北京航空航天大学学报 ›› 2011, Vol. 37 ›› Issue (11): 1471-1474.

• 论文 • 上一篇    

半空间中机载甚低频双拖曳天线电磁辐射特性

吴龙刚, 苏东林, 陈佳佳, 武南开   

  1. 北京航空航天大学 电子信息工程学院, 北京 100191
  • 收稿日期:2011-05-26 出版日期:2011-11-30 发布日期:2011-12-03
  • 作者简介:吴龙刚(1978-),男,黑龙江齐齐哈尔人,博士生,alawuwu@163.com.
  • 基金资助:

    国家自然科学基金资助项目(60831001)

Analysis of electromagnetic radiation for airborne very-low-frequency (VLF) dual trailing antenna in half-space

Wu Longgang, Su Donglin, Chen Jiajia, Wu Nankai   

  1. School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2011-05-26 Online:2011-11-30 Published:2011-12-03

摘要: 对半空间中机载甚低频双拖曳天线电磁辐射特性进行了研究.基于有限元算法建立了机载甚低频双拖曳天线半空间全波仿真模型,利用边界条件模拟了海面半空间环境,深入分析了海面半空间环境对于机载甚低频双拖曳天线辐射特性的影响,通过调整机载甚低频双拖曳天线长短比,优化了机载甚低频双拖曳天线的输入阻抗、辐射效率等设计参数,该研究结果与美国海空军发展中心公布的数据吻合较好,验证了研究结论的有效性和可信性,对机载甚低频双拖曳天线的设计及应用具有参考意义.

Abstract: Electromagnetic radiation characteristics of an airborne very-low-frequency (VLF) dual trailing antenna in the half-space (a space including air and seawater) were studied. The airborne VLF dual trailing antenna models in half-space were established and calculated by finite element method (FEM). The influences of the half-space to antenna radiation patterns were investigated using numerical results. In addition, through shifting feed locations (i.e., changing the ratio of long antenna and short antenna), variation trends of antenna characteristic parameters in half-space, including antenna input impedance and radiation efficiency were obtained. Good agreements of simulation results and the corresponding data announced by american naval and air development center were achieved, which validates the effectiveness and reliability of the proposed method and results. The achievements provide significance to the airborne VLF dual trailing antenna design in the future.

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