Bulu, I.Caglayan, H.Aydin, K.Özbay, Ekmel2016-02-082016-02-0820051367-2630http://hdl.handle.net/11693/23971In this work, we studied the far-field properties of the microwave radiation from sources embedded inside the split-ring resonator (SRR) metamaterial medium. Our results showed that the emitted power near the resonance frequency of the SRR structure was confined to a narrow angular region in the far field. The measured radiation patterns showed half-power beamwidths around 14°. The highly directive radiation is obtained with a smaller radiation surface area when compared to the previous results obtained by using photonic crystals. The reduction in the surface area is ten-fold in the case of the SRR metamaterial medium when compared to the photonic crystals. Our results provide means to create compact size highly directive antennas.EnglishFar-field propertiesMetamaterial mediumPhotonic crystalsSplit-ring resonator (SRR)CrystalsMicrowavesNatural frequenciesPhotonsRadiationResonatorsDirective antennasArticle10.1088/1367-2630/7/1/223