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半球面螺旋天线宽带特性研究
引用本文:夏冬玉,张厚,张前悦,任卫华.半球面螺旋天线宽带特性研究[J].航天电子对抗,2007,23(1):40-41,61.
作者姓名:夏冬玉  张厚  张前悦  任卫华
作者单位:空军工程大学导弹学院,陕西,三原,713800
摘    要:采用螺旋基函数和检验函数的矩量法分析了单臂半球面螺旋天线和双臂半球面螺旋天线的驻波、增益及方向图等特性.结果表明,单臂半球面螺旋天线阻抗带宽窄,频带内增益起伏较大,天线的方向图带宽较窄;双臂半球面螺旋天线具有较宽的阻抗带宽和方向图带宽,工作频带内增益变化不大,该天线在军事卫星通信领域具有广阔的应用前景.

关 键 词:球面螺旋天线  矩量法  螺旋基函数  球面螺旋天线  宽带特性  研究  helical  characteristics  前景  应用  通信领域  军事卫星  增益变化  工作频带  阻抗带宽  增益起伏  结果  方向图  驻波  单臂  矩量法分析  检验函数  基函数
修稿时间:2006年7月26日

Wideband characteristics of hemispherical helical antennas
Xia Dongyu,Zhang Hou,Zhang Qianyue,Ren Weihua.Wideband characteristics of hemispherical helical antennas[J].Aerospace Electronic Warfare,2007,23(1):40-41,61.
Authors:Xia Dongyu  Zhang Hou  Zhang Qianyue  Ren Weihua
Abstract:The wideband characteristics of two hemispherical helical antennas are analyzed by the method of moment with curved basic and testing function.The analysis results indicate that the impedance and pattern bandwidths of the one-arm hemispherical helical antenna are relatively narrow,and its gain varies acutely in the whole band.The two-arm hemispherical helical antenna has very wide impedance and pattern bandwidth,and its gain in the whole band is larger and wave mildly,which show that it is of great application value in the field of martial satellite communications.
Keywords:spherical helical antenna  MOM  curved basic function
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