Switched-Antenna Low-Frequency (LF) Radio-Frequency Identification (RFID) for Ornithology
Switched-Antenna Low-Frequency (LF) Radio-Frequency Identification (RFID) for Ornithology
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DOI：
10.1109/jrfid.2020.2971534
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发表时间：
2020-02
影响因子：
3.1
通讯作者：
J. Wallace;Leah C. Diamantides;Kwanho C Ki;Michael W. Butler
中科院分区：
文献类型：
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作者：
J. Wallace;Leah C. Diamantides;Kwanho C Ki;Michael W. Butler
虽然低频（LF）射频识别（RFID）是许多鸟类跟踪研究的事实上的标准，但它受到低范围（5 - 10 cm）和多个标签碰撞问题的阻碍。简单的概念，增加现有的RFID收发器与开关天线阵列的探索，以克服这些困难。分析表明，开关元件的非理想行为会导致失谐和串扰效应，这在设计低频天线时应加以考虑。一个开源的原型RFID阅读器与集成开关阵列支持多达12个天线的开发和介绍。受控实验室测试表明，覆盖37\，\，{\textrm {cm}\x 37\，\，{\textrm {cm}}\x 37\，\，{\textrm {cm}}\x 37\，\，{\textrm {cm}\x 37\，\，{\textrm {cm}}\x 37\，\，{\textrm {cm}\x 37\，\textrm {cm}\x 37\，\textrm {cm}\x 37\，\textrm {cm}\x 37\，\，\textrm {cm}\x 37\，\textrm {cm}\x 37\，\textrm {cm}\x 37\，\，\textrm {cm}\x 37\，\，\textrm {cm}\x 37\，\，\textrm {cm}\x 37\，四个小时的现场测试与标记的家雀表明检测可靠性为94%和78%的4元馈线和8元垫阵列，分别。
Although low-frequency (LF) radio-frequency identification (RFID) is the de facto standard for many ornithological tracking studies, it is hampered by low range (5-10 cm) and the multiple tag collision problem. The simple concept of augmenting existing RFID transceivers with a switched antenna array is explored to overcome these difficulties. Analysis shows that non-ideal behavior of the switch elements can lead to detuning and cross-talk effects that should be considered when designing the LF antennas. An open-source prototype RFID reader with an integrated switch array supporting up to 12 antennas is developed and presented. Controlled laboratory tests indicate good read reliability of an 8-element antenna matrix covering a $37\,\,{\textrm {cm}} \times 37\,\,{\textrm {cm}}$ ground area and a 4-element array placed on a bird feeder, but relative tag-antenna orientation must be carefully considered. A four-hour field test with tagged house sparrows indicates detection reliability of 94% and 78% for the 4-element feeder and 8-element mat arrays, respectively.