强激光与粒子束2012，Vol.24Issue(2)：436-440,5.DOI:10.3788/HPLPB20122402.0436
3mm圆锥喇叭聚焦天线的理论与仿真
Theory and simulation of 3 mm conical horn focusing lens antennas
摘要
Abstract
The design of focusing lens based on traditional ray path method is introduced. The performances of 3 mm focusing lens antennas are simulated by using electromagnetic simulation software. Antennas with different spread angles (12% 20°,30°) of horn are simulated. It's concluded that the actual focal length increases and approaches to the value designed gradually when the spread angle of horn increases, and the ray path method can be applied when the electromagnetic wavelength is short enough compared with the horn aperture. The E-field on the focal planes of the three antennas is presented and the focal spot of the antenna with 30° spread angle is smaller than twice the electromagnetic wavelength.关键词
圆锥喇叭/光路法/聚焦透镜/焦距/焦斑Key words
conical horn/ray path method/focusing lens/focal length/ focal spot分类
信息技术与安全科学引用本文复制引用
唐剑明,赵青,郑灵,刘述章,罗先刚..3mm圆锥喇叭聚焦天线的理论与仿真[J].强激光与粒子束,2012,24(2):436-440,5.基金项目
国际合作项目(OS20122R0151) （OS20122R0151）
国家973项目 （）
四川科技支撑计划基金项目(2010G20157) （2010G20157）
微细加工光学国家重点实验室基金(M160104012011E11) （M160104012011E11）
