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通过在共面波导上引入周期排列的缝隙和二阶Hilbert分形接地曲线,实现了一种新型复合左右手传输线。在等效电路模型的基础上,利用HFSS和Serenade软件对该传输线的电路参数进行了拟合。拟合出的电路参数表明:该传输线可以用于设计具有较宽带宽的小型化零阶谐振天线。作为验证,设计并制作了一个两单元零阶谐振天线。实验结果表明:该天线比之前报道的复合左右手零阶谐振天线具有更小的电尺寸和更宽的工作带宽。基于这些优点,该天线可以用于现代通信系统中。
By introducing periodically arranged slits and second-order Hilbert fractal grounding curves on the coplanar waveguide, a new type of compound left and right hand transmission line is realized. Based on the equivalent circuit model, the circuit parameters of the transmission line were fitted by HFSS and Serenade software. The fitting circuit parameters show that the transmission line can be used to design a miniaturized zero-order resonant antenna with wider bandwidth. As a verification, a two-unit zero-order resonant antenna was designed and fabricated. The experimental results show that the antenna has smaller electrical dimensions and wider working bandwidth than the previously reported composite left-handed zero-order resonant antenna. Based on these advantages, the antenna can be used in modern communication systems.