TY - JOUR
T1 - Simultaneous Wireless Power and Information Transfer Using Coupled Co-Existing Defected Ground Structure Resonators
AU - Barakat, Adel
AU - Alshhawy, Shimaa
AU - Yoshitomi, Kuniaki
AU - Pokharel, Ramesh K.
N1 - Funding Information:
Manuscript received July 13, 2020; accepted August 10, 2020. Date of publication August 13, 2020; date of current version January 29, 2021. This work was supported in part by the Japan Society for the Promotion of Science through Postdoctoral Fellowship under Grant 19F19058 [Postdoctoral Fellowships for Research in Japan (Standard)], and in part by Progress 100 (Invitation Program for Top Global Researchers). This brief was recommended by Associate Editor L. F. C. Alberto. (Corresponding author: Adel Barakat.) The authors are with the Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0385, Japan (e-mail: eng.adeltawfik@gmail.com; shimaa8512@gmail.com; yoshitomi@ ed.kyushu-u.ac.jp; pokharel@ed.kyushu-u.ac.jp).
Publisher Copyright:
© 2004-2012 IEEE.
PY - 2021/2
Y1 - 2021/2
N2 - 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 \times15 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.
AB - 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 \times15 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.
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U2 - 10.1109/TCSII.2020.3016385
DO - 10.1109/TCSII.2020.3016385
M3 - Article
AN - SCOPUS:85100269129
SN - 1549-7747
VL - 68
SP - 632
EP - 636
JO - IEEE Transactions on Circuits and Systems II: Express Briefs
JF - IEEE Transactions on Circuits and Systems II: Express Briefs
IS - 2
M1 - 9166524
ER -