| VLASOV天线的研究 |
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| 引用本文： | 周海京, 丁武, 刘庆想. VLASOV天线的研究[J]. 强激光与粒子束, 2002, 14(03). |
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| 作者姓名： | 周海京 丁武 刘庆想 |
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| 作者单位： | 1.北京应用物理与计算数学研究所,北京 1 00088;;;2.中国工程物理研究院 应用电子学研究所,四川 绵阳621 900 |
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| 摘 要： | 使用频域矩量法(MM)和时域有限差分方法(FDTD)对VLASOV天线进行了系统研究。通过数值模拟：对VLASOV天线中的模式转换及其辐射过程进行有了清晰的物理描述；对VLASOV天线进行了参数化研究；并为实验提供了加工原型，实测结果与模拟结果吻合良好。在此基础上，结合VLASOV天线在高功率微波系统中的应用提出了一种新的设计方案。该方案实现了天线与天线罩的一体化设计，使辐射波束实现了较好的圆对称性，天线增益提高6dB，第一副瓣电平下降13dB。
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| 关 键 词： | 高功率微波 天线 数值模拟 |
Research on Vlasov-type Antenna |
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| zhou hai-jing, ding wu, liu qing-xiang. Research on Vlasov-type Antenna[J]. High Power Laser and Particle Beams, 2002, 14. |
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| Authors: | zhou hai-jing ding wu liu qing-xiang |
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| Affiliation: | 1. Institute of Applied Physics and Computational Mathematics,P.O.Box 8009-11,Beijing 100088,China;;;2. Institute of Applied Electronics,China Academy of Engineering Physics,P.O.Box 919-1015,Mianyang621900,China |
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| Abstract: | In this paper, Vlasov antenna is studied systematically by the moment method (MM) and finite difference time domain (FDTD). Based on the simulation results, the process of mode conversion in the waveguide and radiation through the aperture is described in more details by clear physical pictures. The measurement results agree well with the numerical results. Furthermore, a new design of Vlasov-type antenna together with a radome, which will be used in a high power microwave system, is proposed. Compared with the traditional designs, the antenna gain has been increased by 6dB, and the first side lobe level has been decreased by 13dB. |
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| Keywords: | high power microwave antenna numerical simulation |
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