Electromagnetic Heating Effect of Radome Under High Power Microwave Radiation

This paper mainly studies the changes in physical properties and the impact on transmission characteristics of an antenna radome with a high-temperature ceramic substrate Pyroceram 9606 under high-power microwave radiation. We conducted an electromagnetic, thermal bidirectional coupling simulation to obtain the optimal performance of the radome based on the relationship between antenna size, input power, and coverage distance with environmental temperature changes. Then, the electrical performance of the panel radome under steady-state temperature is studied. In a high-power environment, the antenna's beamwidth, aiming error, and insertion loss increased by about 0.2 degrees, 0.5 degrees, and 0.5dB compared to a normal temperature environment. The simulated anti high power electrical design provides applicable reference models and rules for the anti-electrical design of radomes.