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2025-01-04
A Novel Large Platform Virtualization Method for Antenna Electromagnetic Environment Effects Test
By
Progress In Electromagnetics Research C, Vol. 151, 157-165, 2025
Abstract
The electromagnetic environment effect test of UAV airborne equipment is commonly completed in anechoic chambers. Due to the influence of platform on antenna radiation characteristics, it is necessary to move the large platform with a antenna to anechoic chambers. However, testing costs even make this case impossible. To evaluate the electromagnetic effect of platform-free antenna ports, this study proposes an antenna platform virtualization technique. The FIT (Finite Integration Technique) is employed to calculate the antenna gain corresponding to different frequencies with and without an antenna platform. Subsequently, the difference in antenna gain under these two cases is obtained. By compensating for this variation at the interference source, the frequency domain response of the interference signal at the antenna port can be predicted, disregarding the platform. To validate the effectiveness of the proposed technique, a UAV's airborne antenna is employed for simulation analysis. The root-mean-square error of the proposed technique is less than 0.5 dB. Moreover, in terms of time domain transient interference, the effect of the platform on the transient interference signal at the antenna port is equivalent to a transfer function. The root-mean-square error for the transient response prediction method is less than 0.1%. The results demonstrate that the proposed antenna platform virtualization technique makes it possible to test the electromagnetic effect of antenna in anechoic chambers without a platform.
Citation
Ceyi Ma, Yingjie Wang, Ze Yu, and Heng Zhang, "A Novel Large Platform Virtualization Method for Antenna Electromagnetic Environment Effects Test," Progress In Electromagnetics Research C, Vol. 151, 157-165, 2025.
doi:10.2528/PIERC24062702
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