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Reduction of the Radar Cross Section of Conformed Microstrip Antennas Using Metamaterials

The simulation results of microstrip antennas with a layer of metamaterial with reduced radar cross section (RCS) are presented in the paper. The microstrip antenna characteristics were modeled using the FEKO program. The dependences of the radiation pattern and the effective scattering damage to the antenna are analyzed in the range of 6-12 GHz. It is shown that the use of metamaterial is like the placement of a radar absorbing coating. The level reduction RCS of the antenna and the frequency range where this is achieved depends on the configuration of the metamaterial elements.