Design of a Wideband 1-Bit Metal-Only Reconfigurable Reflectarray Antenna
- Publisher:
- Institute of Electrical and Electronics Engineers (IEEE)
- Publication Type:
- Conference Proceeding
- Citation:
- 2023 IEEE 11th Asia-Pacific Conference on Antennas and Propagation, APCAP 2023 - Proceedings, 2023, volume1, pp. 1-2
- Issue Date:
- 2023-01-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| Design_of_a_Wideband_1-Bit_Metal-Only_Reconfigurable_Reflectarray_Antenna.pdf | Published version | 1.13 MB |
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A 1-bit metal-only reconfigurable reflectarray antenna is proposed in this work. The element of the reflectarray antenna is a 3-D structure composed of a rectangular base, two orthogonal metal plates. By setting two cylindrical slots of different sizes on these two plates, 180° reflected phase difference of two orthogonal linearly polarized waves is obtained. By rotating the proposed element by 90°, the 1 -bit reflected phase can be achieved. Then, a 40 × 40 element reflective aperture spatially fed by a horn antenna is designed and simulated. The beam-scanning of the presented reconfigurable reflectarray antenna can be realized by rotating the elements on the reflective aperture. In simulation, a peak gain of 27.3dBi at 10GHz corresponding to an aperture efficiency of 29.0% are obtained. Furthermore, the maximum gain drop within 60° beam scanning range is 4.0 dB at 10.0GHz while the maximum beam pointing errors is only 1°. These results indicate that this reflectarray antenna has the advantages of high efficiency, wideband and high stability.
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