Figure 4
From: Microwave demonstration of Purcell effect enhanced radiation efficiency
Polar plots of the normalised far-field radiation patterns in the x-y plane for the system at the identified (a) fundamental and (b) higher order mode, comparing computational and experimental data. The axis of the quarter-wavelength rod emitter is aligned with the 0° direction, and the ground plane is aligned along the 90°-to-270° direction.
