Beam-Scanning Reflectarray Based on a Single Varactor-Tuned Element

<table>Synthesized aperture-coupled patch: (a) element layout; (b) simulated input impedance for <svg height="15.4" id="M16" style="vertical-align:-3.39066pt" version="1.1" viewbox="0 0 42.5 15.4" width="42.5" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> mm; (c) simulated input impedance for <svg height="15.4" id="M17" style="vertical-align:-3.39066pt" version="1.1" viewbox="0 0 54.537498 15.4" width="54.537498" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.012,0,0,-.012,9.763,15.188)"><path d="M352 391q0 -31 -27 -44q-14 -7 -24 6q-39 48 -84 48q-23 0 -39.5 -15t-16.5 -40q0 -43 73 -90q49 -32 70 -58t21 -57q0 -58 -62 -105.5t-129 -47.5q-40 0 -75.5 25t-35.5 52q0 28 32 46q7 4 15 3t11 -6q19 -31 48.5 -50.5t54.5 -19.5q34 0 54 19.5t20 42.5q0 43 -65 81
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t98.5 -62.5q61 48 61 124q0 59 -29.5 90t-69.5 31zM248 20q46 0 76.5 33.5t30.5 89.5q0 50 -39 85.5t-110 71.5q-81 -54 -81 -137q0 -67 35.5 -105t87.5 -38z" id="x38"></path></g>
</svg> mm.</table>

International Journal of Antennas and Propagation

Beam-Scanning Reflectarray Based on a Single Varactor-Tuned Element

Figure 2