Micromachines (Mar 2024)

Experimental Investigation of Reflectarray Antennas for High-Power Microwave Applications

  • Jianing Zhao,
  • Yongzhen Dong,
  • Hao Li,
  • Tianming Li,
  • Wei Liu,
  • Yihong Zhou,
  • Haiyang Wang,
  • Biao Hu,
  • Fang Li,
  • Keqiang Wang,
  • Bin Qiu

DOI
https://doi.org/10.3390/mi15030399
Journal volume & issue
Vol. 15, no. 3
p. 399

Abstract

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The power capacity of reflectarray antennas (RAs) is investigated through full-wave simulations and high-power microwave (HPM) experiments in this paper. In order to illustrate the results in detail, two RA elements are designed. The simulated power handling capacity of two RA elements are 7.17 MW/m2 and 2.3 GW/m2, respectively. To further study the HPM RA, two RA prototypes operating at 2.8 GHz are constructed with the aperture size of 1 m × 1 m. Simulations and experimental measurements are conducted for the two prototypes. The experimental results demonstrate that, even when subjected to 1 GW of power, the radiation beam of the RA with the second elements can still propagate in the intended direction. This research will establish a basis for advancing the practicality of RAs in HPM applications.

Keywords