一种利用HFSS萃取漏波天线传播常数的办法

A New Method to Extract Antenna Propagation Constants Using HFSS

本文提出了一种萃取漏波天线相移常数和衰减常数的办法。分别从天线内部场分布和天线远场两个角度分析了漏波天线的原理。通过HFSS萃取天线各单元结构的场分布来获取漏波天线的相移常数和衰减常数,并且利用"等效孔径"的办法得到天线方向图。

Dog-bone shape conductor has been recently proposed as metamaterial layer and used to improve the antenna performance as a high impedance surface. In this letter, we propose a novel 1-D periodic leaky-wave antenna using Dog-bone shape structure. We analyse the leaky wave antenna mechanisms from two sides, which are the antenna inner field and far field. In the inner field, attenuation constant and phase constant is extracted by computing the magnetic Field under each Dog-bone unit. In far field, 'equivalent aperture' method is used to get the antenna far field patterns.