Analysis of RF Front-End Performance of Reconfigurable Antennas with RF Switches in the Far Field

<table>Measured reflection coefficients (<svg height="16.15" id="M48" style="vertical-align:-3.276pt" version="1.1" viewbox="0 0 29.275 16.15" width="29.275" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.012)"><path d="M162 -163h-61v866h61v-866z" id="x7C"></path></g><g transform="matrix(.017,-0,0,-.017,4.533,12.012)"><path d="M457 488l-30 -3q-17 148 -131 148q-53 0 -84.5 -34.5t-31.5 -82.5q0 -42 25.5 -72t74.5 -62l33 -22q63 -42 95 -85t32 -102q0 -84 -67 -137t-163 -53q-58 0 -113 22t-70 43l-4 152l27 4q4 -32 15 -62.5t31 -59.5t53.5 -47t76.5 -18q56 0 92 35t36 96q0 39 -25 70t-78 68
l-31 22q-32 23 -53.5 41.5t-45 57t-23.5 77.5q0 82 58 132.5t156 50.5q46 0 101 -17l18.5 -6t17 -6t8.5 -3q-4 -55 0 -147z" id="x1D446"></path></g>
<g transform="matrix(.012,-0,0,-.012,12.687,16.087)"><path d="M384 0h-275v27q67 5 81.5 18.5t14.5 68.5v385q0 38 -7.5 47.5t-40.5 10.5l-48 2v24q85 15 178 52v-521q0 -55 14.5 -68.5t82.5 -18.5v-27z" id="x31"></path></g><g transform="matrix(.012,-0,0,-.012,18.399,16.087)"><path d="M384 0h-275v27q67 5 81.5 18.5t14.5 68.5v385q0 38 -7.5 47.5t-40.5 10.5l-48 2v24q85 15 178 52v-521q0 -55 14.5 -68.5t82.5 -18.5v-27z" id="x31"></path></g>
<g transform="matrix(.017,-0,0,-.017,24.737,12.012)"><path d="M162 -163h-61v866h61v-866z" id="x7C"></path></g>
</svg>) of the proposed reconfigurable antennas; (a) the monopole with Diode I, (b) the monopole with Diode II, (c) the monopole with MEMS switch, (d) the slot with Diode I, (e) the slot with Diode II, and (f) the slot with MEMS switch.</table>

International Journal of Antennas and Propagation

fig13

Figure 13

Figure 13: Analysis of RF Front-End Performance of Reconfigurable Antennas with RF Switches in the Far Field 