Research Article
Backfire Patch Antenna with Enhanced Gain and Low Side-Lobe Level under Triple-Mode Resonance
Table 2
Planar Yagi-Uda antennas for comparisons (N.A.: not available).
| | Reference | Impedance bandwidth (%) | Backfire/endfire gain (dBi) | Side-lobe level (dB) | Front-to-back ratio (dB) | Element number | Substrate |
| | [14] | 11.0 | 11.4 | -9.6 | 23.0 | 6 | | | [16] | 8.0 | 8.9 | -16.5 | N.A. | 4 | | | [19] | 17.6 | 3.0 | -10.0 | 22.0 | 3 | | | [21] | N.A. | 11.7 | -10.0 | 17.7 | 6 | | | [23] | 26.2 | -0.5 | N.A. | 10.0 | 1 | Air | | [24] | 98.0 | 10.1 | -3.0 | 12.0 | 8 | Air | | [25] | 27.6 | 3.9 | -6.0 | 12.5 | 3 | Air | | [30] | 13.1 | 6.0 | N.A. | 26.0 | 4 | | | [34] | 23.3 | 4.0 | N.A. | 8.0 | 1 | Air | | [35] | 25.0 | 6.1 | -9.0 | 6.0 | 3 | | | [36] | 4.2 | N.A. | N.A. | N.A. | 5 | | | This work | 43.6 | 7.3 | -16.4 | 15.1 | 2 | Air |
|
|
