Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties
FeSiAl flakes were fabricated by vibrating ball milling the FeSiAl ribbons. And the microwave absorption properties of FeSiAl flakes were improved by doping the multi-wall carbon nanotubes (MWCNTs) with different mass concentrations. The results show that the FeSiAl/MWCNT composites exhibit signific...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/13/9/1557 |
| _version_ | 1797578792455110656 |
|---|---|
| author | Xiaokun Wang Mengchao Guo Yuyao Dai Leilei Liang Dongming Tang Baoshan Zhang Yi Yang |
| author_facet | Xiaokun Wang Mengchao Guo Yuyao Dai Leilei Liang Dongming Tang Baoshan Zhang Yi Yang |
| author_sort | Xiaokun Wang |
| collection | DOAJ |
| description | FeSiAl flakes were fabricated by vibrating ball milling the FeSiAl ribbons. And the microwave absorption properties of FeSiAl flakes were improved by doping the multi-wall carbon nanotubes (MWCNTs) with different mass concentrations. The results show that the FeSiAl/MWCNT composites exhibit significantly improved microwave absorption performance with advantages of strong and broadband absorption in the L-band and S-band. In particular, the reflection loss (RL) of the FeSiAl/MWCNT2 composite reaches −7.4 dB at 1.0 GHz, whereupon, through the electromagnetic simulation software CST Microwave Studio, FeSiAl/MWCNT2 all-dielectric metamaterial absorbers (ADMMAs) were macroscopically designed, achieving an ultra-wideband absorption (RL ≤ −10 dB) of 14.4 GHz (3.6~18.0 GHz). It is recognized that the standing wavelength resonance and diffraction effect are responsible for absorbing electromagnetic waves, and the broadband absorption is improved via dielectric dispersion; their synergistic effect makes the ADMMAs exhibit good microwave absorption performance. This work provides a useful method for designing microwave absorption materials with broadband absorption. |
| first_indexed | 2024-03-10T22:27:47Z |
| format | Article |
| id | doaj.art-323ef2b9c5ea40e5a8d5e0756d64f792 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T22:27:47Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-323ef2b9c5ea40e5a8d5e0756d64f7922023-11-19T11:56:37ZengMDPI AGMetals2075-47012023-09-01139155710.3390/met13091557Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing PropertiesXiaokun Wang0Mengchao Guo1Yuyao Dai2Leilei Liang3Dongming Tang4Baoshan Zhang5Yi Yang6School of Electronic Science and Engineering, Nanjing University, Nanjing 210023, ChinaSchool of Electronic Science and Engineering, Nanjing University, Nanjing 210023, ChinaSchool of Electronic Science and Engineering, Nanjing University, Nanjing 210023, ChinaSchool of Electronic Science and Engineering, Nanjing University, Nanjing 210023, ChinaSchool of Electronic Science and Engineering, Nanjing University, Nanjing 210023, ChinaSchool of Electronic Science and Engineering, Nanjing University, Nanjing 210023, ChinaSchool of Electronic Science and Engineering, Nanjing University, Nanjing 210023, ChinaFeSiAl flakes were fabricated by vibrating ball milling the FeSiAl ribbons. And the microwave absorption properties of FeSiAl flakes were improved by doping the multi-wall carbon nanotubes (MWCNTs) with different mass concentrations. The results show that the FeSiAl/MWCNT composites exhibit significantly improved microwave absorption performance with advantages of strong and broadband absorption in the L-band and S-band. In particular, the reflection loss (RL) of the FeSiAl/MWCNT2 composite reaches −7.4 dB at 1.0 GHz, whereupon, through the electromagnetic simulation software CST Microwave Studio, FeSiAl/MWCNT2 all-dielectric metamaterial absorbers (ADMMAs) were macroscopically designed, achieving an ultra-wideband absorption (RL ≤ −10 dB) of 14.4 GHz (3.6~18.0 GHz). It is recognized that the standing wavelength resonance and diffraction effect are responsible for absorbing electromagnetic waves, and the broadband absorption is improved via dielectric dispersion; their synergistic effect makes the ADMMAs exhibit good microwave absorption performance. This work provides a useful method for designing microwave absorption materials with broadband absorption.https://www.mdpi.com/2075-4701/13/9/1557FeSiAl flakescarbon nanotubemicrowave absorbentbroadband absorptionmetamaterial |
| spellingShingle | Xiaokun Wang Mengchao Guo Yuyao Dai Leilei Liang Dongming Tang Baoshan Zhang Yi Yang Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties Metals FeSiAl flakes carbon nanotube microwave absorbent broadband absorption metamaterial |
| title | Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties |
| title_full | Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties |
| title_fullStr | Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties |
| title_full_unstemmed | Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties |
| title_short | Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties |
| title_sort | microwave all dielectric metamaterial design of fesial mwcnt composite for low frequency broadband absorbing properties |
| topic | FeSiAl flakes carbon nanotube microwave absorbent broadband absorption metamaterial |
| url | https://www.mdpi.com/2075-4701/13/9/1557 |
| work_keys_str_mv | AT xiaokunwang microwavealldielectricmetamaterialdesignoffesialmwcntcompositeforlowfrequencybroadbandabsorbingproperties AT mengchaoguo microwavealldielectricmetamaterialdesignoffesialmwcntcompositeforlowfrequencybroadbandabsorbingproperties AT yuyaodai microwavealldielectricmetamaterialdesignoffesialmwcntcompositeforlowfrequencybroadbandabsorbingproperties AT leileiliang microwavealldielectricmetamaterialdesignoffesialmwcntcompositeforlowfrequencybroadbandabsorbingproperties AT dongmingtang microwavealldielectricmetamaterialdesignoffesialmwcntcompositeforlowfrequencybroadbandabsorbingproperties AT baoshanzhang microwavealldielectricmetamaterialdesignoffesialmwcntcompositeforlowfrequencybroadbandabsorbingproperties AT yiyang microwavealldielectricmetamaterialdesignoffesialmwcntcompositeforlowfrequencybroadbandabsorbingproperties |