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设计了一种埋藏介质贴片引向天线,工作在2.4 GHz的无线工业、科学、医学频段,该天线采用金属片与介质板层叠安放,辐射方向垂直于天线表面,属于端射天线.嵌入了超材料结构,剖面结构尺寸缩小为原天线的69%.同时,天线匹配性能有所提升,辐射特性优于原天线.采用有限元全波仿真技术对天线的设计进行了分析和优化,改进后的天线在2.4 GHz频点回波损耗下降了3 d B,E面和H面辐射场强提升了1 d Bi,实现了天线的小型化和灵活性.最后通过时域有限积分法对辐射性能进行了验证.
A buried dielectric patch is designed to lead to the antenna and work in the 2.4 GHz wireless industrial, scientific and medical frequency band. The antenna is laminated with a metal plate and a dielectric plate perpendicular to the antenna surface, and is an end-fired antenna. Metamaterial structure, the size of the cross-sectional structure is reduced to 69% of the original antenna.At the same time, the matching performance of the antenna is improved, the radiation characteristics are better than the original antenna.The antenna design is analyzed and optimized by finite element full-wave simulation technology, The antenna loss decreases by 3 d B at 2.4 GHz, and the field intensity of E and H planes increases by 1 d Bi, which realizes the miniaturization and flexibility of the antenna.Finally, the radiation performance Verified.