Table 12 A comparison between proposed metamaterial design and previous studies.

From: Specific absorption rate reduction for sub-6 frequency range using polarization dependent metamaterial with high effective medium ratio

References

Resonance frequencies (GHz)

Band

Application

Size (mm)

Characteristic

31

0.9 and 1.8

Double

SR; 1 g: 43% and 44%

AC: 44.4 × 33.3

Double-negative

32

2.1

Single

SR; 1 g: 35.93%

AC: 187 × 117

Double-negative

35

13.58, 14.82, 16.65 and 18.44

Multi

A; 79%, 99%, 88%, and 92%

AC: 220 × 220

Double-negative

33

0.9 and 1.8

Double

SR; 1 g: 40% and 49%

AC: 54.72 × 39

Double-negative

34

0.9 and 1.8

Double

SR; 1 g: 14.23%

and 15.30%

AC: 36 × 36

Double-negative

Proposed

1.200, 1.458, 1.56, 1.896, 2.268, 2.683 2.940, 3.580 and 5.872

Triple

SR; 1 g: 97.82%, 97.71%, 98.14%, 96.72%, 94.18%, 93.34%, 94.34%, 75.49%, and 52.64%

MSM: 10 × 10

Left-handed

  1. SR SAR reduction, A absorption, AC array cell.
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