International Journal of Antennas and Propagation / 2014 / Article / Fig 16

Research Article

Radiation-Enhancement Properties of an X-Band Woodpile EBG and Its Application to a Planar Antenna

Figure 16

Return loss of the woodpile-covered patch antenna, versus frequency. Four different distances ( ) between patch and woodpile are considered. The woodpile rods nearest to the ground plane are parallel to the electric field radiated by the patch.