Research on Impedance Prediction of Radio Frequency IDentification Tag Antenna with Folded Dipole Based on Polynomial

Tao HONG; Zehao HE; Tianqi JIANG; Cui WANG; Jiayan CHEN

doi:10.11999/JEIT200598

Volume 43 Issue 4

Apr. 2021

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Article Navigation > Journal of Electronics & Information Technology > 2021 > 43(4): 1098-1105

Tao HONG, Zehao HE, Tianqi JIANG, Cui WANG, Jiayan CHEN. Research on Impedance Prediction of Radio Frequency IDentification Tag Antenna with Folded Dipole Based on Polynomial[J]. Journal of Electronics & Information Technology, 2021, 43(4): 1098-1105. doi: 10.11999/JEIT200598

Citation:

Tao HONG, Zehao HE, Tianqi JIANG, Cui WANG, Jiayan CHEN. Research on Impedance Prediction of Radio Frequency IDentification Tag Antenna with Folded Dipole Based on Polynomial[J]. Journal of Electronics & Information Technology, 2021, 43(4): 1098-1105. doi: 10.11999/JEIT200598

Citation:

Tao HONG, Zehao HE, Tianqi JIANG, Cui WANG, Jiayan CHEN. Research on Impedance Prediction of Radio Frequency IDentification Tag Antenna with Folded Dipole Based on Polynomial[J]. Journal of Electronics & Information Technology, 2021, 43(4): 1098-1105. doi: 10.11999/JEIT200598

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Research on Impedance Prediction of Radio Frequency IDentification Tag Antenna with Folded Dipole Based on Polynomial

doi: 10.11999/JEIT200598

1.
College of Quality & Safety Engineering, China Jiliang University, Hangzhou 310018, China
2.
Hangzhou Zhihui Information Technology Co., Ltd., Hangzhou 310018, China

Funds: Zhejiang Basic Public Welfare Research Project (LGG19E050015)

Received Date: 2020-07-20
Rev Recd Date: 2020-12-22

Available Online: 2020-12-30

Publish Date: 2021-04-20

Abstract

Abstract

In the process of solving the problem of slow impedance calculation speed in the design of Radio Frequency IDentification (RFID) tag antenna, a method of impedance prediction based on polynomial for folded dipole RFID tag antenna is proposed in view of the complex impedance coupling. Firstly, impedance transformation based on antenna size and linearization assumption are used to establish model hypothesis. Then the data are collected from the antenna structure and the correlation analysis and regression fitting are carried out to verify the validity of the hypothesis. Finally, the accuracy, efficiency and universality of the impedance prediction method compared with computer simulation are verified by experiments. The experimental results show that the predicted impedance can greatly shorten the calculation time while maintaining high prediction accuracy when the proposed method replace computer to calculate the impedance of the folded dipole RFID tag antenna, and the method is still applicable to the RFID tag antenna with different bending times in the frequency band used in China.
- Radio Frequency IDentification (RFID),
- Impedance of the antenna,
- Calculated model

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References(18)

References

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