Title :
Improving the efficiency of wireless power transfer systems using metamaterials
Author :
Yan Zhao ; Vutipongsatorn, Varut ; Leelarasmee, Ekachai
Author_Institution :
Int. Sch. of Eng., Chulalongkorn Univ., Bangkok, Thailand
Abstract :
The investigation of applying metamaterials in the efficiency enhancement for wireless power transfer (WPT) systems is presented in this paper. Three types of metamaterials are considered: the double negative material (DNG), the isotropic μ-negative material (IMNG), and the anisotropic μ-negative material (AMNG). Through the transmission analysis, it is found that evanescent wave components are amplified by the metamaterial slabs, and the amplification is the highest for AMNG due to the presence of resonances. Numerical simulations show that a threefold enhancement in efficiency can be achieved when an AMNG slab is used in the WPT system.
Keywords :
electromagnetic metamaterials; inductive power transmission; metamaterial antennas; numerical analysis; AMNG; DNG; IMNG; WPT system; anisotropic μ-negative material; double negative material; evanescent wave components; isotropic μ-negative material; metamaterial slabs; numerical simulations; three-fold enhancement; transmission analysis; wireless power transfer system efficiency improvement; Magnetic materials; Metamaterials; Slabs; Transmitting antennas; Wireless communication;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2013 10th International Conference on
Conference_Location :
Krabi
Print_ISBN :
978-1-4799-0546-1
DOI :
10.1109/ECTICon.2013.6559537
