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Updated: Jun 19, 2026
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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Simultaneous normal and parallel incidence planar left-handed metamaterial.
Jianhong Lv1, Baorong Yan, Minghai Liu
1College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. lvjianhong@smail.hust.edu.cn
Summary
This study numerically investigates negative refraction in a planar left-handed metamaterial (LHM) using fourfold C-shaped rings. Results confirm LHM properties for multiple incidence directions, highlighting distinct electric responses due to current distribution.
Area of Science:
- Electromagnetism
- Materials Science
- Metamaterials
Background:
- Left-handed metamaterials (LHMs) exhibit unique electromagnetic properties, including negative refraction.
- Metamaterials with C-shaped resonant structures are promising for achieving LHM behavior.
- Understanding wave interaction with LHMs under various incidence angles is crucial for applications.
Purpose of the Study:
- To numerically investigate the negative refraction phenomenon in a planar left-handed metamaterial (LHM).
- To analyze the electromagnetic wave behavior for simultaneous normal and parallel incidence.
- To explore the influence of structural design on LHM properties and electric responses.
Main Methods:
- Numerical simulations were employed to study the metamaterial's response.
- The metamaterial design consists of fourfold C-shaped rings printed symmetrically on both sides of substrates.
- Electromagnetic wave incidence was analyzed for both normal and parallel cases.
Main Results:
- The fourfold C-shaped metamaterial demonstrated robust left-handed properties for electromagnetic waves incident from three different directions.
- Both retrieved and simulated results consistently verified the left-handed characteristics of the metamaterial.
- Distinct electric responses were observed for normal and parallel incidence cases.
Conclusions:
- The designed fourfold C-shaped metamaterial effectively exhibits left-handed properties and negative refraction.
- The observed differences in electric response are attributed to the varying distribution of induced currents within the metallic wires.
- This research validates the potential of C-shaped ring structures for developing advanced metamaterials.
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