Table 6 Performance comparison of proposed MTM with other states of the art based on number of resonances, covering band, EMR, and applications.

From: Inductively tuned modified split ring resonator based quad band epsilon negative (ENG) with near zero index (NZI) metamaterial for multiband antenna performance enhancement

Ref

Year

Electrical dimension (λ × λ)

No. of resonances

Covering bands

EMR

Applications

47

2020

0.076λ × 0.076λ

4

C, S and X-bands

13.6

Microwave (proposed)

21

2020

0.116λ × 0.116λ

2

X and S-bands

8.4

Microwave (proposed)

22

2019

0.125λ × 0.125λ

1

C-band

8

Microwave (proposed)

30

2020

0.124λ × 0.1244λ

3

C, X and Ku-bands

8.03

Satellite communications (proposed)

27

2019

0.256λ × 0.256λ

1

S-band

3.95

Glucose sensing

24

2020

0.373λ × 0.825λ

1

X-band

1.2

Liquid chemical detection

20

2020

0.05λ × 0.085λ

1

C-band

11.75

Improve antenna gain

48

2020

0.35λ × 0.35λ

2

K-band

2.86

Bandwidth improvement of MIMO antenna

Proposed

2020

0.063λ × 0.063λ

6

S, C, X, and Ku-bands

15.75

Gain enhancement of the multiband antenna