Table 1 Comparison table with state of the art literature

From: Multi-band ultrathin reflective metasurface for linear and circular polarization conversion in Ku, K, and Ka bands

Ref

Band

LP

PCR

AS

LHCP

FB in LHCP

RHCP

FB in RHCP

Length (mm)

Thick (mm)

[14]

Ku

15.5-16.5

≥85%

≤60o

17.4–18.35

5.31%

12.88–13.57

5.21%

6 =  0.280λo

2 = 0.093λo

[15]

Ku

12.05-17.9

≥80%

≤45o

11.3–11.5

1.7%

-

-

6.6 =  0.308λo

1.2 =  0.056λo

[16]

X, Ku

8.32-17.55

≥93%

≤45o

7.42–7.68

3.44%

-

-

7.8 =  0.32λo

2.57 =  0.10λo

[17]

C, X, Ku

6.46-6.78 10.52-11.85 16.49-17.37

≥90%

≤45o

7.28–9.40

25.4%

13.38–15.19

12.6%

8 =  0.30λo

1.60 =  0.061λo

[18]

C, X, Ku

4.3, 7.2,12.3 15.15

≥90%

≤15o

4.75–5.95 14.35-14.6

22.4%1.7%

8.35–8.8

5.2%

11 =  0.333λo

3.2 =  0.098λo

[19]

C, X, Ku

7.2-10.51 15.81-17.48

≥90%

≤30o

12.54–13.76

9.2%

6.78–6.89 18.39-18.82

1.6% 2.3%

7 =  0.291λo

2.4 = 0.1λo

[20]

Ku, K

-

-

≤45o ≤ 30o

15.25–18.9

21.37%

29.7–36.7

21.08%

5.20 =  0.45λo

0.3 = 0.26λo

[21]

X, Ku, K

12.35-17.8

≥80%

≤50o

10.85–11.05 21.85-27.40

1.82% 22.53%

12.35–17.8

36.15%

5.94 =  0.35λo

1.6 =  0.096λo

[22]

Ku, K, Ka

-

-

≤45o

15–21.2

34.3%

27–30.3

11.5%

2.8 =  0.23λo

1.032 =  0.169λo

[23]

K, Ka

-

-

≤45o

19.7–20.2

2.50%

27–30.3

1.68%

5.3 =  0.44λo

1.05 =  0.08λo

[24]

C,X,Ku

-

-

≤30o

10.3–14.73

35.39%

8.34–8.71

4.34%

11 =  0.45λo

1.6 = 0.06λo

This work

Ku, K, Ka

15.97–16.85 24.70–26.65 34.37-35.45

95%

45°

14.57–15.65 27.47–33.85

7.14% 20.8% (27.94%)

17.27–23.92 35.87–38.32

32.3% 6.60% (38.90%)

2 =  0.17λo

0.64=0.05λo

  1. The length (mm) is the length of metasurface in relation to λ. The thick (mm) is the thickness of metasurface in relation to λ = c/f, and f = 26 GHz.