National Natural Science Foundation of China(52304410;51972242);Science Fund for Creative Research Groups of the National Natural Science Foundation of Hubei Province(2020CFA038);The Key Research and Development Project of Hubei Province(2020BAA028);Major Project of Hubei Province (Functional Coating and Materials, No.2023BAA003)(2023BAA003);Young Top-Notch Talent Cultivation Program of Hubei Province
QIAN Ying-jie, LIU Hai-hong, CHENG Yong-zhi, et al. Design of a Dual-Band Pulse Wave Selective Metasurface Absorber Based on Nonlinear Circuits[J]. Acta Electronica Sinica, 2024, 52(06): 2067-2073.
QIAN Ying-jie, LIU Hai-hong, CHENG Yong-zhi, et al. Design of a Dual-Band Pulse Wave Selective Metasurface Absorber Based on Nonlinear Circuits[J]. Acta Electronica Sinica, 2024, 52(06): 2067-2073. DOI:10.12263/DZXB.20230193
Design of a Dual-Band Pulse Wave Selective Metasurface Absorber Based on Nonlinear Circuits
a dual-band metasurface absorber (MSA) based on nonlinear circuits that can selectively absorb pulse wave in the same frequencies is proposed. The unit-cell of the designed dual-band MSA consists of two metal square-ring shaped resonators with the same shape but different wire width
the middle dielectric layer and the metal ground plane. The simulation results show that the absorptance of the dual-band MSA increases firstly and then decreases with the increase of the input power at -20~10 dBm. When the power is at -5 dBm
the absorptance of the designed dual-band MSA of the pulse wave reaches 97% and 92% at 3.2 GHz and 4.1 GHz
respectively
and that of the continuous wave is only 28% and 39%. In addition
the absorptance of the MSA decreases with the increase of pulse width. Further
simulated results indicate that the dual-band MSA can absorb more than 70% of pulse wave with an input power of -5 dBm at a wide incident angle of 0°~60° for both TE and TM mode. The effects of resistance
capacitance on the absorptance of the nonlinear circuit MSA for the incident pulse and continuous wave are also studied. The proposed dual-band waveform selective MSA shows a potential prospect in the fields of wireless communication and anti-electromagnetic interference.
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references
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