Spherical Helices for Resonant Wireless Power Transfer

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="426574.fig.007a" src="https://static.hindawi.com/articles/ijap/volume-2013/426574/figures/426574.fig.007a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Radiation efficiency</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="426574.fig.007b" src="https://static.hindawi.com/articles/ijap/volume-2013/426574/figures/426574.fig.007b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Mode ratio</td></tr></table></td></tr></table>

<table>Radiation properties of examined SHAs from Table <a href="../tab2/">2</a> versus frequency.</table>

International Journal of Antennas and Propagation

fig7

Figure 7

Figure 7: Spherical Helices for Resonant Wireless Power Transfer 