A Compact Wideband High-Gain Metasurface-Lens-Corrected Conical Horn Antenna

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Abstract
In this paper, a compact wideband high-gain metasurface-lens-corrected conical horn (meta-horn) antenna is developed. A metasurface lens that has a thickness of less than 0.1λ is developed to provide wideband transmission phase compensation, with high transmission efficiency. The ultra-thin lens is then used to develop a wideband high-gain horn antenna that has a shorter horn length and a large flare angle, resulting in a compact horn structure that is easy to be fabricated and mounted, and at a low cost. Simulations and experiments were conducted to demonstrate the effectiveness of the design. Measured results show that the meta-horn has a peak gain of 24.2 dBi and a 3-dB gain bandwidth of over 26%.
Funding Information
  • Fujian Province (2016I0008)
  • Quanzhou Science and Technology Bureau (2017T005)
  • Cultivating Postgraduates’ Innovative Ability in Scientific Research of Huaqiao University (1611301021, 17013082018)

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