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Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Reflectarray Antenna Capable of 1-Bit Switchable W-Band Beamforming Network

  • Asamani, Bismark (Dept. of Information and Communication Engineering, Hanbat National University) ;
  • Pyo, Seongmin (Dept. of Information and Communication Engineering, Hanbat National University)
  • Received : 2021.05.28
  • Accepted : 2021.06.17
  • Published : 2021.06.30
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Abstract

This paper presents a new reflectarray antenna capable with 1-bit switchable capability for W-band beamforming network. The proposed antenna has been optimized using two unit-cells with sizes of 1.0 mm and 1.3 mm to form a total number of 193 radiating elements on a square aperture surface of length 30 mm. These radiating elements are spaced 0.5 wavelengths apart and fed by a 15 dBi pyramidal horn antenna as the feed antenna placed 53 mm away from the aperture center. The proposed reflectarray achieves a realized peak gain of 22.52 dBi, a half-power beamwidth of 5.1° in both E- and H-planes at the test frequency of 80 GHz and operates over a wide bandwidth from 74 GHz to 90 GHz.

Keywords

Acknowledgement

This work was supported by he National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT) (2021R1A2C2011560) and in part by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1D1A1B04932071).

References

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