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高功率微波的峰值功率比常规雷达信号高三到四个数量级,在高功率微波照射下天线自身可产生热效应。以抛物面天线和基片集成波导缝隙天线两种典型材质的天线为例,仿真分析了高功率微波照射下天线的热效应,得出了不同辐照功率下两种天线表面温度的变化规律,并分析了热效应对天线性能的影响,为天线的高功率微波防护提供参考。
The peak power of high-power microwaves is three to four orders of magnitude higher than conventional radar signals, and the antenna itself can generate thermal effects under high-power microwave irradiation. Taking the parabolic antenna and the antenna with two kinds of typical materials as waveguide integrated slot antenna as an example, the thermal effect of the antenna under high power microwave irradiation was simulated and the variation law of the surface temperature of the two antennas under different irradiation power was obtained. The effect of thermal effect on the performance of the antenna provides a reference for the high-power microwave protection of the antenna.