Efficient Metasurface Rectenna for Electromagnetic Wireless Power Transfer and Energy Harvesting

Abstract

This work presents a design for a metasurface that provides near-unity electromagnetic energy harvesting and RF channeling to a single load. A metasurface and a feeding network were designed to operate at 2.72 GHz to deliver the maximum power to a single load. Numerical simulations show that the metasurface can be highly efficient delivering the maximum captured power to one load using a corporate feed network reaching Radiation-to-RF conversion efficiency as high as 99%. A prototype was fabricated incorporating a rectification circuit. Measurements demonstrated that the proposed metasurface harvester provides Radiation-to-DC conversion efficiency of more than 55%, which is significantly higher than earlier designs reported in the literature.

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

“…Prior to it, complete illustration about the microwave antennas in RF energy harvesting are presented with complete design perspective. A comparative study along with performatory analysis of microwave antennas are presented in Table ; keeping intact with rectenna characteristics: operating frequency, realized gain, polarization diversity, input power levels, and RF‐to‐DC power conversion efficiency, which was not in the scope of review papers for RF energy harvesting available in the open literature. Technically, to pursue clear understanding about tradeoffs of modern RF systems; five different cases of planar antennas (monopole antennas) at different bands with reflector surfaces and integrated with rectifier circuits are designed, simulated and analyzed by using FDTD domain solver (CST microwave studio) and circuit solver (advanced design system).…”

“…The relevant theories of basic forms of antennas are available in open literature . It is further classified into high performance antennas, metamaterial antennas, CP antennas, reconfigurable antennas, and array antennas . It is a strong belief that prerequisites need to be cleared before using the implicit technique in proposed antenna models.…”

“…[107][108][109] The relevant theories of basic forms of antennas are available in open literature. 36,65,70,75,80,85,91,96,101,104,107 It is further classified into high performance antennas, [110][111][112][113]159 metamaterial antennas, [114][115][116][117][160][161][162] CP antennas, [118][119][120][121][122][123][124][125][126][127][164][165][166][167][168][169][170][171][172][173][174][175][176][177] reconfigurable antennas,…”

Development of Multiple-Frequency Wireless Coordinative Motor Drives

“…This problem not only limits their flexibility, but also deters their applicability [16,17]. As the WPT can effectively resolve this problem, it shows great potential for many industrial applications [18][19][20]. Nevertheless, almost all these applications rely on using WPT to perform battery charging first, and then the charged battery feeds the devices, appliances or vehicles afterwards [21,22].…”

Omnidirectional Wireless Power Transfer System With Multiple Receivers and a Single Wire Wound Spiral Transmitter

“…Since a novel technology based on magnetic resonant coupling wireless power transfer (MRCWPT) was proposed by researchers of MIT in 2007 [1], MRCWPT system has been widely applied in various fields from daily electrical products, medical equipment to aerospace fields [2][3][4]. MRCWPT system can solve the problems of conventional wired power transfer system, such as inadequate security, complex wiring, and frequent wire failures [5][6][7][8]. Due to the booming development of electric cars, consumer electronics, robots, portable devices, and other fields, MRCWPT technology has attracted much attention because of its great development prospect and broad market demand in the field of charging [9][10][11][12][13].…”