EfficiencyConsiderations in the Design of Aperture-Coupled Patch Antennas with Stripline Feed

Low-cost aperture-coupled stripline fed patch antennas for applications in mobile communication systems are presented. For obtaining the design-data a spectral domain analysis was employed. A possible design procedure for optimum radiation efficiency and bandwidth is outlined, where special attention is paid to reduce the excitation of parallel plate modes without expensive mode suppression techniques.