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- Title
Three‐dimensional printed fractal dielectric‐resonator‐based broadband microwave absorber.
- Authors
He, Hanxiao; Ren, Jian; Sun, Yu‐Xiang; Du, Xiao Yu; Yin, Yingzeng
- Abstract
A broadband microwave absorber based on fractal rectangular dielectric resonator (DR) unit is investigated in this paper. The designed absorber can be fabricated with low‐cost three‐dimensional printing technology, using the high‐loss carbon‐carrying acrylonitrile‐butadiene‐styrene (ABS) polymer. To enhance the operating bandwidth, the fractal‐shaped rectangular DR unit is used and multi modes are excited. For verify, a prototype of the absorber with 8 × 8 unit cells were fabricated and measured. The results indicate that the absorptivity can achieve greater than 90% within a relative bandwidth of 130% from 3.1 to 14.7 GHz, which covers the whole C‐band (4–8 GHz) and X‐band (8–12 GHz). In addition, the absorption properties of the absorber at different incident angles were studied.
- Subjects
DIELECTRIC resonators; THREE-dimensional printing; UNIT cell; MICROWAVES; BANDWIDTHS
- Publication
International Journal of RF & Microwave Computer-Aided Engineering, 2022, Vol 32, Issue 5, p1
- ISSN
1096-4290
- Publication type
Article
- DOI
10.1002/mmce.23114