密集布放環(huán)境下的標(biāo)簽互阻設(shè)計(jì)方法

彭章友; 孟春陽(yáng); 任秀方; 李帥

doi:10.11999/JEIT141340

密集布放環(huán)境下的標(biāo)簽互阻設(shè)計(jì)方法

doi: 10.11999/JEIT141340

基金項(xiàng)目:

上海市科學(xué)技術(shù)委員會(huì)(12510500600)資助課題

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出版歷程
- 收稿日期: 2014-10-20
- 修回日期: 2014-12-20
- 刊出日期: 2015-06-19

Design of Stacked Tags for Mutual Impedance in Intensive Distribution Environment

摘要

摘要: 在密集布放環(huán)境中，超高頻射頻識(shí)別標(biāo)簽(UHF RFID)會(huì)受到相鄰標(biāo)簽的干擾產(chǎn)生互阻抗，導(dǎo)致讀取率下降?；诙丝诰W(wǎng)絡(luò)和八木陣列天線(xiàn)的理論，該文分析天線(xiàn)結(jié)構(gòu)與互阻抗的關(guān)系，并解釋標(biāo)簽天線(xiàn)傳輸系數(shù)和增益的變化原因。進(jìn)而提出一種密集布放環(huán)境中的標(biāo)簽互阻設(shè)計(jì)方法。仿真和測(cè)試結(jié)果表明，新標(biāo)簽不僅單一性能良好，且互相間的干擾小，適用于多標(biāo)簽密集布放環(huán)境中的射頻識(shí)別系統(tǒng)。
- 無(wú)線(xiàn)通信 /
- 標(biāo)簽天線(xiàn) /
- 密集布放 /
- 互阻抗 /
- 傳輸系數(shù)
Abstract: In the dense distribution environment, the Ultra-High Frequency Radio-Frequency IDentification (UHF RFID) tags are interfered by the mutual impedance of adjacent tags, which can lead to a decline in reading rate. Based on the two-port network and Yagi-Uda antenna array theory, this paper firstly analyzes the relationship of antenna structure and mutual impedance. Then, the reasons for the change of the tag antenna transmission coefficient and the gain are explained. At last, a design of stacked tags for mutual impedance in intensive distribution environment is proposed. The numerical simulation and measurement results show that the new kind of RFID tag, not only has better performance in stand-alone scenario, but also has less interference between each other. It is suitable for RFID system in dense environment of multiple tags.
- Wireless communication /
- Tag antenna /
- Dense environments /
- Mutual impedance /
- Transmission coefficient

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參考文獻(xiàn)(20)

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