A summary of recent developments on metamaterial-based and material-inspired efficient electrically small antennas

This paper summarizes our recent research efforts to realize efficient electrically small antenna (EESA) systems based on ideal analytical and numerical metamaterial-based antenna systems, and physically realized metamaterial-inspired antenna designs. Our theoretical and numerical studies ofthe radiation and resonance behaviors ofthe proposed metamaterial-based EESA systems, as well as our efforts to conceptualize structures which might be used to build them, have led to the discovery ofsever al realizable metamaterial-inspired EESA systems. The measurement results confirm the numerical performance predictions.