Abstract: This paper proposes a new method for measuring reflection coefficient of radar absorbing material (RAM). This method combines the sixport reflectometer with the Hplane measuring probe, and performs calibration and data processing with Matlab. The experimental results indicate that the method is practical with precision meeting engineering requirements. The proposed method is efficient. Compared to traditional approaches, it improves measuring precision and saves time.

Key words: calibration, radar absorbing material (RAM), reflection coefficient, six-port reflectometer