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• Rui Wu

  School of Integrated Circuits, Guangdong University of Technology

• Jian-Hong Lin

  School of Information Engineering, Guangdong University of Technology

• Bei-Wen Lin

  School of Integrated Circuits, Guangdong University of Technology

• Wei-Ping Cao

  School of Information and Communication, Guilin University of Electronic Technology

• Fu-Chang Chen

  School of Electronic and Information Engineering, South China University of Technology

A low-profile wideband dual-polarized antenna with nonuniform metasurface is proposed for 2G/3G/4G/IMT applications. The proposed antenna maintains broad bandwidth and stable gain but has a low profile of only 0.17λ₀ at 2.0GHz, which contributes to the metasurface designed above the radiator. The nonuniform circular elements of the metasurface are set to reduce the coupling between each element, thus stable radiation patterns and low cross-polarization levels can be realized. The test results show a wide impedance bandwidth range from 1.4GHz to 2.79GHz (66.3%) for |S₁₁|<-10dB and high isolation is more than 27dB. The measured stable gain is 9±1dBi. In the entire frequency band, stable radiation patterns are achieved with low cross-polarization levels below -18dB.