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本文研究一种应用于卫星通信系统车载移动站的走向圆极化天线——双臂微带螺旋天线，文中应用二次曲线段三角基函数展开的矩量法对天线的各项电性能指标作了数值计算，为天线的设计和调整提供了充分的理论依据和切实可行的思路和方法。
In this paper, we study a dual-arm microstrip helical antenna with a circularly polarized antenna, which is applied to the vehicular mobile station of satellite communication system. The paper uses the moment method developed by trigonometric function of quadric curve to measure the electrical performance of the antenna The numerical calculation provides a sufficient theoretical basis and practical ideas and methods for the design and adjustment of the antenna.