RADIOFREQUENCY COILS IN IMPLANTABLE DEVICES - MISALIGNMENT ANALYSIS AND DESIGN PROCEDURE
RADIOFREQUENCY COILS IN IMPLANTABLE DEVICES - MISALIGNMENT ANALYSIS AND DESIGN PROCEDURE
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DOI：
10.1109/tbme.1987.326088
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发表时间：
1987-04-01
影响因子：
4.6
通讯作者：
WHITE, RL
中科院分区：
文献类型：
--
作者：
SOMA, M;GALBRAITH, DC;WHITE, RL
射频 (RF) 线圈广泛应用于用于透皮电力和数据传输的植入式设备的设计。线圈失准和配置的实际问题尚未得到研究，本文对射频线圈系统中的失准影响（包括横向和角度失准）进行了详细的理论分析。推导出互感公式，并尽可能提供简化的耦合系数上限和下限。建立了一个设计程序，以最大限度地提高给定配置的线圈耦合，并且配套论文 [1] 讨论了一种电路设计技术，以减少未对准对传输效率的影响。
Radio-frequency (RF) coils are used extensively in the design of implantable devices for transdermal power and data transmission. The practical issues of coil misalignments and configurations have not been investigated, and this paper presents a detailed theoretical analysis of misalignment effects in RF coil systems, including lateral and angular misalignments. Formulas are derived for the mutual inductance and, whenever possible, simplified upper bounds and lower bounds of the coupling coefficient are provided. A design procedure is established to maximize coil coupling for a given configuration, and a companion paper [1] discusses a circuit design technique to reduce the effects of misalignment on transmission efficiency.