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Given that high frequency electromagnetic waves primarily enter buildings through windows and glass doors, there is an increasing need for switchable optically-transparent shielding with broad stopband. Herein, A novel design for a switchable and optically transparent frequency selective surface (FSS) with ultrawide-stopband is presented in this study. The structure consists of a polymethyl methacrylate (PMMA) layer sandwiched between polydimethylsiloxane (PDMS) layers which contain liquid metal microchannels arranged in an orthogonal Ω-shaped configuration. The mobility of the liquid metal allows for switching the FSS response from an all-pass to an ultrawide bandstop behavior. The proposed FSS achieves a rejection bandwidth of 18.1 GHz that covers P, L, S, C, X and Ku bands, while maintaining a transparency of 81 % and high angular stability up to 80°, regardless of polarization. Furthermore, the mechanism underlying the ultrawide stopband and high angular stability is explored through an analysis of reflection and absorption for both TE and TM polarizations. Experimental validation under both normal and oblique incidence demonstrates the ultrawide-stopband performance of the fabricated FSS.
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Keywords:
- electromagnetic shielding /
- frequency selective surface (FSS) /
- liquid metal /
- optically transparent /
- switchable
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[1] B. A. Munk, 2000 Frequency Selective Surfaces:Theory and Design (New York, NY, USA:Wiley) p63
[2] Wang D J, Sun Z H, Zhang Y, Tang L, Yan L P 2024 Acta Phys. Sin. 73 024201 (in Chinese)[王东俊,孙子涵,张袁,唐莉,闫丽萍 2024 物理学报 73 024201]
[3] Zhao Y T, Li Y S, Yang G H 2020 Acta Phys. Sin. 69 198101 (in Chinese)[赵宇婷,李迎松,杨国辉 2020物理学报 69 198101]
[4] Liao W J, Zhang W Y, Hou Y C, Chen S T, Kuo C Y, Chou M 2019 IEEE Antennas Wirel. Propag. Lett. 18 2076
[5] Feng K S, Li N, Li T 2022 Acta Phys. Sin. 71 034101 (in Chinese)[冯奎胜,李娜,李桐2022 物理学报71 034101]
[6] Chiu C N, Chang Y C, Hsieh H C, Chen C H 2010 IEEE Trans. Electromagn. Compat. 52 56
[7] Li D, Li T W, Li E P, Zhang Y J 2018 IEEE Trans. Electromagn. Compat. 60 768
[8] Nauman M, Saleem R, Rashid A K, Shafique M F 2016 IEEE Trans. Electromagn. Compat.58 419
[9] Yin W Y, Zhang H, Zhong T, Min X L 2018 IEEE Trans. Electromagn. Compat. 60 2057
[10] Chaluvadi M, Kanth V K, Thomas KG 2020 IEEE Trans. Electromagn. Compat.62 1068
[11] Yong W Y, Rahim S K A, Himdi M, Seman F C, Suong D L, Ramli M R, Elmobarak H A 2018 IEEE Access. 6 11657
[12] Chaudhary V, Panwar R 2021 IEEE Trans. Magn. 57 2800710
[13] Abirami B S, Sundarsingh E F, Ramalingam V S 2020 IEEE Trans. Electromagn. Compat. 62 2643
[14] Sanjeev Y, Prakash J C, Mohan S M 2019 IEEE Trans. Electromagn. Compat. 61 887
[15] Yang Y, Li W, Salama K N, Shamim A 2021 IEEE Trans. Antennas Propag. 69 2779
[16] Lei Q Y, Luo Z L, Zheng X Y, Lu N, Zhang Y M, Huang J F, Yang L, Gao S M, Liang Y Y, He S L 2023 Opt. Mater. Express. 13 469
[17] Guo Q X, Peng Q Y, Qu M J, Su J X, Li Z R 2022 Opt. Express30 7793
[18] Zhang Y Q, Dong H X, Mou N L, Chen L L, Li R H, Zhang L 2020 Opt. Express. 28 26836
[19] Jiang H, Yang W, Lei S, Hu H, Chen B, Bao Y, He Z 2021 Opt. Express. 29 29439
[20] Dewani A A, O'Keefe S G, Thiel D V, Galehdar A 2018 IEEE Trans. Antennas Propag. 66 790
[21] Habib S, Kiani G I, Butt M F U 2019 IEEE Access. 7 65075
[22] Xu, S J, Li Y, Ahmed M, Fang L D, Jin N, Li B H, Huo S Y, Lei X Y, Sun Z, Yu H Y, Li E P 2021 IEEE Access. 9 161854
[23] Syed I S, Ranga Y, Matekovits L, Esselle K P, Hay S 2014 IEEE Trans. Electromagn. Compat. 56 1404
[24] Katoch K, Jaglan N, Gupta S D 2021 IEEE Trans. Electromagn. Compat. 63 1423
[25] Li P, Liu W, Ren Z, Meng W, Song L2022 IEEE Access. 10 9446
[26] Zhou S H, Fang X Y, Li M M, Yu Y F, Chen R S 2020 Acta Phys. Sin. 69 204101 (in Chinese)[周仕浩,房欣宇,李猛猛,俞叶峰,陈如山2020物理学报 69 204101]
[27] Lei B J, Zamora A, Chun T F, Ohta A T, Shiroma W A. 2011 IEEE Microw. Wirel. Compon. Lett. 21 465
[28] Ghosh S, Srivastava K V 2018 IEEE Trans. Electromagn. Compat. 60 166
[29] Saikia M, Srivastava K V, Ramakrishna S A 2020 IEEE Trans. Antennas Propag. 68 2937
[30] Sivasamy R, Moorthy B, Kanagasabai M, Samsingh V R, Alsath M G N 2018 IEEE Trans. Electromagn. Compat.60 280
[31] Han P, Wang J, Wang J F, Ma H, Shao T Q, Chen H Y, Zhang J Q, Qu S B 2016 Acta Phys. Sin. 65 197701 (in Chinese)[韩鹏,王军,王甲富,马华,邵腾强,陈红雅, 张介秋,屈绍波. 2016物理学报 65 197701]
[32] Ghosh S, Lim S 2018 IEEE Trans. Antennas Propag. 66, 4953
[33] Wang C R, Yan L P, Sun Z H, Yang Y, Zhao X 2022 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC), Beijing, China, September 1-4, 2022 p669
[34] Sheikh S 2016 IEEE Antennas Wirel. Propag. Lett. 15 1661
[35] Ghosh S, Lim S 2018 IEEE Trans. Microw. Theory Tech.66 3857
[36] Yan L P, Xu L L, Gao R X K, Zhang J H, Yang X P, Zhao X 2022 IEEE Trans. Electromagn. Compat. 64 251
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