Abstract
In this paper, the design and analysis of a hexagonal left-handed material is presented, which is based on the analysis of the structural parameters. The effective permittivity and the effective permeability of the designed hexagonal left-handed material are simultaneously negative in the range from 7.4GHz to 7.9GHz. According to the empirical formula of the microstrip antenna, a conventional microstrip antenna is designed. The different combinations of the hexagonal left-handed materials and the conventional microstrip antenna are analyzed in HFSS software. The novel antenna is proposed based on the analysis of the combinations. The simulation results show that the gain of the antenna increased by 0.51dB, and the half power beam width decreased by 3°. Besides, the bandwidth of the novel antenna is 140MHz wider than that of the conventional microstrip antenna. It is concluded that the performance of microstrip antenna can be improved by using left-handed materials.
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