A Rectangular Planar Spiral Antenna for GIS Partial Discharge Detection

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td align="left">Frequency (MHz)</td><td align="center">500</td><td align="center">800 </td><td align="center">1000 </td><td align="center">1500 </td><td align="center">2000 </td><td align="center">3000 </td></tr><tr><td align="left">Gain (dB)</td><td align="center">−12.6</td><td align="center">−1.4</td><td align="center">1.3</td><td align="center">3.2</td><td align="center">5.1</td><td align="center">3.8</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Measured gain of the quasi-TEM horn antenna.

International Journal of Antennas and Propagation

tab3

Table 3

Table 3: A Rectangular Planar Spiral Antenna for GIS Partial Discharge Detection 