基于阵面变形误差的有源相控阵天线电性能分析  

On Coupled Structural-Electromagnetic Model of Active Phased Array Antennas with Array Plane Structural Distortion Errors

作　　者：王从思[1] 康明魁[1] 王伟[1] 

机构地区：[1]西安电子科技大学电子装备结构设计教育部重点实验室,陕西西安710071

出　　处：《电子学报》2014年第12期2520-2526,共7页Acta Electronica Sinica

基　　金：国家自然科学基金项目(No.51035006;No.51205301;No.5147539);国家973计划(No.2015CB857102);新世纪优秀人才支持计划(No.NCET-09-0633);高等学校学科创新引智计划(No.B14042);高等学校博士学科点专项科研基金(No.20120203110012);中央高校基本科研业务费专项资金(No.SPSZ011401;No.72103389)

摘　　要：有源相控阵天线(Active Phased Array Antenna,APAA)阵面安装产生随机误差,振动冲击、热功耗等引起阵面变形,二者产生的阵面结构变形误差会导致天线电性能的下降,已成为实现高性能APAA的难点之一.将阵面变形误差作为附加的相位因子引入到天线方向图函数中,建立了平面矩形APAA阵面变形误差与电性能之间的结构-电磁耦合模型,并仿真分析了天线阵元个数变化时,阵面变形误差对天线电性能的影响规律.The electromagnetic performance of active phased array antenna （APAA）is obviously degraded because of plane distortion errors which include random errors generated in antenna plane assembling and structural distortion resulting from vibra-tion,thermal power consumption,etc .It has become one of the difficulties to develop high-performance active phased array anten-nas .By introducing the plane distortion errors into the antenna pattern function as an additional phase factor,the coupled structural-electromagnetic model between the plane distortion errors and the performance of the planar rectangular APAA is established .The influence of the electromagnetic performances of antenna with the plane distortion errors is analyzed with the valueful results .

关 键 词：有源相控阵天线 变形误差 电性能 耦合分析 

分 类 号：TN821.8[电子电信—信息与通信工程]