Abstract
Now-a-days metamaterials or Double Negative Gain (DNG)Structure have been widely used due to its potential applications. They are usually arranged in periodic patterns and gain properties not from their composition, but from their exactingly-designed structures. In this paper we report the detailed design and theoretical demonstration of the Split Ring Resonator (SRR),Metellic strip wires (SW) to develop metamaterials which has been loaded on pyramidal horn antenna for X-band application . The obtained result from the HFSS simulation concerning the constitutive parameters of the SRR, shows that there is a DNG permeability and permittivity in the frequency of interest. The horn antenna is loaded with fabricated DNG structure and various parameters have been measured at operating frequency of 8.5 GHz and 10 GHz. It was found that the results are improved at 8.5 GHz as compared to that of unloaded condition, while at 10 GHz DNG structure worked as
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