大型非周期相控阵天线协同设计

针对大型非周期相控阵天线的特点,提出一种多学科、多领域协同设计的方法。然后运用该方法指导两个产品天线设计,围绕协同设计的典型流程和几个关键控制点展开论述。在测试阶段实测天线的主要指标,天线1辐射端面平面度≤1.4 mm,栅瓣电平≤-20 dB,天线2辐射端面平面度≤1.1 mm,栅瓣电平≤-18 dB,实测数据与仿真结果吻合,各项指标优于设计输入要求,使用性能良好,验证协同设计方法的有效性。最后指明大型非周期相控阵天线协同设计的进一步研究方向。

Review of elementary constants in international system of units

A multi-disciplinary and multi-domain collaborative design method of large-scale aperiodic phased array antenna is expounded, according to its characteristics. Then, the collaborative design about two antennas is carried out, focused on the typical process of collaborative design and several key control points. In the testing stage, the main indexes of the antenna are measured, the flatness of the radiating end face of antenna 1 is ≤1.4 mm, the grating lobe level is ≤-20 dB, the flatness of the radiating end face of antenna 2 is ≤1.1 mm, and the grating lobe level is ≤-18 dB. The measured data are in good agreement with the simulation results, and all the indexes are better than the design input requirements, which proves the effectiveness of the collaborative design method. Finally, the research direction in the future about large aperiodic array antenna is designated.