介绍一种小型化宽频带微带阵列天线设计，采用矩形渐变切角结构和E 型开槽结构，实现微带天线 的宽带化和小型化。馈电网络采用多级并联式T 型功分网络，保证宽频带馈电形式。基于项目需求设计、加 工了一套4×6 单元的微带阵列天线，测试结果表明，该天线在10% 的频带内反射系数优于-10dB，增益大于 20dBi。

A novel compact and broadband microstrip array antenna is presented. Rectangle gradient corner structure and E-shaped slot structure are used to attain broadband and miniaturization. Feeding network with parallel T-shaped power divider is used to attain broadband feeding. A demo array of 4×6 elements is designed, manufactured and tested. The measured bandwidth of S11 ＜ -10 dB is 10%, and the gain is over 20 dBi.

TN820