平面螺旋天线的设计与实现

Design and implementment of a planar spiral antenna

平面阿基米德螺旋天线具有极宽的工作频带,然而其匹配平衡电路的宽频带实现则较难,尤其是在加反射腔以使其单向辐射时。在4～6GHz范围内仿真并实际制作出了用于某S波段雷达系统单向辐射的平面螺旋天线,给出了设计参数值、仿真结果及实测结果。

Planar Archimedean antenna can work in a very wide band, while the wideband matching network is difficult to be implemented, especially in adding a reflecting cavity to get a unidirectional radiation. In this article a unidirectional radiating spiral antenna is modeled on HFSS between 4GHz and 6GHz and then is made to work in an S-band radar system, and the design parameters,simulation results and on-the-spot test are also given.