Simultaneous Wireless Power and Information Transfer Using Coupled Co-Existing Defected Ground Structure Resonators
Simultaneous Wireless Power and Information Transfer Using Coupled Co-Existing Defected Ground Structure Resonators
复制标题
使用耦合共存的缺陷接地结构谐振器同时进行无线电力和信息传输
DOI：
10.1109/tcsii.2020.3016385
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
and R.K. Pokharel
中科院分区：
文献类型：
--
作者：
A. Barakat;S. Alshhawy;K. Yoshitomi;and R.K. Pokharel
在本文中，我们使用共存的耦合缺陷接地结构(DGS)谐振器实现了一种同时无线功率和信息传输(WPIT)系统。首先，在同时带阻滤波(BSF)响应的设计中使用了共存的DGS谐振器。然后，耦合两组共存的DGS-BSF，实现同时的WPIT。DGS谐振器为螺旋椭圆形，共用一个地平面。为了提高功率载波的KQ乘积，减少与信息载体的交叉耦合，对其耦合特性进行了研究。制作了一台尺寸为30 mm×15 mm的发射机(TX)和接收机(RX)样机。TX和RX之间的间隔为15 mm。在这种情况下，在49.6 MHz和149 MHz下，测量的效率分别为71%和66%，在49.6 MHz时，功率通道TX和信息通道RX之间的隔离度为39dB。
In this brief, we realize a simultaneous wireless power and information transfer (WPIT) system using co-existing coupled defected ground structure (DGS) resonators. First, co-existing DGS resonators are utilized in the design of simultaneous band stop filter (BSF) responses. Then, coupling two sets of co-existing DGS-BSFs achieves simultaneous WPIT. The DGS resonators have spiral elliptical-shape and share the same ground plane. The coupling characteristics are studied to improve the kQ-product of power carrier and reduce the cross-coupling with the Information carrier. A prototype is fabricated having a size 30 mm × 15 mm for both transmitter (TX) and receiver (RX). The separation between TX and RX is 15 mm. At this separation, the measured efficiencies are 71% and 66% at 49.6 MHz and 149 MHz, respectively, and the isolation between the power channel TX and the information channel RX is 39 dB at 49.6 MHz.