Small H-shaped Shorted Patch Antennas

Abstract

Four H-shaped shorted patch antennas with reduced dimensions are developed by using several techniques for size reduction of patch antennas. Step-by-step approach shows the obtainable reduction in size. All antennas are designed for operation at 2 GHz. Calculation results for all antennas are compared with measurement results on antenna prototypes. Antenna input impedances, radiation patterns and gains are measured. Good agreement between calculated and measured values is obtained. Both calculated and measured results are used to compare the advantages and disadvantages of the applied miniaturization techniques.