发表机构
George Mason University; Twinleaf LLC（乔治梅森大学; 双叶有限责任公司）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文利用一对正交偏置的集成射频原子磁力计实现三维射频磁场矢量重建，识别相位模糊死区，并在无屏蔽环境中验证了高精度重建，为便携式定向传感奠定基础。
AI 中文摘要
我们演示了使用一对集成射频原子磁力计，在正交偏置磁场方向下运行，实现三维射频（RF）磁场矢量的重建。理论和实验分析识别出一个相位模糊死区，当两个传感器的响应变得几乎相同时，该死区限制了重建。在无屏蔽实验室环境中进行的测量，展示了射频磁场方向的准确重建，并验证了重建精度对信号不平衡的预测依赖性。这些结果确立了集成射频原子磁力计作为一种紧凑且灵敏的平台，用于定向射频磁场传感，特别是在低频下，并为便携式源定位和场映射应用提供了基础。
英文摘要
We demonstrate reconstruction of three-dimensional radio-frequency (RF) magnetic-field vectors using a pair of integrated RF atomic magnetometers operated with orthogonal bias-field orientations. A theoretical and experimental analysis identifies a phase-ambiguity dead band that limits reconstruction when the two sensor responses become nearly identical. Measurements performed in an unshielded laboratory environment demonstrate accurate reconstruction of RF magnetic-field orientations and validate the predicted dependence of reconstruction accuracy on signal imbalance. These results establish integrated RF atomic magnetometers as a compact and sensitive platform for directional RF magnetic-field sensing, particularly at low frequencies, and provide a foundation for portable source-localization and field-mapping applications.
