Modal Resonant Frequencies and Radiation Quality Factors of Microstrip Antennas

<table>Degenerated dominant mode <svg height="15.7" id="M137" style="vertical-align:-3.276pt" version="1.1" viewbox="0 0 14.9625 15.7" width="14.9625" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>, and  <svg height="15.7" id="M138" style="vertical-align:-3.276pt" version="1.1" viewbox="0 0 14.9625 15.7" width="14.9625" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,0,0,-.017,.062,11.55)"><path d="M127 676h351v-25q-56 -5 -72 -22t-16 -73v-430q0 -222 -212 -222q-73 0 -108 23q-30 21 -48.5 51t-18.5 59q0 28 21.5 51t49.5 23t50 -23t22 -53q0 -14 -14 -34q-13 -19 -13 -32q0 -32 45 -32q34 0 49 21.5t15 68.5v550q0 43 -20 57q-20 16 -81 17v25z" id="x1D409"></path></g>
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</svg> of the FCL2 antenna (currents and charges).</table>

International Journal of Antennas and Propagation

fig13

Figure 13

Figure 13: Modal Resonant Frequencies and Radiation Quality Factors of Microstrip Antennas 