Hexagonal Monopole Strip Antenna with Rectangular Slot for 100–1000 MHz SFCW GPR Applications

<table>HMS antenna with resistive loading. <svg height="11.6625" id="M3" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 48.325001 11.6625" width="48.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> mm, <svg height="11.375" id="M4" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 38.200001 11.375" width="38.200001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> mm, and <svg height="11.75" id="M5" style="vertical-align:-0.23206pt" version="1.1" viewbox="0 0 44.025002 11.75" width="44.025002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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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(.017,-0,0,-.017,12.931,11.4)"><path d="M535 323h-483v50h483v-50zM535 138h-483v50h483v-50z" id="x3D"></path></g><g transform="matrix(.017,-0,0,-.017,27.634,11.4)"><path d="M412 140l28 -9q0 -2 -35 -131h-373v23q112 112 161 170q59 70 92 127t33 115q0 63 -31 98t-86 35q-75 0 -137 -93l-22 20l57 81q55 59 135 59q69 0 118.5 -46.5t49.5 -122.5q0 -62 -29.5 -114t-102.5 -130l-141 -149h186q42 0 58.5 10.5t38.5 56.5z" id="x32"></path></g><g transform="matrix(.017,-0,0,-.017,35.794,11.4)"><path d="M249 635q70 0 116 -43t46 -105q0 -46 -28 -80q-22 -25 -80 -64q62 -35 97 -75t35 -99q0 -81 -63 -131t-135 -50q-83 0 -137.5 45.5t-54.5 123.5q0 52 45 95q29 28 89 64q-109 62 -109 155q0 66 50.5 115t128.5 49zM238 603q-42 0 -67.5 -31t-25.5 -72q0 -50 32.5 -79.5
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</svg> mm.</table>

International Journal of Antennas and Propagation

fig1

Figure 1

Figure 1: Hexagonal Monopole Strip Antenna with Rectangular Slot for 100–1000 MHz SFCW GPR Applications 