摘要
特定的地面卫星通信系统中,要求实现具有全向辐射特性的锥状波束天线,这可以通过灵活的反射面赋形来实现。本文对毫米波双反射面天线进行赋形研究,使得在任意指定方向上的天线口径上获得均匀相位分布,实现指定方向上的锥状波束。利用微带圆贴片天线作为馈源,设计出工作于35GHz、锥角为30°的赋形双反射面锥状波束天线,天线增益为14.4dB,副瓣为-16.3dB。方位面内的方向图具有很好的圆对称性。
Conical beam antennas with omnidirectional radiation characteristics are required in some ground satellite communication applications,which can achieved by using flexible shaped reflector antennas.A millimeter wave shaped dual-reflector antenna is proposed in this paper.The conical beam antenna can receive a uniform phase distribution on the aperture of the specified direction by shaping the reflectors.Then two shaped dual-reflector conical beam antennas working at 35 GHz are designed with a 30°conical angle.Simulated results show the antenna has a gain of 14.4 dB and a side lobe of-16.3 dB.
出处
《微波学报》
CSCD
北大核心
2015年第S2期76-79,共4页
Journal of Microwaves
基金
国家自然科学基金(61301018)
关键词
毫米波
锥状波束
赋形
双反射面
millimeter wave
conical beam
shaped antenna
dual-reflector
