Ku频段变极化两维相控阵天线设计  

Design of Ku-band Variable Polarization/2-D Phased Array Antenna

作　　者：王海花[1] 杨则南 沈泉[1] 

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《空间电子技术》2017年第6期71-74,共4页Space Electronic Technology

摘　　要：设计了一种高效率可变极化低剖面的相控阵天线,阵元采用双圆极化平面偶极子天线实现辐射,并通过控制各单元左旋与右旋端口相位,实现任意方向线极化辐射。经仿真验证,工作频率在11.5~14.5 GHz频段范围内,阵面为16×16阵元在零指向增益大于29 d B,扫描±45°范围内扫描无盲点,并保持良好的圆极化特性以合成准确的任意方向线极化。该天线具有剖面低、成本低、质量轻等优点,可广泛应用于动中通系统中。A low profile phased array antenna with high efficiency and variable polarization performthis paper. The element uses a planar dipole antenna with dual circular polarization to achieve radiation, and by controllingthe phase of the left and right ports of each unit,the polarization radiation in any direction is achieved. The simulation results showthat the frequency in the 11.5 -14. 5 GHz frequency range, the 16 × 16 elements array gains greater than 29 dB at zero point ,scanning without blind point in the range of ± 45 degrees and maintaining good ciany direction of accurate linear polarization synthesis. The antenna has the advantages of low profile, loso it can be widely used in satellite communication in motion.

关 键 词：动中通 可变极化 相控阵天线 

分 类 号：V474[航空宇航科学与技术—飞行器设计]