Hosain Md Kamal, Kouzani Abbas Z, Tye Susannah J, Samad Mst Fateha, Kale Rajas P, Bennet Kevin E, Manciu Felicia S, Berk Michael
School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia.
School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia.
Med Eng Phys. 2015 Oct;37(10):1020-6. doi: 10.1016/j.medengphy.2015.07.003. Epub 2015 Aug 28.
This paper presents the development of an energy harvesting circuit for use with a head-mountable deep brain stimulation (DBS) device. It consists of a circular planar inverted-F antenna (PIFA) and a Schottky diode-based Cockcroft-Walton 4-voltage rectifier. The PIFA has the volume of π × 10(2) × 1.5 mm(3), resonance frequency of 915 MHz, and bandwidth of 16 MHz (909-925 MHz) at a return loss of -10 dB. The rectifier offers maximum efficiency of 78% for the input power of -5 dBm at a 5 kΩ load resistance. The developed rectenna operates efficiently at 915 MHz for the input power within -15 dBm to +5 dBm. For operating a DBS device, the DC voltage of 2 V is recorded from the rectenna terminal at a distance of 55 cm away from a 26.77 dBm transmitter in free space. An in-vitro test of the DBS device is presented.
本文介绍了一种用于可穿戴式深部脑刺激（DBS）设备的能量收集电路的开发。它由一个圆形平面倒F天线（PIFA）和一个基于肖特基二极管的考克饶夫-沃尔顿4倍压整流器组成。该PIFA的体积为π×10(2)×1.5 mm(3)，谐振频率为915 MHz，在回波损耗为-10 dB时带宽为16 MHz（909 - 925 MHz）。在5 kΩ负载电阻下，该整流器对于-5 dBm的输入功率提供78%的最大效率。所开发的整流天线在915 MHz下对于-15 dBm至+5 dBm范围内的输入功率能高效运行。为了操作DBS设备，在自由空间中距离26.77 dBm发射机55 cm处，从整流天线终端记录到2 V的直流电压。本文还展示了DBS设备的体外测试。
