A Small Ku-Band Polarization Tracking Active Phased Array for Mobile Satellite Communications

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="747629.fig.0018a" src="https://static.hindawi.com/articles/ijap/volume-2013/747629/figures/747629.fig.0018a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Horizontal polarization   </td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="747629.fig.0018b" src="https://static.hindawi.com/articles/ijap/volume-2013/747629/figures/747629.fig.0018b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Vertical polarization </td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="747629.fig.0018c" src="https://static.hindawi.com/articles/ijap/volume-2013/747629/figures/747629.fig.0018c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>Diagonal polarization</td></tr></table></td></tr></table>

<table>The polarization tracking patterns measured at 12.5 GHz with beam scanned to<svg height="13.1375" id="M81" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 27.15 13.1375" width="27.15" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,5.725,12.875)"><path d="M456 178h-96v-72q0 -51 12.5 -62.5t72.5 -16.5v-27h-256v27q65 5 78 17t13 62v72h-260v28q182 271 300 426h40v-407h96v-47zM280 225v295h-2q-107 -148 -196 -295h198z" id="x34"></path></g><g transform="matrix(.017,-0,0,-.017,13.884,12.875)"><path d="M241 635q53 0 94 -28.5t63.5 -76t33.5 -102.5t11 -116q0 -58 -11 -112.5t-34 -103.5t-63.5 -78.5t-94.5 -29.5t-95 28t-64.5 75t-34.5 102.5t-11 118.5q0 58 11.5 112.5t34.5 103t64.5 78t95.5 29.5zM238 602q-32 0 -55.5 -25t-35.5 -68t-17.5 -91t-5.5 -105
q0 -76 10 -138.5t37 -107.5t69 -45q32 0 55.5 25t35.5 68.5t17.5 91.5t5.5 105t-5.5 105.5t-18 92t-36 68t-56.5 24.5z" id="x30"></path></g>
<g transform="matrix(.012,-0,0,-.012,22.05,4.712)"><path d="M326 255q0 -56 -41 -96t-99 -40t-99 40t-41 96t41 96t99 40t99 -40t41 -96zM274 255q0 38 -25.5 65t-62.5 27t-62.5 -27t-25.5 -65t25.5 -65t62.5 -27t62.5 27t25.5 65z" id="x2218"></path></g>
</svg>. </table>

International Journal of Antennas and Propagation

fig18

Figure 18

Figure 18: A Small Ku-Band Polarization Tracking Active Phased Array for Mobile Satellite Communications 