Title :
RF energy harvesting with multiple antennas in the same space
Author :
Mi, Minhong ; Mickle, Marlin H. ; Capelli, Chris ; Swift, Harold
Author_Institution :
Dept. of Electr. Eng., Pittsburgh Univ., PA, USA
Abstract :
It is highly desirable to increase the amount of energy derived from a given space by an energy-harvesting device. In this paper, multiple energy-harvesting antennas in essentially one space or area are proposed and experimentally studied as a means to increase the energy or power/area ratio. Four cooperating antennas are proposed in a square area that is less than twice the area required for a single antenna. The results obtained suggest that this can be a very promising method for energy harvesting.
Keywords :
antenna arrays; radiofrequency identification; RF energy harvesting; antenna array; energy-harvesting device; Backscatter; Charge pumps; Joining processes; Radio frequency; Radiofrequency identification; Receiving antennas; Remote sensing; Silicon; Space technology; Voltage;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2005.1599171
