双极化测向天线交叉极化机理分析及优化设计  

Analysis and Optimization of Cross Polarization Characteristics for Dual Polarized Direction Finding Antenna

作　　者：徐利明 李鹏 李运涛 卫杰 

机构地区：[1]电子信息控制重点实验室,成都610036 [2]中国石油玉门油田分公司炼油化工总厂,甘肃玉门735200

出　　处：《电子信息对抗技术》2017年第2期64-69,共6页Electronic Information Warfare Technology

摘　　要：双极化天线的极化隔离度是多极化测向系统的关键指标之一,是系统用以正确测向的基础。针对正交双极化天线的极化隔离问题,提出了一种单极子阵列等效模型对不同结构的交叉极化机理进行分析,利用对称平衡化设计思路,提出小口径条件下提升交叉极化性能和极化隔离性能的技术方案,并结合全波仿真方法进行了验证。Dual polarized antenna polarization isolation is one of the key indicators of multi-polarization direction finding system,also is the foundation of correct direction. The orthogonal cross polarization characteristics and mechanism are analyzed,and the solutions for increasing cross polarization performance are put forward under the condition of small diameter for a class of typical direction finding of the dual polarized antenna. Improved measures are suggested for the performance of isolation conditions for the system using orthogonal polarization channel. The proposed methods are validated by the full wave simulation results.

关 键 词：双极化 测向天线 交叉极化 极化隔离 

分 类 号：TN821.1[电子电信—信息与通信工程]