一种带宽扩展低剖面基片集成波导缝隙天线

A Bandwidth Extended Low Profile Substrate Integrated Waveguide Slot Antenna

本文采用了特别设计的谐振腔结构,通过调整矩形辐射缝隙的角度来调整天线等效电路的参数,从而实现天线的双模工作。另外,通过共面波导-SIW的馈电方式,实现了低剖面下天线的宽带阻抗匹配,天线的尺寸为1.1λ_(0)×1.1λ_(0)×0.016λ_(0)。实测结果与仿真结果吻合,-10dB工作带宽达到了2.66%。

In this paper,a arefully designed resonant cavity structure is adopted,and the parameters of the antenna equivalent circuit are adjusted by adjusting the angle of the rectangular radiation slot,so as to realize the dual-mode operation of the antenna.In addition,through the coplanar waveguide-SIW feeding method,the broadband impedance matching of the antenna under low profile is realized,and the size of the antenna is 1.1λ_(0)×1.1λ_(0)×0.016λ_(0).The measured results are consistent with the simulation results,and the-10 dB operating bandwidth reaches 2.66%.