Reader Antennas
2.2.1. The Reading Rate of Tags
2.2.2. The Reading/Writing Uniform Area
3. Results
3.1. Reflection Coefficient
3.2. Far-Field Gain and Reading Efficiency
3.3. Electric Field Distribution
3.4. Parametric Analysis
3.4.1. Number of Spiral Loops
3.4.2. Loop Spacing
3.4.3. Antenna Unit
3.4.4. Array
4. Discussion
4.1. The Electric Field Distribution along X-Axis (Ex) and Y-Axis (Ey)
4.2. Reading Area
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Parameter | L | d | W | h |
---|---|---|---|---|
Dimension (mm) | 126 | 7.5 | 2.52 | 1.6 |
Ref. | Coupled Mode | Field Distribution along the X-/Y-Axis | Tag Test |
---|---|---|---|
[15] | Magnetic coupled | Non-uniform | Misread |
[23] | Electric coupled | Non-uniform | Misread |
[24] | Electric coupled | Non-uniform | Misread |
[26] | Electric coupled | Non-uniform | Misread |
[27] | Electric coupled | Non-uniform | Misread |
Proposed | Electric coupled | Uniform | Accurate read |
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Yao, Y.; Ge, Q.; Yu, J.; Chen, X. A Novel Antenna for UHF RFID Near-Field Applications. Electronics 2021, 10, 1310. https://doi.org/10.3390/electronics10111310
Yao Y, Ge Q, Yu J, Chen X. A Novel Antenna for UHF RFID Near-Field Applications. Electronics. 2021; 10(11):1310. https://doi.org/10.3390/electronics10111310
Chicago/Turabian StyleYao, Yuan, Qiuyue Ge, Junsheng Yu, and Xiaodong Chen. 2021. "A Novel Antenna for UHF RFID Near-Field Applications" Electronics 10, no. 11: 1310. https://doi.org/10.3390/electronics10111310