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随着现代通信技术的发展,人们对小尺寸宽带天线的需求越来越大。人工电磁结构独特的电磁特性突破了传统的电磁理论的基本概念,为微带天线小型化指出了一种崭新的研究方法。本文通过在传统矩形微带天线上蚀刻工字型的人工电磁结构实现微带天线小型化,并在微带天线接地板上开缝来展宽带宽,研究设计出一款5.8GHz的矩形微带贴片天线,其辐射单元尺寸为21mm×17.05mm,蚀刻15个工字型谐振环构造出一款辐射单元尺寸为15mm×13.2mm的新型小型化微带天线天线,天线增益为4.28d B,相比传统微带天线整体尺寸缩减了44.6%,天线带宽由1.34%展宽至42.9%。
With the development of modern communication technology, the demand for small size broadband antenna is increasing. The unique electromagnetic properties of artificial electromagnetic structure have broken through the basic concepts of traditional electromagnetic theory and pointed out a new research method for the miniaturization of the microstrip antenna. In this paper, the microstrip antenna is miniaturized by etching the I-shaped artificial electromagnetic structure on a traditional rectangular microstrip antenna and the bandwidth is broadened by stitching the microstrip antenna grounding plate. A 5.8GHz rectangular microstrip patch Antenna, the radiation unit size of 21mm × 17.05mm, etched 15 I-ring resonant structure of a radiation unit size of 15mm × 13.2mm new miniaturized microstrip antenna, the antenna gain of 4.28d B, phase The overall size of the traditional microstrip antenna is reduced by 44.6% and the bandwidth of the antenna is broadened from 1.34% to 42.9%.