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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
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Design of a Multi-Beam Switching Antenna Loaded with a Square Metasurface
Ningchuan Liu1,2, Lin Huang1, Lingxiao Huang2
1School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
Micromachines
|November 27, 2025
Summary
This study introduces a novel transmissive metasurface antenna for multi-beam communication. The design achieves four independently steerable beams with high gain and wide beamwidth, offering a cost-effective solution.
Area of Science:
- Electromagnetic Engineering
- Antenna Theory
- Metamaterials
Background:
- Multi-beam and beam-scanning antennas are crucial for advanced communication systems.
- These antennas enhance coverage, mitigate multipath fading, and improve spectrum efficiency.
Purpose of the Study:
- To design and demonstrate a novel transmissive metasurface antenna capable of generating multiple independently steerable beams.
- To validate the antenna's performance characteristics, including gain and beamwidth.
Main Methods:
- A transmissive metasurface antenna was designed using a microstrip square-ring patch antenna as the feed source.
- A 7x7 square patch metasurface was positioned above the feed to enable beam steering by activating four distinct feed ports.
- The antenna was operated at a frequency of 12.6 GHz.
Main Results:
- The antenna successfully generated four independently steerable beams.
- A peak gain of 10.4 dB was achieved.
- The 3 dB beamwidth for all beams exceeded 23°, indicating wide coverage.
Conclusions:
- The proposed transmissive metasurface antenna design is structurally simple, low-profile, and cost-effective.
- This approach offers flexible manipulation of electromagnetic wave radiation for multi-beam communication.
- It presents a novel methodology for developing advanced multi-beam antennas.
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