超高頻射頻識別小間隔雙標簽天線增益特性研究

彭章友; 任秀方; 孟春陽; 李帥

doi:10.11999/JEIT141371

超高頻射頻識別小間隔雙標簽天線增益特性研究

doi: 10.11999/JEIT141371

基金項目:

上海市科學技術委員會(12510500600)

計量
- 文章訪問數(shù): 1134
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- PDF下載量: 473
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2014-10-27
- 修回日期: 2015-01-08
- 刊出日期: 2015-07-19

Study on Gain Characteristics of Dual Ultra-high-frequency Radio Frequency Identification Tag Antennas with Small Interval

摘要

摘要: 該文針對超高頻射頻識別(UHF RFID)標簽自身參數(shù)和標簽間互相耦合對標簽天線增益的影響，推導了相應的理論模型。首先從輻射場的角度將標簽等效為帶集總負載的對稱振子天線，然后基于對稱振子天線陣列的理論建立了小間隔雙標簽天線增益的簡化模型，并對密集多標簽應用場合進行了簡單拓展，仿真研究驗證了所建模型的有效性。最后對增益的方向性和輻射效率進行了研究，研究結果對密集標簽的性能研究具有一定的指導意義。
- 天線 /
- 射頻識別 /
- 密集標簽 /
- 互相耦合
Abstract: Parameters of the Ultra-High-Frequency Radio Frequency IDentification (UHF RFID) tags and the mutual coupling effect have great impact on antenna gain, and a corresponding theoretical model is developed. Firstly, from the perspective of the radiation field, the tag is equivalent to dipole antenna with lumped load. Then based on the theory of dipole array, a simplified gain model of dual tag antennas with small interval is derived, and application of multiple tags is expanded simply. The simulation results show that the model is effective. Finally, the directivity and radiation efficiency are studied. The results provide a theoretical guidance for the research of intensive tags performance.
- Antenna /
- Radio Frequency IDentification (RFID) /
- Intensive tags /
- Mutual coupling

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參考文獻(19)

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