Patent ID: 8779629
Filing Date: 2014-07-15
Classification: H02J

Abstract:
1. An apparatus for transmitting and receiving wireless energy using meta-material structures having a zero refractive index, comprising: a wireless energy transmission unit for, when external power is applied thereto, generating wireless energy to be wirelessly transmitted, and then wirelessly transmitting wireless energy, which is normally propagated radially when the generated wireless energy is transmitted, using a magnetic resonance method while concentrating the wireless energy in one direction; and a wireless energy reception unit for wirelessly receiving the wireless energy, transmitted by the wireless energy transmission unit, using the magnetic resonance method while concentrating the wireless energy in one direction, wherein the wireless energy transmission unit comprises a wireless transmission loop configured to, when external power is applied thereto, generate the wireless energy using a resonance frequency based on an inductor L and a capacitor C and then wirelessly transmit the generated wireless energy using the magnetic resonance method and a wireless transmission meta-material structure placed in a wireless transmission path, and configured to have a zero refractive index so as to transmit the wireless energy, which is normally propagated radially when the generated wireless energy is transmitted, while concentrating the wireless energy in one direction, and wherein the wireless transmission meta-material structure includes a substrate configured to have a diameter larger than that of the wireless transmission loop and a meta-material structure configured such that the first meta cells composed by gaps of two thin metal films that are faced to each other in a split ring resonance pattern having the same shape and size are repeatedly arranged on the substrate.