Wide band high selective compact metamaterial antenna for 2 GHz wireless applications

This paper presents a new compact, wide band and high selective, metamaterial antenna for 2 GHz wireless applications. The proposed antenna is designed using metamaterial half wave length stepped impedance resonator. The antenna is centred at 2.1 GHz with 21% fractional bandwidth and wide/high selective harmonics rejection in the frequencies up to 4 GHz. The antenna´s radiator length is 18 mm which introduces 50% length reduction compared to narrow band microstrip patch antenna. The design procedures of the proposed antenna are discussed. The antenna´s performance is examined in terms of full wave simulation and experimental measurements.