A dual-polarization ultra-wideband(UWB) horn antenna is proposed in this paper. This antenna uses quad-ridge structure to achieve broadband and dual-polarization characteristics. In order to reduce the overall weight, there is no metal wall structure and part of the ridge structure which has little effect on the electric field is removed. The measured VSWR results are less 2 in 1.5-18GHz and the usable frequency band is 1-20GHz. The port isolation results are less than -25dB, the gain results are 10dB Typ. and the cross polarization isolation are less than -20dB. The weight is around 0.56 Kg around. The proposed antenna has been processed and applied in measured systems.
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Hu et al. (2024) studied this question.
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