一种新型宽频带双极化馈源的设计  

Design of a Novel Feed with Wideband and Dual Polarization

作　　者：刘超[1] 任冀南[1] 耿京朝[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2010年第6期38-40,共3页Radio Communications Technology

摘　　要：高效率的宽频带馈源可以大大减少馈源数量,减小天线口径,在天线工程中应用很广。采用正方形振子形式设计的新型宽频带双极化馈源,与传统馈源相比,该馈源具有频带宽、体积小以及波束等化好等优点。首先给出了这种馈源的几何结构和腔体理论分析,并对这种馈源反射腔的几种不同结构形式进行了对比分析,分析结果表明采用圆形反射腔形式是最佳选择。对比仿真分析和理论计算结果,两者非常吻合,验证了理论分析的正确性。The wide-band feed with high efficiency can decrease the number of feeds and the antenna aperture,so it has very wide applications in antenna projects.A novel feed with wide-band and dual polarization is presented,which has many advantages compared with the conventional feed,such as simple structure,wideband,small size,and good patterns of E-,H-planes and so on.The geometric structure and the cavity theoretical analysis are given.The results indicate that the circular reflection cavity is the optimal choice.Different structures of the reflection cavity are analyzed.Simulation and theoretical analysis are done and the results are identical,which validates the theoretical method.

关 键 词：高效率 宽频带 双极化 馈源 

分 类 号：TN82[电子电信—信息与通信工程]