Effect of Ground Plane Deformation on Electrical Performance of Air Microstrip Antennas

<div>Input impedance from the optimized circuit parameters compared with the simulation results for the four cases with <svg height="8.8423pt" id="M117" style="vertical-align:-0.2064009pt" version="1.1" viewbox="-0.0498162 -8.6359 30.4596 8.8423" width="30.4596pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M686 28C612 35 607 44 591 112C563 234 541 360 519 489L489 666L457 658L147 121C100 40 89 36 24 28L17 0H240L250 28C168 34 159 41 190 101L262 237H482C495 180 503 137 510 91C517 47 514 35 441 28L433 0H677L686 28ZM475 280H285L429 541H431L475 280Z"></path></g><g transform="matrix(.013,0,0,-0.013,12.767,0)"><path d="M535 323V373H52V323H535ZM535 138V188H52V138H535Z"></path></g><g transform="matrix(.013,0,0,-0.013,24.03,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g></svg> (the flat case), 1 mm, 1.5 mm, and 2 mm.</div>

International Journal of Antennas and Propagation

fig10

Figure 10

Figure 10: Effect of Ground Plane Deformation on Electrical Performance of Air Microstrip Antennas 