Rui Xing, Yongzhi Cheng, Hui Luo, Fu Chen, Xiangcheng Li. Pseudo-Waveform-Selective Metasurface Absorber Based on Linear Circuits[J]. Laser & Optoelectronics Progress, 2024, 61(17): 1723002
- Laser & Optoelectronics Progress
- Vol. 61, Issue 17, 1723002 (2024)
Fig. 1. PWSMA. (a) Array structure; (b) unit-cell structure; (c) circuit simulation configuration
Fig. 2. Electromagnetic model and equivalent circuit model. (a) Equivalent circuit model; (b) comparison of absorptance between electromagnetic model and equivalent circuit model
Fig. 3. Normalized energy spectra of pulse cosine waves at different pulse widths, and the resonance frequency is set to 3.3 GHz
Fig. 4. Circuit configuration of PWSMA unit-cell and absorptance comparison. (a) Circuit configuration; (b) comparison of absorptance between comparison of continuous wave and short pulse (0.5 ns)
Fig. 5. Absorptance of the incident signal. (a)Absorptance of the incident signal at different pulse widths; (b) absorptance and corresponding Rozanov limit of the incident signal at different pulse widths with a resistance of 377 Ω and a resonant frequency of 3.3 GHz
Fig. 6. Continuous wave absorptance at a resistance of 377 Ω. (a) Continuous wave absorptance and Rozanov limit; (b) continuous wave absorptance under different resistance values
Fig. 7. Absorptance of PWSMA loaded with different resistance values at resonant frequency of 3.3 GHz under different incident pulse width signals
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