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Materials Science in Additive Manufacturing Wide-angle broadband MMA with CB-CIP/PLA

A B C

Figure 13. Distribution of (A) electric field, (B) magnetic field, and (C) power loss of the stepped square hole structure at the frequency 15.056 GHz in the
transverse electric (TE) mode.
Abbreviation: TE: Transverse electric

experimental results reveal that broadband microwave
absorption can be realized. In addition, the simulation
results demonstrate that both TE polarization and
TM polarization have excellent wide-angle microwave
absorption. The proposed MMA in this study, based on the
SSH structure with CB-CIP/PLA composite, can be easily
fabricated using high-efficiency, low-cost FFF 3D printing
technology and holds significant potential for microwave
absorption applications.

Acknowledgments
None.

Funding
This research was supported by the Xiamen Science and
Technology Plan Project (3502Z20163010), Enterprise
Figure 14. Comparison between experimental and simulation results of Entrusted Project (605-54321070), Fujian Provincial
reflection loss of the stepped square hole structure Science and Technology Planning Project (2019H6016,
2019H0014), and the Fujian Province Industry-University
Second, a pair of horn antennas were placed in parallel Cooperation Plan (2023H6015).
during actual testing, but there may be situations where
the incident angle is greater than 0°, resulting in a Conflict of interest
decrease in absorption. However, the normal incidence
of electromagnetic waves was used in the simulation of The authors declare that they have no competing interests.
the tests. Finally, the boundary effect in the actual SSH Author contributions
structure samples in the reflectivity tests may contribute
to the difference between experimental and simulation Conceptualization: Fei Wang, Kaiyong Jiang, and Peifeng Li
results. 33 Formal analysis: Qianfeng Zhou, Hongsheng Liu, and
Pengfei Fang
4. Conclusion Funding acquisition: Fei Wang and Kaiyong Jiang
A complex gradient microwave absorbing structure (SSH), Investigation: Fei Wang, Qianfeng Zhou, and Pengfei Fang
composed of CB-CIP/PLA composite, was designed Methodology: Fei Wang, Kaiyong Jiang, and Peifeng Li
and optimized using electromagnetic simulation and Resources: Hongsheng Liu and Kaiyong Jiang
subsequently fabricated by FFF 3D printing. The SSH Validation: Fei Wang, Kaiyong Jiang, and Peifeng Li
structure dissipates incident energy largely through the Writing – original draft: Fei Wang and Qianfeng Zhou
resonance of the gradient structure, magnetic coupling Writing – review and editing: Peifeng Li
effect, and edge diffraction. Only 50% mass addition of Ethics approval and consent to participate
loss material is required to achieve effective absorption in
the frequency range of 2 – 18 GHz. Both simulation and Not applicable.

Volume 3 Issue 3 (2024) 10 doi: 10.36922/msam.4158