一种双极化收发分离的波束波导馈电网络  

A Dual-Polarized Beam Waveguide Feeding Network with Transmitting and Receiving Separation

作　　者：陈谦[1] 梁冰苑[2] 方正新[1] 金谋平[1] 李佩[1,3] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088 [2]北京航空航天大学电子信息工程学院,北京100191 [3]孔径阵列与空间探测安徽省重点实验室,安徽合肥230088

出　　处：《雷达科学与技术》2016年第5期549-553,557,共6页Radar Science and Technology

基　　金：中国电子科技集团公司资助项目(No.201362401020401)

摘　　要：传统波束波导馈电网络只具备单极化单向传输功能,难以满足应用发展需求。通过引入法拉第旋转器,结合平面镜、曲面镜、极化栅,设计了一个可实现收发分离的双极化共反射面波束波导馈电网络,该馈电网络分水平极化发射/接收、垂直极化发射/接收四个通道。仿真验证了该波束波导馈电网络的工作原理,给出了94.05GHz时馈电网络远、近场分布,实验测试了馈电网络各通道插入损耗,结果表明该馈电网络具有波束一致性好、通道损耗低的特点,可用于空间波束传输。The traditional beam waveguide feeding networks just have single polarization and unidirec- tional transmission function, which is difficult to satisfy the requirements of application developments. A du- al-reflector-shared beam waveguide feeding network with transmitting and receiving separation is designed by introducing Faraday rotators, plane mirrors, curved mirrors and polarization girds. Four working channels of horizontal polarization transmitting/receiving and vertical polarization transmitting/receiving are built for this feeding network. The working principle of this feeding network is verified by simulation. Farther, the distri- bution of near field and far field at 94.05 GHz is illuminated. Insertion loss of the four channels of the feeding networks is measured by experiments. Results show that the beam waveguide feeding network has a good consistency of beam shape and very low insertion loss. It can be used for space beam transmission.

关 键 词：波束波导 馈电网络 收发分离 双极化 

分 类 号：TN81[电子电信—信息与通信工程] TN82