【作者】 李名玮； 苏涛；

【Author】 Ming Wei Li;Tao Su;Xidian University;

【机构】 西安电子科技大学；

【摘要】 本文提出一种4单元的左旋圆极化微带缝隙耦合天线设计方案,适用于1.98-2.2GHz的卫星通信频段。文中提出一种提升卫星通信频段圆极化天线设计方法。仿真结果表明,该圆极化天线可实现在1.9-2.25GHz内,驻波比小于1.5,圆极化轴比小于3d B。相比于原天线,其最大增益提升了0.55d Bi。并可根据工程需要,继续提升增益。这种天线具有电性能优良、结构简单可靠、制造成本低等特点,非常适用于卫星通信系统。更多还原

【Abstract】 A 4-cell left-hand microstrip slot circular polarized coupling antenna is presented, which applied to 1.98-2.2GHz frequency bands currently known of satellite mobile communication system. In this paper, a high gain antenna design way for the satellite mobile bands is proposed. According to the simulation results, the antenna is found to have an excellent performance within a wideband range from 1.9-2.25 GHz. The VSWR is less than 1.5, circular polarized axial ratio is less than 3d B.Compared to the original antenna, its biggest gain increased 0.55 d Bi. The biggest gain could also be extended according to the engineering needs. The antenna has an excellent electrical performance, simple and reliable structure, low manufacturing cost characteristics, which also could be applied for satellite mobile communication system.更多还原