低雷达截面的新型超宽带单极子天线

针对超宽带天线的隐身问题，设计了一种新型的超宽带低雷达截面的单极子天线。测试结果显示天线-10 dB带宽范围为2.2~10.4 GHz，天线在2.5 GHz和8 GHz的方向图对称性良好。相比于参考天线，该新型天线的雷达截面（radar cross section, RCS)在带内的大多数频点实现了有效减缩。在最大增益损失不超过1 dB的情况下，实现了两个不同入射方向RCS的最大减缩量分别为6.4 dBsm和17.9 dBsm。该天线可应用于超宽带隐身平台上。

Novel ultra-wideband monopole antenna with low RCS

To solve the problem of ultra-wideband(UWB) antennas in stealth,a novel UWB monopole antenna with low RCS is designed.The measured results show that the range of the-10 dB impedance bandwidth is from 2.2 to 10.4 GHz,and the symmetry of radiation patterns in 2.5 and 8 GHz is well.In comparison with the reference antenna,the RCS of the novel antenna has achieved effective reduction in most of the frequencies.With its largest gain loss about 1 dB in the whole operating frequencies,the largest values in RCS red...