Table 2 Comparison of the proposed harvester E-HE with other published work.

From: Design and development of a compact, wide-angle metamaterial electromagnetic energy harvester with multiband functionality and polarization-insensitive features

References

Dimension of the unit cell

Substrate

used

Frequency

(GHz)

Measured energy

harvesting

efficiency η (%)

Cost

Complexity

14

0.32 λ0

FR4

3.06,3.9, and 5.97

94.4 and 84

High

Simple

17

0.13 λ0

F4B

2.5

90

Medium

Simple

27

0.08 λ0

Rogers

RT/duroid 6006

2.45 and 6

90 and 85

Medium

Medium

28

0.123 λ0

Rogers TMM10

2.45

96.5

Medium

Simple

29

0.22 λ0

Rogers RO4350B

5.54

91

Medium

Simple

30

0.13 λ0

Rogers

3210

2.4, and 5.8

58 and 51

Medium

Medium

31

0.3 λ0

Rogers RO4350

5.8

93.1

High

Complex

32

0.56 λ0

RT/duroid 5880 Rogers

2.4

70

High

Simple

33

0.32 λ0

None

5.8

88

Medium

Complex

34

0.6 λ0

Rogers RO4003C

2.45

61

Medium

Simple

35

0.15 λ0

Rogers 4003C

2.66, 5.40, 6.298

None

Medium

Medium

36

0.16 λ0

PTFE

2.45

97.3

High

Medium

37

0.13 λ0

Rogers RO3010

5.33

86

Low

Complex

38

0.11 λ0

Rogers RO4003C

5.5 and 7.2

None

Low

Medium

This work

0.12 λ0

Rogers RT 5880

3.7, 6.3, 9.9, and 14.2

95.3, 96.5, 95, and 95.2

Low

Simple