Table 1 Comparison between the proposed dual-band ABPFs and other works.
Ref | fL/fH (GHz) | IL (dB) | 3-dB FBW (%) | Reflectionless behavior | 10-dB ABW (GHz) | RC | Upper-band suppression |
|---|---|---|---|---|---|---|---|
15 | 1.43/2.6 | 0.38/0.65 | 44.3/23.2 | Two-port | 0.7–3.39 | 1.11/1.11 | NO |
16 | 2.58/3.43 | 2.9/4.1 | 6.4/4.1 | Input | 1.46–3.81 | 1.82/2.0 | NO |
17 | 3.85/4.55 | 1.8/1.8 | 9.3/8.1 | Input | 2.37–5.54 | 2.01/1.57 | NO |
18 | 2.82/3.15 | 1.90/1.70 | 5.2/5.1 | Input | 2.21–3.32 | 2.11/2.14 | NO |
19 | 1.75/2.25 | 1.69/3.90 | 9.7/6.2 | Two-port | 0.87–3.24 | 1.74/1.71 | NO |
20 | 1.30/4.10 | 0.75/2.20 | 60.5/13.3 | Two-port | All-frequency | 1.59/1.48 | NO |
21 | 0.80/3.04 | 0.70/1.35 | 55.1/11.2 | Two-port | All-frequency | 1.28/1.36 | NO |
26 | 2.43/3.76 | 1.3/3.9 | 47.5/- | NO | – | 1.54/1.59 | 40 dB > 8.6f0 |
27 | 0.79/1.24 | 0.11/0.89 | 26.54/11.3 | NO | – | 1.23/1.56 | 15 dB > 7.8f0 |
28 | 2.45/4.94 | 0.34/0.23 | 5.7/3 | NO | – | 1.33/1.22 | 40 dB > 2.4f0 |
29 | 3.78/4.82 | 1.38/1.82 | 11.3/10.7 | NO | – | 1.35/1.43 | 10 dB > 9.2f0 |
30 | 4.56/8.89 | 1.58/2.21 | 24.4/8.6 | NO | – | 1.33/4.14 | 10 dB > 2.1f0 |
Prototype I | 1.38/2.63 | 0.95/1.47 | 19.5/9.7 | Two-port | All-frequency | 1.26/1.31 | NO |
Prototype II | 1.38/2.63 | 1.02/1.72 | 18.2/9.88 | Two-port | All-frequency | 1.23/1.27 | 22.8 dB > 10f0 |
