Risley Prism-Inspired Beam Steering Reflectarray Antenna
- Resource Type
- Conference
- Authors
- Yang, Chenfeng; Wu, Geng-Bo; Chan, Chi Hou
- Source
- 2023 17th European Conference on Antennas and Propagation (EuCAP) Antennas and Propagation (EuCAP), 2023 17th European Conference on. :1-3 Mar, 2023
- Subject
- Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Beam steering
Imaging
Europe
Radar imaging
Metasurfaces
Reflector antennas
Radar antennas
circularly polarized
metasurface
millimeter-wave
geometric phase
- Language
A novel compact beam steering reflectarray system is introduced in this paper. The antenna is composed of a feed waveguide and two metasurfaces with the same phase gradients. The waveguide is integrated into the metasurfaces to reduce the overall system thickness. In analogy with the beam scanning principle of the Risley prism, the generated beam direction is steerable by rotating the two metasurfaces independently. The proof-of-concept antenna achieves a maximum simulated scanning angle of 40°. The presented beam steering approach will provide a new path for future satellite communications.