Antenna Characterization for Wireless Power-Transmission System Using Near-Field Coupling
Antenna Characterization for Wireless Power-Transmission System Using Near-Field Coupling
复制标题
使用近场耦合的无线功率传输系统的天线表征
DOI：
10.1109/map.2012.6309161
复制
发表时间：
2012
影响因子：
3.5
通讯作者：
K. Sawaya
中科院分区：
文献类型：
--
作者：
Qiang Chen;K. Ozawa;Q. Yuan;K. Sawaya
从天线的角度研究了近场耦合的无线电能传输。两种类型的天线-偶极和环形天线-分别用作电近场耦合和磁近场耦合的发射天线和接收天线。阐明了功率传输效率与天线的几何形状、天线的电气尺寸、天线的阻抗匹配、天线和阻抗匹配电路中的欧姆损耗之间的关系。获得了若干观察结果，证明了与近场耦合相关联的无线电力传输系统中的阻抗匹配和欧姆损耗对电力传输效率的影响。
A fundamental study was focused on the investigation of wireless power transmission by near-field coupling from the view point of the antennas. Two types of antennas - dipole and loop antennas - were used as the transmitting antenna and the receiving antenna for electrical near-field coupling and for magnetic near-field coupling, respectively. The relationships among the power-transmission efficiency and the antennas' geometries, the antennas' electrical sizes, the impedance matching of the antennas, and the ohmic losses in the antennas and the impedance-matching circuits were clarified. Several observations were obtained, demonstrating the influence on the power-transmission efficiency of the impedance matching and ohmic losses in the wireless power-transmission system associated with near-field coupling.