On the Design and Development of Planar Monopole Antenna for Bone Crack/Void Detection

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Crack length (mm)</td><td class="align_center">Peak resonance (GHz) (fn, where n = 1, 2, 3, 4)</td><td class="align_center">Frequency difference (GHz) (df = fn – fc)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">No crack</td><td class="align_center">2.122 = fc</td><td class="align_center">—</td></tr><tr><td class="align_left">10</td><td class="align_center">2.18</td><td class="align_center">0.058</td></tr><tr><td class="align_left">20</td><td class="align_center">2.21</td><td class="align_center">0.088</td></tr><tr><td class="align_left">30</td><td class="align_center">2.238</td><td class="align_center">0.166</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Details of the frequency difference/shift.</div>

International Journal of Antennas and Propagation

tab3

Table 3

Table 3: On the Design and Development of Planar Monopole Antenna for Bone Crack/Void Detection 