Hybrid Utilization of Loading Techniques and Cavity Groove for Performance Enhancement of the UWB (2–18 GHz) Spiral Antenna

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Performance metric</td><td class="align_center">Benchmark value</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Boresight gain</td><td class="align_center">At least −5 dBi</td></tr><tr><td class="align_left">Boresight axial ratio</td><td class="align_center">Below 3 dB</td></tr><tr><td class="align_left">VSWR</td><td class="align_center">Less than 2 : 1</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Performance metrics for (2–18 GHz) spiral antenna.</div>

International Journal of Antennas and Propagation

tab2

Table 2

Table 2: Hybrid Utilization of Loading Techniques and Cavity Groove for Performance Enhancement of the UWB (2–18 GHz) Spiral Antenna 