Table 2 S11 for different design steps.
From: A high-performance ultra-compact plasmonic metamaterial structure for optical THz absorption
Designs | Design 1 | Design 2 | Design 3 | Design 4 | Design 5 (Proposed design) | Design 6 |
|---|---|---|---|---|---|---|
Frequency range for S11 < -10 dB (THz) | 320–680 | 290–780 | 260–910 | 220–1190 | 180–1500 | 150–1500 |
Minimum value of S11 (dB) | -11.26 | -12.4 | -14.79 | -20.57 | -37.4 | -22.62 |
Bandwidth of operation (THz) | 360 | 490 | 650 | 970 | 1320 | 1350 |
Resonant frequency (THz) | 490 | 510 | 530 | 570 | 670 | 840 |
