Application of AMC on mini ultra-near radar detecting system

To solving the isolation problem of transmitting-receiving antenna in very-near anti-missile system, this letter analyses the equivalent model of AMC, which is made of high-impedance electromagnetic surface, and shows the relationship between its reflectance and phase offset. Then a novel method is brought to improve the isolation by the AMC and the experiments show that this method is able to make the isolation reach -80 dB in a 200 M band. So it has a very huge application value because of its simple structure and low cost.