Design of an effective energy receiving adapter for microwave wireless power transmission application

In this paper, we demonstrate the viability of an energy receiving adapter in a 8×8 array form with high power reception efficiency with the resonator of artificial electromagnetic absorber being used as the element. Unlike the conventional reported rectifying antenna resonators, both the size of the element and the separations between the elements are electrically small in our design. The energy collecting process is explained with an equivalent circuit model, and a RF combining network is designed to combine the captured AC power from each element to one main terminal for AC-to-DC conversion. The energy receiving adapter yields a total reception efficiency of 67% (including the wave capture efficiency of 86% and the AC-to-DC conversion efficiency of 78%), which is quite promising for microwave wireless power transmission.

[1]  Hai‐feng Zhang,et al.  Novel triple-band polarization-insensitive wide-angle ultra-thin microwave metamaterial absorber , 2013 .

[2]  Omar M. Ramahi,et al.  Metamaterial electromagnetic energy harvester with near unity efficiency , 2015 .

[3]  Omar M. Ramahi,et al.  A 3 - Dimensional Stacked Metamaterial Arrays for Electromagnetic Energy Harvesting , 2014 .

[4]  M. Latrach,et al.  Hybrid rectenna and monolithic integrated zero-bias microwave rectifier , 2006, IEEE Transactions on Microwave Theory and Techniques.

[5]  Chi-Chih Chen,et al.  Investigation of Rectenna Array Configurations for Enhanced RF Power Harvesting , 2011, IEEE Antennas and Wireless Propagation Letters.

[6]  G. Yang,et al.  A new circularly polarized rectenna for wireless power transmission and data communication , 2005, IEEE Antennas and Wireless Propagation Letters.

[7]  T.-W. Yoo,et al.  Theoretical and experimental investigation of a rectenna element for microwave power transmission , 1992 .

[8]  Suresh Venkatesh,et al.  Experimental realization of a metamaterial detector focal plane array. , 2012, Physical review letters.

[9]  O. Ramahi,et al.  A True Metasurface Antenna , 2016, Scientific Reports.

[10]  Kai Chang,et al.  New 5.8-GHz circularly polarized retrodirective rectenna arrays for wireless power transmission , 2006 .

[11]  Kai Chang,et al.  5.8-GHz circularly polarized dual-diode rectenna and rectenna array for microwave power transmission , 2006 .

[12]  William C. Brown,et al.  The History of Power Transmission by Radio Waves , 1984 .

[13]  Willie J Padilla,et al.  Perfect metamaterial absorber. , 2008, Physical review letters.

[14]  Federico Viani,et al.  Array Designs for Long-Distance Wireless Power Transmission: State-of-the-Art and Innovative Solutions , 2013, Proceedings of the IEEE.

[15]  Xin Fan,et al.  A universal electromagnetic energy conversion adapter based on a metamaterial absorber , 2013, Scientific Reports.

[16]  F. Dincer.  Electromagnetic energy harvesting application based on tunable perfect metamaterial absorber , 2015 .