椭圆环形天线作为一种可展开天线还未见到国内有关该方面的报导。但通过几何学和电性能的研究发现椭圆环形桁架结构相比圆形桁架更具适用性。针对天线结构设计的核心问题———椭圆面多边形逼近的确定，提出了逼近椭圆的多变形为内接等角多边形、外接等角多边形和等边多边形的设计构思，通过证明分析内接等角多边形、外切等角多边形是否一定存在，并证明了内接等边多边形存在的可能性。%Domestic research on elliptical truss antennas ,a deployable form of antenna ,has not yet been reported .But through the study of geometry and electrical properties it's found that the elliptical truss structure is more applicable com-pared with the circular truss structure .The determination of polygon is the core question of antenna structure design .One i-dea has been proposed that those polygons are inscribed equiangular polygons ,external equiangular polygons and inscribed e-quilateral polygons .It is also analyzed whether there are inscribed equiangular polygons and external equiangular polygons . The possibility of inscribed equilateral polygons is also verified .
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