摘要
综合运用了口径耦合的馈电方式、不同介电常数基片及双层贴片结构展宽了微带天线的频带,设计出一种用于Ku波段双极化宽带微带天线单元。并由该单元组成了四单元微带天线阵,制作了实验模型。测量的结果表明,两端口VSWR<1.5的相对阻抗带宽分别为21%和20.7%,隔离度大于17dB,与仿真结果一致。
Aperture-coupled feeding, different dielectric constant＇s substrate and the stacked patch structure are used to enhance the bandwidth of microstrip antenna, a broadband and dual-polarized microstrip antenna unit at Ku band is designed. By using the unit designed, a 4-element array antenna is fabricated and tested. The measured results by network analyzer show that the relative impedance bandwidth of two ports （VSWR is less than 1.5） is 21% and 20.7% , respectively, and isolation degree is higher than 17 dB, which are good agreement with the simulation results.
出处
《电波科学学报》
EI
CSCD
北大核心
2008年第2期276-279,共4页
Chinese Journal of Radio Science
基金
广西研究生教育创新基金资助项目(2007105950809M10)
关键词
KU波段
宽带
双极化天线
Ku band
broadband
double-polarized antenna
