Due to the effect of near-field coupling, electromagnetic interference (EMI) filters with same components but different layouts show large discrepancy in their filtration performance.
由于近场耦合效应的影响,EMI滤波器元件相同但是布局不同时,在滤波性能上会表现出极大的差异。
参考来源 - 布局对EMI滤波器性能影响的研究So far there are some problems about methods of calibrations of antennas, such as near-field coupling and balun effects to tests, etc.
对于天线校准的方法,至今仍然有一些问题尚未很好地解决,譬如未考虑近场耦合问题以及平衡不平衡转换器对天线系数测量结果的影响等等。
参考来源 - EMC线天线在低频段近场耦合的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Passive near field coupling antenna is widely used in Radio Frequency Identification(RFID) system.
RFID读写系统多采用无源近场耦合天线。
With the aim of achieving high coupling power of RWG SLDs into SMFs, the structure dependences of the output power and the near field pattern are investigated.
为了提高脊波导结构的超辐射二极管（SLD）与单模光纤的耦合功率，研究了有源区与脊之间的残留层和上光限制层的厚度对SLD输出功率和近场光斑的影响。
This paper mainly studies the coupling error caused by induction voltage phase difference, and fluctuation of directional sensitivity caused by changes in near-field difference slope.
本文着重研究了因近场感应电压相位差引起的耦合误差，以及近场天线差斜率变化引起的定向灵敏度的变化；
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