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Updated: Feb 28, 2026
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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
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Lightweight Ultra-Wideband Absorbing Metamaterials Based on Multi-Dimensional Structural Design
Aixiong Ge1, Shaobo Qu1, Baocai Xu2
1Department of Basic Sciences, Air Force Engineering University, Xi'an 710051, China.
Materials (Basel, Switzerland)
|February 27, 2026
Summary
This study introduces a novel lightweight metamaterial for ultra-wideband microwave absorption. The new material is ultra-thin and ultra-light, offering efficient electromagnetic wave absorption.
Area of Science:
- Materials Science
- Electromagnetics
- Metamaterials
Background:
- Traditional magnetic powder absorbers suffer from high surface density.
- Conventional foam absorbers are often excessively thick.
- There is a need for lightweight, thin, and wide-band microwave absorbers.
Purpose of the Study:
- To propose a novel lightweight, ultra-wideband microwave-absorbing metamaterial.
- To overcome the limitations of traditional microwave absorbers.
- To integrate structure and function for controllable microwave absorption.
Main Methods:
- Designed a multi-layer, multi-dimensional composite structure.
- Incorporated a resistive film frequency-selective surface.
- Utilized a foam wave-absorbing medium and a reflective layer.
Main Results:
- Achieved efficient electromagnetic wave absorption over a 94 GHz wide frequency band.
- Fabricated an ultra-light metamaterial with a density of 0.078 g/cm³.
- Developed an ultra-thin absorber with a thickness of only 4.9 mm.
Conclusions:
- The developed metamaterial offers an effective solution for lightweight, thin-layer, wide-band microwave absorption.
- This study presents a new design concept for advanced microwave-absorbing materials.
- The findings pave the way for next-generation electromagnetic wave absorption technologies.
