Research Article
Combined Open-Slot and Monopole 8 × 8 High-Isolation Broadband MIMO Antenna System for Sub-6 GHz Terminals
Table 1
Comparison of the proposed antennas with other works for 5G smartphones.
| | Ref. | Size (mm × mm) | Bandwidth (GHz) | Efficiency | ECC | Isolation (dB) | Numbers |
| | [11] | 3 × 15 | 2.4–3.6 | 40%–60% | <0.15 | >13 | 8 × 8 | | [12] | 5.77 × 18 | 3.1–3.6/4.4–6.1 | 50%–75% | <0.1 | >18.5 | 8 × 8 | | [13] | 4 × 8 | 3.4–3.6/5.1–5.7 | 58%–74% | <0.02 | >14 | 8 × 8 | | [14] | 3 × 14 | 3.34–3.7/4.67–5.08 | 55%–72% | <0.08 | >12 | 8 × 8 | | [15] | 4.2 × 9 | 3.38–3.82/4.75–5.13 | 60%–75% | <0.008 | >14.5 | 8 × 8 | | [23] | 14.5 × 12 | 3.21–3.81 | 90%–95% | <0.02 | >10 | 4 × 4 | | [24] | 12.5 × 18.5 | 3.4–3.6 | 42%–65% | <0.2 | >12 | 8 × 8 | | [25] | 2.5 × 18 | 3.1–3.9/5.5–6.3 | 70%–80% | <0.035 | >12 | 8 × 8 | | [43] | 9.5 × 3 | 3.4–3.6 | 62%–84% | <0.1 | >14.8 | 8 × 8 | | [44] | 3 × 19.3 | 3.4–3.8/5.15–5.925 | 83%–93% | <0.06 | >20 | 10 × 10 | | [45] | 10 × 3.5 | 3.3–3.8 | 87%–93% | <0.01 | >16 | 18 × 18 | | This work | 5.6 × 5/12.7 × 6.1 | 3.28–5.05 | 45%–82% | <0.01 | >14.5 | 8 × 8 |
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