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Electromagnetic performance analysis of omega‐type metamaterial radomes

Radomes usually used for protection of antennas from environment should have minimum degrading effects on antenna performances. Recently, metamaterials are used in radome designs to improve their characteristics. In this work, various combinations of omega type metamaterial are investigated in planar radome designs. The simulations show that some of these structures have good performances in the designed frequency range 13–17 GHz up to incident angle 70°. Moreover, retrieval method is used to determine the effective parameters of the structure. The radome is also investigated in the presence of a microstrip antenna. © 2011 Wiley Periodicals, Inc. Int J RF and Microwave CAE , 2011.