【摘要】 针对传统天线受到高功率微波的输出功率和脉宽限制的问题,对W波段准光模式变换器进行优化仿真。基于准光近似理论,建立了输入模式为TE03模、频率为94 GHz的阶梯型VLASOV准光模式变换器模型,并进行了仿真优化设计,得到了优化后的VLASOV准光模式变换器数模型参数。仿真结果表明:辐射波束具有明显的方向性,波束明显变窄锐化,主瓣增益很高,达到29.46 dBi,能量主要集中在主瓣上,旁瓣增益较低,辐射效率达到87.36%。更多还原

【Abstract】 In view of impulsion duration shortens when classical antennas transmits high power microwave,quasi-optical mode converter is optimized and simulated.On the basis of the quasi-optical theory,VLASOV mode converter which has input mode TE03 and frequency 94GHz is subject investigated.Model parameters of mode converter are obtained using optimization design.The result shows that radiation wave beam is directional and sharpens obviously.Main lobe gain is up to 29.46dBi,output power centered in main lobe,side lobe gain become lower,radiation power efficiency is 87.36%.更多还原