A small antenna with aerospace application

1991 IEEE Aerospace Applications Conference Digest Pub Date : 1991-02-03 DOI:10.1109/AERO.1991.154522

C. Grimes, D. M. Grimes

引用次数: 6

Abstract

The reactive power and energy of a spherical radiator are investigated. The radiator may be an actual sphere, or it may be a Gaussian surface fit about a radiator of arbitrary shape supporting Kirchhoff equivalent currents and charges. It is shown that the sphere can be resonant, in the sense of no reactive power, at any ratio of diameter to wavelength. An antenna is described based on the analysis. The design consists of linear elements whose interaction is nonlinear. The antenna is narrowband, sweepable broadband, and has a resonant frequency only indirectly dependent upon its size. The construction is one of properly combined electric and magnetic multipolar sources. For given multipolar dimensions, the resonant frequency is dependent upon the relative magnitudes and phases of the driving currents. The radiation pattern is independent of frequency and the physical size of the antennae.<>

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一种用于航空航天的小型天线

研究了球形辐射器的无功功率和能量。辐射体可以是一个实际的球体，也可以是一个支持基尔霍夫等效电流和电荷的任意形状辐射体的高斯曲面拟合。结果表明，在无功功率的意义上，在任何直径与波长的比下，球都可以谐振。在此基础上，设计了一种天线。该设计由线性元素组成，它们之间的相互作用是非线性的。天线是窄带，可扫频宽带，谐振频率仅间接依赖于其尺寸。该结构是一种合理组合的电、磁多极源。对于给定的多极维，谐振频率取决于驱动电流的相对大小和相位。辐射方向图与频率和天线的物理尺寸无关

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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1991 IEEE Aerospace Applications Conference Digest

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