Compact Printed Arrays with Embedded Coupling Mitigation for Energy-Efficient Wireless Sensor Networking

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</svg> (mm)</td><td align="center">Center frequency (GHz)</td><td align="center"><svg height="15.3875" id="M101" style="vertical-align:-3.38113pt" version="1.1" viewbox="0 0 35.262501 15.3875" width="35.262501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> (GHz)</td><td align="center"><svg height="15.3875" id="M102" style="vertical-align:-3.38113pt" version="1.1" viewbox="0 0 44.25 15.3875" width="44.25" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><path d="M493 503l-29 -4q-13 56 -28 80q-13 22 -35.5 29.5t-78.5 7.5h-76q-22 0 -27.5 -5t-5.5 -27v-238h103q66 0 82.5 12t25.5 62h29v-193h-29q-9 54 -25.5 67t-82.5 13h-103v-181q0 -64 15 -78.5t84 -19.5v-28h-272v28q61 5 74.5 19.5t13.5 78.5v399q0 64 -13 78t-72 19v28
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<g transform="matrix(.012,-0,0,-.012,35.2,15.187)"><path d="M687 650v-28q-52 -6 -71.5 -23t-47.5 -83q-142 -346 -208 -527h-31q-119 325 -207 545q-21 54 -39.5 68.5t-65.5 19.5v28h245v-28q-52 -5 -61.5 -15.5t3.5 -43.5q55 -157 166 -437h2q120 303 158 421q14 43 3.5 55.5t-71.5 19.5v28h225z" id="x56"></path></g>
</svg> (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">30</td><td align="center">2.632</td><td align="center">0.995</td><td align="center">37.8</td></tr><tr><td align="left">18</td><td align="center">2.537</td><td align="center">0.712</td><td align="center">28.1</td></tr><tr><td align="left">12</td><td align="center">2.452</td><td align="center">0.680</td><td align="center">27.7</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Active input impedance bandwidths of the three measured arrays.

International Journal of Antennas and Propagation

tab2

Table 2

Table 2: Compact Printed Arrays with Embedded Coupling Mitigation for Energy-Efficient Wireless Sensor Networking 