Highly efficient direct contact stacked patches on high dielectric constant wafers

We present a highly efficient stacked patch antenna in which the driven patch is developed on a high dielectric constant material. Importantly, a technique is introduced that enables broad bandwidth performance (greater than 20%) and good efficiency (in excess of 90%) despite the incorporation of a truncated wafer. This new radiator can be used to realize highly efficient, broadband antenna/electro-optic interfaces for emerging communications and sensing applications.