TY - JOUR
T1 - Novel l-slot matching circuit integrated with circularly polarized rectenna for wireless energy harvesting
AU - Mansour, Mohamed M.
AU - Kanaya, Haruichi
N1 - Funding Information:
Acknowledgments: We would like to thank Yoshitomi, E-JUST center, who helped us in measuring the radiation pattern of the antenna. In addition, we are thankful to our colleagues who provided their expertise and contributions for conducting this research. This work was partly supported by VLSI Design and Education Center (VDEC), the University of Tokyo in collaboration with Keysight Corporation. This work was partly supported by CREST (JPMJCR1431), KAKENHI (JP18K04146), Collaborative Research Based on Industrial Demand Program, JST and the Telecommunications Advancement Foundation.
Funding Information:
Funding: This work was funded by NEDO SIP (New Energy and Industrial Technology Development Organization Core Cooperative Researcher Cross-ministerial, Strategic Innovation Promotion Program). Also, partly funded by CREST (JPMJCR1431), KAKENHI (JP18K04146), Collaborative Research Based on Industrial Demand Program, JST and the Telecommunications Advancement Foundation. In addition part of the budget was funded by the Ministry of Higher Education in Egypt (MoHE).
Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2019/6
Y1 - 2019/6
N2 - Radio frequency (RF) power harvesting allows wireless power delivery concurrently to several remote RF devices. This manuscript presents the implementation of a compact, reliable, effective, and flexible energy harvesting (EH) rectenna design. It integrates a simple rectifier circuit with a circularly polarized one-sided slot dipole antenna at 2.45 GHz Industrial, Scientific, Medical (ISM) frequency band for wireless charging operation at low incident power densities, from 1 to 95 μW/cm2. The rectenna structure is printed on a single layer, low cost, commercial FR4 substrate. The integration of the rectifier and antenna produces a low-profile and high performance circularly polarized rectenna. In order to maximize the system efficiency, the matching circuit introduced between the rectifier and antenna is optimized for a minimum number of discrete components and it is constructed using multiple of L-slot defects in the ground plane. For a given input power of −6 dBm intercepted by the circularly polarized antenna with 3 dBi gain, the peak RF-DC (radio frequency-direct current) conversion efficiency is 59.5%. The rectenna dimensions are 41 × 35.5 mm2. It is demonstrated that the output power from the proposed rectenna is higher than the other published designs with a similar antenna size under the same ambient condition. Thanks to its compact size, the proposed rectenna finds a range of potential applications for wireless energy charging.
AB - Radio frequency (RF) power harvesting allows wireless power delivery concurrently to several remote RF devices. This manuscript presents the implementation of a compact, reliable, effective, and flexible energy harvesting (EH) rectenna design. It integrates a simple rectifier circuit with a circularly polarized one-sided slot dipole antenna at 2.45 GHz Industrial, Scientific, Medical (ISM) frequency band for wireless charging operation at low incident power densities, from 1 to 95 μW/cm2. The rectenna structure is printed on a single layer, low cost, commercial FR4 substrate. The integration of the rectifier and antenna produces a low-profile and high performance circularly polarized rectenna. In order to maximize the system efficiency, the matching circuit introduced between the rectifier and antenna is optimized for a minimum number of discrete components and it is constructed using multiple of L-slot defects in the ground plane. For a given input power of −6 dBm intercepted by the circularly polarized antenna with 3 dBi gain, the peak RF-DC (radio frequency-direct current) conversion efficiency is 59.5%. The rectenna dimensions are 41 × 35.5 mm2. It is demonstrated that the output power from the proposed rectenna is higher than the other published designs with a similar antenna size under the same ambient condition. Thanks to its compact size, the proposed rectenna finds a range of potential applications for wireless energy charging.
UR - http://www.scopus.com/inward/record.url?scp=85069703641&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85069703641&partnerID=8YFLogxK
U2 - 10.3390/electronics8060651
DO - 10.3390/electronics8060651
M3 - Article
AN - SCOPUS:85069703641
VL - 8
JO - Electronics (Switzerland)
JF - Electronics (Switzerland)
SN - 2079-9292
IS - 6
M1 - 653
ER -