Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants

被引：4
|
作者：
Le-Huu, Hoang [1 ]
Seo, Chulhun [1 ]
机构：
[1] Soongsil Univ, Dept Informat & Commun Convergence, Seoul 06978, South Korea
来源：
IEEE ACCESS | 2023年 / 11卷
基金：
新加坡国家研究基金会;
关键词：
Anti-symmetric wing transmitter (ASW-Tx); biomedical implants; impedance matching network (IMN); misalignment tolerance; wireless power transfer (WPT); TRANSFER SYSTEM; TRANSMISSION; ANTENNA; COIL;
D O I：
10.1109/ACCESS.2023.3257343
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents an anti-symmetric wing transmitter (ASW-Tx) for angular misalignment insensitive WPT to biomedical implants. Symmetrical field distribution on two orthogonal planes of Oxz and Oyz are analyzed theoretically to obtain stable power transfer efficiency (PTE) by rotating Rx around the Oz axis. Moreover, toroidal magnetic fluxes are generated by ASW to adapt with different Rx's tilted angles on Ox and Oy axes. An impedance matching network (IMN) is proposed and implemented to match ASW-Tx's impedance to source impedance. An implantable Rx is employed to verify the ASW-Tx's performance. Experimental measurements are carried out with selected Rx's tilted angles (vary from 0 degrees to 90 degrees around Ox, Oy, and Oz axis) to validate the effectiveness of proposed ASW-Tx's. Verification results show that a stable efficiency variation was achieved with a maximum fluctuation of 4 dB by rotating Rx tilted angles. Moreover, the ASW-Tx can supply power effectively with a transmission efficiency of up to-18.4 dB to an implantation depth of 15 mm.
引用
收藏
页码：26375 / 26382
页数：8
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