In order to solve the electromagnetic compatibility ( EMC) testing problem in specific scenarios such as aircraft cabin,a novel compact wideband dual-polarized antenna is designed and implemented to meet the requirements of EMC test in a small space. Based on the performance analysis of the traditional Vivaldi antenna,a new wideband single-polarized antenna is designed by improving the shape and optimizing the surface current distribution of the traditional antenna. A high isolation dual-polarized EMC test antenna is designed by combining two single-polarized antennas and adopting an asymmetric dual-polarized design method. The simulated and measured results show that the operating frequency band of the antenna is 0.33-3.40 GHz (VSWR<2),the directional pattern has no split lobe,the gain is flat in the whole frequency band,the antenna factor reaches 17-36 dB/m and the 2-port isolation is above 35 dB. The dimension of the combined antenna is 450×450×450 mm3,which meets the requirements of the system-level EMC radiation emission test and contributes to enhancing the test efficiency.
关键词
飞行器/电磁兼容性测试天线/双极化天线/宽频带天线
Key words
aircraft/EMC test antenna/dual-polarized antenna/wideband antenna
维普
万方数据