HEMI：半球形天线

在机构通信领域，尤其是美国航空航天局（NASA）的相关文档和讨论中，人们常将“HEMIspherical antenna”简写为HEMI，以便于快捷书写和高效使用。这一缩写特指“半球形天线”，它凭借独特的半球形结构，在信号收发方面表现出优越性能，广泛应用于空间通信和地面监测系统。

Novel broadband circular-polarized dielectric hemispherical helical antenna
一种宽带圆极化介质半球面螺旋天线
Analysis on Bifilar Hemispherical Helical Antenna Array Based on MOM
基于矩量法的双臂半球面螺旋天线阵列分析
Compared with the traditional spherical and hemispherical helical antenna, this novel antenna has better radiation characteristics, which show that it is of great potential value in the field of satellite communications.
与传统球面螺旋天线、半球面螺旋天线相比，该天线具有更加良好的辐射特性，在卫星通信领域有着巨大的应用前景。
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.
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。
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.
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；

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