| Refs | Class | Freq (GHz) | Gain (dB) | Pout (dBm) | PAE (%) |
| [1] | F | 3.1 | 15 | 40 | 82 |
| [2] | F−1 | 3.37 | 14 | 39 | 76.9 |
| [3] | F | 2 | 12.7 | 40.7 | 70 |
| [4] | EF | 2.2 | 9.2 | 39.5 | 80 |
| This work | F | 2.5 | 14 | 40 | 50 |