Version 1
: Received: 22 September 2023 / Approved: 22 September 2023 / Online: 25 September 2023 (05:14:18 CEST)
How to cite:
Xu, F. Novel Testing Method for Absorbing Materials with Comparison of Efficiency and Gain. Preprints2023, 2023091568. https://doi.org/10.20944/preprints202309.1568.v1
Xu, F. Novel Testing Method for Absorbing Materials with Comparison of Efficiency and Gain. Preprints 2023, 2023091568. https://doi.org/10.20944/preprints202309.1568.v1
Xu, F. Novel Testing Method for Absorbing Materials with Comparison of Efficiency and Gain. Preprints2023, 2023091568. https://doi.org/10.20944/preprints202309.1568.v1
APA Style
Xu, F. (2023). Novel Testing Method for Absorbing Materials with Comparison of Efficiency and Gain. Preprints. https://doi.org/10.20944/preprints202309.1568.v1
Chicago/Turabian Style
Xu, F. 2023 "Novel Testing Method for Absorbing Materials with Comparison of Efficiency and Gain" Preprints. https://doi.org/10.20944/preprints202309.1568.v1
Abstract
The massive use of electronic equipment has raised concerns about electromagnetic (EM) pollution, leading to increased attention to EM shielding in both civil and military applications. EM absorption materials play a crucial role in reducing the energy of microwaves projected onto their surface. In this work, we propose a novel OTA (over-the-air) antenna test method to evaluate and analyze the functionality of EM absorption materials. This method offers a new and practical way to assess the effectiveness of these materials. Measured results indicate that the presence of the EM absorption material led to a decrease in antenna gain of approximately 2-3 dB, a reduction in efficiency of more than 10-15%, and a smaller radiation pattern during the actual testing process. These findings highlight the impact of EM absorption materials on antenna performance. Compared to the traditional S-parameter testing method, the gain comparison testing method exhibits the advantages of higher accuracy and simpler operation in the lower frequency experiment.
Keywords
OTA antenna test; wave absorption; stealth material
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
