Table 3 Comparative analysis of the proposed dual-band BLC with other related works.
Ref./date | Frequency \(f_1\)/\(f_2\) (GHz) | Ratio (K) | Substrate /\(\varepsilon _r\) /h | Size (\(\lambda _g\)) | \(S_{11}\) (dB) | \(S_{21}\) (dB) | \(S_{31}\) (dB) | \(S_{41}\) (dB) |
|---|---|---|---|---|---|---|---|---|
23/2019 | 2.45/5.08 | 2.42 | FR-4/4.4/1.6 | 0.29\(\times\)0.3 | − 25.8/− 30.5 | – 4.19/− 4.43 | − 4.31/− 4.72 | − 21.5/− 17.69 |
24/2020 | 2.4/5.2 | 2.2 | FR-4/-/- | – | \(<\) \(-\)15/−15 | – | – | – |
25/2021 | 0.9/1.8 | 2 | RO4003C/3.55/1.6 | 0.7\(\times\)0.35 | \(<\) \(-\)10 | – | – | – |
26/2022 | 0.9/2.45 | 2.72 | Rogers TMM/4.5/1.6 | 0.63\(\times\)0.29 | \(<\) \(-\)20 | − 3.66/− 3.72 | − 3.42/− 3.53 | \(<\) \(-\)20 |
27/2022 | 1/2.5 | 2.5 | Taconic TLY-5/2.2/1.56 | 0.34\(\times\)0.32 | \(<\) \(-\)15 | − 2.9/− 2.8 | − 3.0/− 3.5 | < − 20 |
28/2023 | 0.9/2.0 | 2.22 | Teflon/2.54/1.56 | 0.79\(\times\)0.1 | − 26.8/− 35.6 | − 3.5/− 3.4 | − 3.1/− 3.3 | − 23.4/− 27.7 |
29/2024 | 0.52/2.03 | 3.9 | – | 7.15\(\times\)5.15 | − 26/− 24 | − 3.95/− 6.33 | − 3.93/− 2.35 | − 25/− 23 |
30/2024 | 1.2/2.5 | 2.08 | RO4003/3.5/0.51 | – | − 26/− 25 | − 3.15/− 3.33 | − 3.13/− 3.35 | − 25/− 23 |
This work | 0.7/3.5 | 5 | Rogers RT5880/2.2/0.787 | 0.17\(\times\)0.16 | − 25/− 22 | − 3.4/− 3.9 | − 3.5/− 2.88 | − 20/− 19.7 |
