期刊
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
卷 63, 期 2, 页码 390-397出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TEMC.2020.3006328
关键词
Permittivity; Printing; Absorption; Frequency measurement; Fabrication; Dielectrics; Resonant frequency; Composite materials; electromagnetic wave absorption; microwave measurement; three-dimensional (3-D) printing
资金
- French Defense Agency (DGA)
- French Research Agency (ANR)
This article suggests applying 3-D printing technology to the design and fabrication of honeycomb microwave absorbers. The printability of honeycomb structures and effective dielectric properties were evaluated, highlighting the potential of 3-D printing in absorber design and fabrication. The technology was demonstrated through the fabrication and measurement of various honeycomb absorbers, showing promising results in absorption levels.
In this article, we propose to apply 3-D printing technology to the design and realization of honeycomb microwave absorbers. First, printability of simple honeycomb structures, made of a lossy dielectric material, was evaluated and validated by measurement in the 2-18 GHz frequency band. Effective dielectric properties of honeycomb structures with different dimensions are also discussed. Then, the interest of 3-D printing technology was highlighted by the design, fabrication, and measurement of a multiscale honeycomb absorber that can significantly increase the relative bandwidth. The 3-D printed honeycomb absorbers are compared with others technologies. The potential of this technology was also illustrated by the fabrication and measurement of a pyramidal honeycomb absorber that demonstrates an absorption level of more than 22.9 dB over the 2-18 GHz frequency band.
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