A broadband patch antenna based on the metasurface is designed by simulation.The characteristics of broadband are achieved by etching"工"type slots on the rectangular radiation patch.On the basis of not changing the antenna size and working fre-quency band,a single-layer metasurface composed of 5×5 square cell structure is loaded directly above the antenna medium sub-strate for H,which improves the impedance matching of the antenna and improves the gain of the antenna.The simulation results show it can operate from 4.7 GHz to 7.9 GHz,and the bandwidth is 3.2 GHz,the broadband is realized.The radiation direction is sta-ble in the working frequency band,with a maximum gain of 6.83 dBi.
关键词
超表面/微带天线/宽带/高增益
Key words
metasurface/microstrip antenna/broadband/high gain
维普
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