Dual Zeroth-Order Resonant USB Dongle Antennas for 4G MIMO Wireless Communications

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td align="left">Frequency (MHz)</td><td align="center">768</td><td align="center">843</td><td align="center">920</td><td align="center">2500</td><td align="center">2700</td></tr><tr><td align="left">Efficiency of antenna 1 (%) </td><td align="center">33</td><td align="center">41</td><td align="center">44</td><td align="center">38</td><td align="center">52</td></tr><tr><td align="left">Efficiency of antenna 2 (%)</td><td align="center">21</td><td align="center">40</td><td align="center">43</td><td align="center">41</td><td align="center">63</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Measured total efficiency of antenna 1 and antenna 2.

International Journal of Antennas and Propagation

tab2

Table 2

Table 2: Dual Zeroth-Order Resonant USB Dongle Antennas for 4G MIMO Wireless Communications 