Table 1 The comparison between the proposed MIMO structure with other designs.
From: High isolation quad ports MIMO antenna loaded with FSS for 5G communication
Ref | Size mm2 | εr/h(mm) | Fo (GHz) /BW (GHz) | Max Gain (dBi)/ improving method | Isolation (dB) | ECC/ DG (dB) | CCL | Ports | |
|---|---|---|---|---|---|---|---|---|---|
32 × 20 | 2.2/0.508 | 28/4.9 | 5.6 | ≥ 30 | 0.001/9.99 | < 0.4 | 2 | ||
12.4 × 12.4 | 2.2/0.508 | 28/4.5 | 6.27 | ≥ 22 | 0.05/9.99 | 0.2 | 4 | ||
24.1 × 7 | 2.92/1.027 | 26–28/6.3 | 7.1/array | - | - | - | 1 | ||
32 × 32 | 2.2/0.787 | 28/1.5 | 10.6/array | ≥ 30 | < 0.001/ >9.99 | - | 4 | ||
31.2 × 31.2 | 2.2/1.57 | 25.4/5.68 | 6.4/ EBG | ≥ 15 | 0.03/- | - | 8 | ||
36.2 × 36.2 | 3.55/5 | 38/3 | 8.2/FSS | ≥ 25 | < 0.005/ >9.99 | < 0.4 | 4 | ||
24 × 24 | 2.2/6.3 | 28/4.16 | 8.3–11.4/PSR | ≥ 30 | < 0.004/9.99 | < 0.4 | 4 | ||
11 × 20.5 | 2.2/0.254 | 29/10 | 5.9 | ≥ 25 | < 0.036/9.99 | < 0.4 | 2 | ||
10 × 28 | 2.2/0.78 | 26.8/0.6–39.8/1.54 | 7.27–7.45 | ≥ 30 | < 0.03/ 9.99 | < 0.35 | 2 | ||
12 × 11.6 | 2.2/0.508 | 27.1/ 1.9 -48.7/2.8 | 6 | ≥ 27 | < 10− 6 /9.99 | < 0.3 | 4 | ||
15 × 15 | 2.2/0.8 | 39.5/1.7 | 5.98 | 20 | < 0.001 | 0.37 | 4 | ||
17.76 × 17.76 | 2.2/1.52 | 28/0.65 -38/0.46 | 8.9 | > 68 | < 0.003/10 | - | 4 | ||
This work | Wo FSS | 25.7 × 25.7 | 3.38/0.203 | 28/6 | 6.05 | ≥ 22 | < 0.002/9.99 | < 0.2 | 4 |
With FSS | 37.8 × 37.8 | 3.38/5.2 | 28/5 | 8/ FSS | ≥ 22 | < 0.002/9.99 | < 0.2 | 4 | |
