摘要
在准光近似理论基础上,以输入模式TE03、频率94GHz的VLASOV模式变换器为研究对象,分析了建模过程,得到了VLASOV模式变换器数模型参数;通过数值模拟,对VLASOV模式变换器中的模式转换及辐射过程进行了物理描述,数值模拟结果表明:辐射波束具有明显的方向性,波束明显变窄锐化,主瓣增益高达到29.46dB,能量主要集中在主瓣上,旁瓣增益较低,辐射效率为87.36%。
On the basis of the quasi-optical theory,VLASOV mode converter with input mode TE03 and frequency 94 GHz was investigated,and modeling precess was analyzed.Model parameters of VLASOV mode converter were obtained.By using numerical simulation,mode conversion and radiation physical precess are described distinctly.The result shows that radiation wave beam has obvious directional characteristics and comes to narrower and sharper evidently.Main lobe gain is up to 29.46 dB.Output power is centred in main lobe,and side lobe gain becomes lower.Radiation power efficiency is 87.36%.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2010年第5期40-43,共4页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(60971034)
