X波段的圆极化微带共形阵天线的仿真与设计

Circularly polarized X-band microstrip conformal array antenna simulation and design

摘要:

为了满足X频段机载雷达天线的指标要求,使得矩形平面天线与柱面共形,通过并联侧馈方式进行馈电。在微带共形阵天线的相关理论基础上,阵元采用介电常数2.2,厚度为0.5mm的介质基板。通过HFSS12对微带共形阵天线进行仿真设计并优化。实验结果表明,在X波段内实现了方位面的全向扫描,实测阻抗带宽为9.80-10.20GHz,最大增益可达10dB,全向辐射性能稳定,满足了指标要求。

Abstract:

In order to meet the X-band radar antenna airborne target, so that rectangular plane and cylindrical conformal antenna, conducted in parallel side-fed feeding mode. In the basis of relevant theories conformal microstrip antenna array on the array element using a dielectric constant 2.2, dielectric substrate thickness of 0.5mm. By HFSS12 microstrip conformal array antenna simulation and design optimization. The results show that in the X-band to achieve the azimuth plane of omni-directional scanning, the measured impedance bandwidth 9.80-10.20GHz, maximum gain of up to 10dB, omnidirectional performance and stability, the indicators meet the requirements.