A non-iterative objective radiation field generation method for 1-bit coding metasurface
A non-iterative objective radiation field generation method for 1-bit coding metasurface
- Author(s): C. Wu 1 ; T. Jin 1 ; Y. Dai 1 ; P. You 1
- DOI: 10.1049/icp.2021.0504
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- Author(s): C. Wu 1 ; T. Jin 1 ; Y. Dai 1 ; P. You 1
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View affiliations
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Affiliations:
1:
College of Electronic Science and Engineering , National University of Defense Technology , Changsha , China
Source:
IET International Radar Conference (IET IRC 2020),
2021
p.
11 – 16
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Affiliations:
1:
College of Electronic Science and Engineering , National University of Defense Technology , Changsha , China
- Conference: IET International Radar Conference (IET IRC 2020)
- DOI: 10.1049/icp.2021.0504
- ISBN: 978-1-83953-540-6
- Location: Online Conference
- Conference date: 04-06 November 2020
- Format: PDF
Digital coding and programmable metamaterials have attracted widespread attention in recent years, which have brought new ideas to the fields of communication, detection, and imaging. Optimizing the code pattern to achieve fast, high accuracy radar detection has practical significance for vital signal detection in scenarios where the body position information is known. In this paper, we derived the corresponding encoding mode from the desired radiation pattern and proposed a non-iterative objective radiation field generation method for 1-bit coding metasurface. Our simulation experiments prove that the method we proposed could generate multiple radiation pattern by only one coding metamaterial without iteration. The comparison of the proposed method and the modified GS algorithm is given in the simulation part to show its superiority. The vital signal detecting application of the proposed method is also illustrated in the simulation part. The proposed method may simplify the specific code pattern’s calculation process of future smart devices with reprogrammable functions, which may lead to advances in various applications such as aperture-coded imaging and, directional radiation, specifically designated spot monitoring and long-distance vital signal detection.
Inspec keywords: radar detection; signal detection; electromagnetic metamaterials; antenna radiation patterns; encoding
Subjects: Artificial electromagnetic wave materials and structures; Radar equipment, systems and applications; Single antennas; Radar theory; Signal detection; Codes