椭圆形平板单极子天线的宽带特性分析

椭圆形平板天线有结构简单、频带宽、馈电相对简单等优点,可以满足小型化天线同时具有宽频带和高增益的要求。目前对于这种结构天线的分析研究只局限于1G以上的频段,在超高频(300M-1G)还鲜有涉及。本文采用比较简单的线栅模型,通过NEC计算软件的模型分析、HFSS的仿真实验和相关公式的推导分析椭圆形平板单极子天线在超高频的宽带特性,对实际制作天线具有一定的指导意义。

The elliptical planar monopole antenna has the advantages of simple structure, wide band and relatively simple feed, so it can meet the demands of wide-band and high-gain at the same tirne. Now, the study of this antenna is only about the frequency range above IG, but little about the ultra-high frequency （300M-1G）. Using the simpler wire grid mode, the characters of this antenna on the UHF band is analyzed by the model analysis using NEC, the simulation using HFSS and the derivation of some correlated equation in this article This analysis is of directive function to the antenna rnanufacture in reality