摘要
本文针对全向圆极化辐射的波导缝隙天线进行研究,提出在利用平板波导作圆极化器的基础上加装波纹地面,起到矫正天线辐射方向、降低副瓣电平和交叉极化的作用。利用HFSS仿真软件,设计一种工作频率为10GHz、波束宽度80°的全向圆极化辐射的波导缝隙天线,天线增益为3dB,最大辐射增益的波动范围在±0.5dB,3dB轴比带宽15%。
In this paper, a novel omnidirectional circular polarized(CP) slot antenna is proposed. A parallel plate waveguide with corrugated structure has been used to adjust the beam direction, obtain low side lobe level and low cross-polarization. Simulation results from HFSS simulation software show that a gain of 3dB at 10 GHz, a beamwidth of 80° in elevation pattern and a 3dB axial ratio bandwidth of 15% are achieved. The ripple in azimuth pattern is about ± 0.5dB.
出处
《微波学报》
CSCD
北大核心
2017年第S1期50-53,共4页
Journal of Microwaves
关键词
全向
圆极化
缝隙天线
波纹结构
omnidirectional
circular polarization
slot antenna
corrugated construction
