Ultra-wideband absorber based on multilayer lossy frequency selective surface

Abstract

In this letter, a multilayer dielectric with a lossy frequency-selective surface (FSS) absorber is proposed, which is composed of three layers of resistive film-dielectric composite layer and a metal grounded plane. Particularly, each resistive film-dielectric composite layer consists of a polyethylene terephthalate (PET), polymethacrylimide foam (PMI), and resistive film layer. An equivalent circuit model is established to further understand the performance of the absorber based on the impedance matching approach and the transmission line theory. Experimental results reveal that the metamaterial absorber (MMA) covers -10 dB bandwidth of 1.96-21.8 GHz for normal incidence. Meanwhile, the absorption rate can retain more than 80% for both TE and TM polarizations within 55° incidence angles. Furthermore, the fractional bandwidth of the MMA is 167% and its thickness is only 0.108 ?L. The MMA has the characteristics of ultra-wideband, high absorption rate, and polarization stability, making it suitable for communication systems.

KEYWORDS:

• Lossy frequency-selective surface
• multilayer dielectric
• resistive film
• metamaterial absorber (MMA)

Acknowledgements

The authors wish to thank the anonymous reviewers for their valuable suggestions.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Natural Science Foundation of Jiangsu Province under Grant BK20221115; the Fundamental Research Funds for the Central Universities under Grant 2022QN1052; the National Natural Science Foundation of China under Grant 62371451; the Open Project of State Key Laboratory of Millimeter waves under Grant K202310; the China Postdoctoral Science Foundation under Grant 2023M742442; and the double Innovation PhD project of Jiangsu Province under Grant JSSCBS20221517.

Notes on contributors

Yue Wang

Yue Wang received the Ph.D. degree in Electronic Information Science and Technology from Jilin University in 2021. In August 2021, she joined the School of Information and Control Engineering at China University of Mining and Technology as an Associate Professor. Throughout her career, she has focused on research in microwave photonics, optical communication, and silicon photonics.

Mengzhen Yang

Mengzhen Yang is a master's student at the School of Information and Control Engineering, China University of Mining and Technology, and her main research interests include the design of metamaterial absorbers.

Shuang Qiu

Shuang Qiu is a master's student at the School of Information and Control Engineering, China University of Mining and Technology.

Xianglin Kong

Xianglin Kong is a Ph.D. candidate at the School of Information and Control Engineering, China University of Mining and Technology, with main research interests in RF/microwave antennas and hypersurface design.

Jun Wang

Jun Wang received the Ph.D. degree in electromagnetic field and microwave technology from Southeast University, Nanjing, in 2021. He joined the China University of Mining and Technology, Xuzhou, China, in 2021. He has authored or co-authored over 30 referred journal and conference papers. His current research interests include the design of RF/microwave antennas and components.

Zongyan Li

Zongyan Li received the Ph.D. degree from the Beijing University of Posts and Telecommunications, Beijing, China, in 2012. In 2012, she joined the China University of Mining and Technology as a lecture. Her research interests focus on coding for reliable digital communications.

Shiyin Li

Shiyin Li received the Ph.D. degree in information and communication engineering from the China University of Mining and Technology, Xuzhou, China, in 2010. Since 2010, he has been a Professor with the School of Information and Control Engineering, China University of Mining and Technology, where he is the Head of the Department of Information Engineering. His research interests include wireless communication and network congestion control.