Table 2 Frequency range (FR) and % of impedance bandwidth (BW) in various steps of the proposed MIMO.

From: Machine learning driven design and optimization of a compact dual Port CPW fed UWB MIMO antenna for wireless communication

Step

Band

\(\:{\varvec{S}}_{11}\) (dB)

Frequency Range

(GHz)

Bandwidth

(BW)

(GHz)

% of Impedance BW

BW ratio

Step-1

Single

−28.61

3.73–4.93

1.2

1.32:1

1.32:1

Step-2

Dual

−20.34

−26.05

8.56–10.3

8.96–11.43

0.4

1.13

1.04:1

1.11:1

1.04:1

1.11:1

Step-3

Single

−33.3

8.33–8.96

0.63

1.07:1

1.07:1

Step-4

Dual

−18.57

−13.45

8–8.96

11.03–11.76

0.96

0.73

1.12:1

1.07:1

1.12:1

1.07:1

Step-5

Dual

−21.50

−12.96

8.13–8.83

11.03–11.66

0.7

0.63

1.09:1

1.06:1

1.09:1

1.06:1

Step-6

UWB

−23.08

−29.50

−20.70

−20.34

3.1–11.76

8.66

3.79:1

3.79:1

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