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Volume 26 Issue 5
May  2000
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Journal of Beijing University of Aeronautics and Astronautics  > 2000  >  26(5): 505-508.
GAO Wen-jun, Lü Shan-wei. Numerical Analysis of Circular Aperture Antennas on Finite Planes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(5): 505-508. (in Chinese)
Citation: GAO Wen-jun, Lü Shan-wei. Numerical Analysis of Circular Aperture Antennas on Finite Planes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(5): 505-508. (in Chinese)
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Numerical Analysis of Circular Aperture Antennas on Finite Planes

  • Beijing University of Aeronautics and Astronautics,Dept. Of Electronic Engineering

  • Received Date: 21 Apr 1999
  • Publish Date: 31 May 2000
    Abstract
  • The circular aperture antenna which is an open-ended circular waveguide stimulated by TE11 mode is analyzed. The method of moments is employed in conjunction with the equivalent-source technique and the modal expansion theory to analyze the open-ended circular waveguide. No restriction is imposed on the number of modes in the analysis. The problem of radiation from a circular aperture antenna embedded in an infinite ground plane is solved at first. Then expressions which represent the elevation-plane patterns of the antenna embedded in a finite ground plane are derived using GTD(Geometrical Theory of Diffraction). The expressions for the field pattern are obtained by superposing the infinite ground plane solutions, the first-order diffracted field solutions and the axial caustic solutions in their respective regions of validity.

     

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    • References(1)
  • [1]Cockrell C R, Pathak Prabhakar H.Diffraction theory techniques applied to aperture antennas on finite circular and square ground planes[J]. IEEE Trans on AP, 1974, 22(3):443~448. [2]柯林R　E(美)著.天线与无线电波传播[M].王百锁译.大连:大连海运学院出版社,1988. [3]Papathomas C　J, Collin R　E.Multi-mode analysis of a two coaxial cup prime focus feed with an infinite flange[J]. Electromagnetics, 1989(9):281~311. [4]高文军.赋形波束环形面天线的研究 . 北京:北京航空航天大学电子工程系,1998. [5]汪茂光.几何绕射理论[M]. 西安:西安电子科技大学出版社,1985.
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