Research Article
Miniature Dual-Band Substrate Integrated Waveguide Slotted Antenna Array for Millimeter-Wave 5G Applications
Table 1
Comparison of dual-band SIW antenna arrays (28/38 GHz).
| No. | Number of cavities | Antenna footprint (mm2) | Multiple layers? | Impedance bandwidths (GHz) |
| [11] | 2 × 2 | 105.0 × 83.7 | Yes | 24.2–27.8, 36.9–42.8 | [12] | 2 × 2 | 32.0 × 40.2 | Yes | 26.3–32.3, 37.4–38.4 | [13] | 1 × 4 | 27.5 × 28.5 | Yes | 26.7–30.4, 36.6–38.8 | [14] | 1 × 4 | 40.0 × 27.5 | No | 28.0–28.3, 37.3–39.1 | This study | 1 × 4 | 28.7 × 30.8 | No | 26.6–28.3, 36.8–38.9 |
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