Table 2 Summary of S21 properties for various design steps of the proposed metamaterial unit cell.
Steps | Resonance frequency (GHz) | Amplitude(dB) | Covering Band |
---|---|---|---|
Design 1 | 4.9, 11.15 | − 28.9, − 26.2 | C, X bands |
Design 2 | 5.95, 11.3, 13.8, 17.5 | − 33.5, − 25.3, − 13, − 9.7 | C, X, Ku bands |
Design 3 | 5.65, 7.2, 11.4, 13.8, 17.4 | − 29, − 24.7, − 25.5, − 12, − 9.4 | C, X, Ku bands |
Design 4 | 5.65, 7.14, 11.4, 13.8, 17.4 | − 29, − 24.4, − 25.4, − 11.7, − 9.4 | C, X, Ku bands |
Design 5 | 5.5, 6.2, 11.2, 14.4, 17.5 | − 22.5, − 30.1, − 22.9, − 13.9, − 8.4 | C, X, Ku bands |
Proposed | 2.38, 4.24, 5.98, 9.55, 12.1, 14.34 | − 19.7, − 26.0, − 21.8, − 26.1, − 12.0, − 15.7 | S, C, X, Ku bands |