Table 1 Various dimensions of the different segments and split gap of the proposed unit cell.

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

Parameter

Dimension (mm)

Parameter

Dimension (mm)

Parameter

Dimension (mm)

Parameter

Dimension (mm)

a

8.0

b

7.8

c

6.0

d

4.0

e

0.55

f

0.35

g

0.8

h

0.4

i

0.8

j

0.8

k

0.35

l

1.0

d1, d2

0.2, 0.2

d3, d4

0.2, 0.2

r

0.8

R

1.2