一种用于RFID读写器的小型短路带圆极化天线

2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI:10.1109/iWEM53379.2021.9790561

Haikang Ji, Hengyan Hu, Yan Chen, Yan Deng, Lei Yang

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引用次数: 0

摘要

提出了一种用于射频识别(RFID)阅读器的小型化带短路带圆极化微带天线。小型化天线的尺寸是通过短路带与地的连接所提供的容性负载来实现的。天线的整体尺寸为80mm×80mm×1.6mm(0.24λ×0.24λ×0.0048λ)。仿真结果表明，该天线的阻抗带宽(回波损耗在-10 dB以下)为19 MHZ (894-913 MHZ)，轴比在-3 dB以下为11 MHZ (897-908 MHZ)，整个带宽的峰值增益为-5.6 dBi。

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A Miniaturized Circularly Polarized Antenna with Short Circuit Strip for RFID Reader

A miniaturized circularly polarized microstrip antenna with a short circuit strip for Radio-Frequency identification (RFID) reader is proposed in this paper. The size of the miniaturized antenna is realized by the capacitive load provided by the connection between short-circuit strip and ground. The overall size of the antenna is 80mm×80mm×1.6mm(0.24λ×0.24λ×0.0048λ). Simulated results prove that the impedance bandwidth of this antenna (where return loss below -10 dB) is 19 MHZ (894-913 MHZ), and its axial ratio below -3 dB is 11 MHZ (897-908 MHZ), and the peak gain is -5.6 dBi across the bandwidth.

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来源期刊

2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)

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