一种用于Ka波段的低副瓣宽扫描角抛物环面天线设计  

Design of a Parabolic Toroidal Antenna with Low Sidelobe and Wide Scan Angle for Ka-Band

作　　者：梁瑞香 崔镇[1] 王浩[1] 施锦文[1] Liang Ruixiang;Cui Zhen;Wang Hao;Shi Jinwen(China Academy of Space Technology(Xi'an),Xi'an 710100)

机构地区：[1]中国空间技术研究院西安分院,西安710100

出　　处：《测控与通信》2024年第4期28-32,共5页

摘　　要：本文提出了1种用于Ka波段的低副瓣宽扫描角抛物环面天线。论文将抛物环面与密集馈源阵结合,天线反射面由相互正交的抛物线与圆环线构成,以实现高效率的宽波束扫描。利用电磁仿真软件TICRA Tools19对天线进行仿真分析并给出天线仿真结果。由仿真结果可以看出,天线波束的旁瓣电平小于-30dB,在扫描角±30°范围内扫描损失小于0.1dB。据此,本文提出的天线可满足遥感、电子侦察、通信等领域对宽幅、广覆盖区的应用需求。This paper proposes a low sidelobe wide scan angle parabolic toroid antenna for Ka-band.The antenna combines a parabolic torus with a dense feed array.The antenna reflector is composed of mutually orthogonal parabola and circular loop lines to achieve high-efficiency wide beam scanning.The electromagnetic simulation software TICRA Tools19 is used to simulate and analyze the antenna and give the simulation results.It can be seen from the simulation results that the side lobe level of the antenna beam is less than-30dB,and the scanning loss is less than 0.1dB within the range of the scanning angle±30°.According to this,the antenna proposed in this paper can meet the application requirements of wide-area and wide-coverage areas in the fields of remote sensing,electronic reconnaissance,and communications.

关 键 词：低副瓣 宽扫描角 抛物环面天线 扫描损失 

分 类 号：TN8[电子电信—信息与通信工程]