Abstract—

In this paper, a modified design of a planar square-loop antenna is presented for Electronic Article Surveillance (8.2 MHz) Radio Frequency Identification applications. The main purpose of the proposed design is to enhance the transmission efficiency of a loop antenna without disturbing other performance parameters. For that purpose, the spacing between the loop turns is adjusted in such a way that the coupling between similar loop antennas can be enhanced. Therefore, from measured results, it is observed that the proposed antenna provides a transmission efficiency of 63.92% at a center frequency of 8.198 MHz, and it also provides a –10 dB impedance bandwidth of 6 kHz.

中文翻译：

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用于电子商品监视射频识别应用的改进型平面正方形天线

摘要—

在本文中，提出了一种用于电子商品监视（8.2 MHz）射频识别应用的平面方形环形天线的改进设计。提出的设计的主要目的是在不干扰其他性能参数的情况下提高环形天线的传输效率。为此，以这样的方式调节环形匝之间的间隔，使得可以增强相似环形天线之间的耦合。因此，从测量结果可以看出，所建议的天线在中心频率8.198 MHz时的传输效率为63.92％，并且还提供了6 kHz的–10 dB阻抗带宽。