一种抗高过载宽波束天线设计  

Design of an Anti-high Overload Wide Beam Widths Antenna

作　　者：晏阳栋 成红涛[1] 张景鹏[1] Yan Yangdong;Cheng Hongtao;Zhang Jingpeng(Xi'an Institute of Electromechanical Information Technology,710065)

机构地区：[1]西安机电信息技术研究所,西安710065

出　　处：《测控与通信》2023年第3期37-40,共4页

摘　　要：本文提出了将2个倒F型天线单元背靠背放置的1种拓扑结构形式。通过1个一分二等功分相位相差180°的反相馈电网络将2个倒F型单元阵子级联,实现了天线能量的更宽角域的的覆盖。通过采用金属结构件、螺纹安装以及发泡等装配工艺手段增强了该天线的抗过载能量。基于此拓扑结构设计的宽波束天线能够在2.20~2.38GHz实现VSWR<2(相对带宽为7.8%)。在中心频点(F-2.28GHz)处该宽波束天线3dB波束宽度达到了254°(Phi=0°面),在另一正交面的波束宽度也达到了115°(Phi=90°面),且天线在Theta角为256°的范围内其增益均大于0dBi(Phi=0°面),在Phi=±50°的切面内其3dB波束宽度均大于100°。This paper presents a topological structure in which two inverted F-shaped units are placed back to back.Two inverted F-shaped elements are cascaded through an inverted feeding network with a phase difference of 180°,which realizes the coverage of antenna energy in a wider angular domain.The anti-overload energy of the antenna is enhanced by adopting metal structural parts,threaded installation and foaming assembly process.The wide-beam antenna designed based on this topology can achieve VSWR<2 in 2.20~2.38 GHz(relative bandwidth is 7.8%).At the central frequency(f=2.28 GHz),the 3 dB beam width of the wide-beam antenna reaches 254°(phi=0 plane),and the 3 dB beam width at the other orthogonal plane also reaches 115°(phi=90 plane),and the gain of the antenna is greater than 0 dBi(phi=0 plane)in the range of Theta angle of 256°.

关 键 词：宽波束 反相馈电网络 倒F型单元 端射 

分 类 号：TN8[电子电信—信息与通信工程]