Table 1. Symmetrical split-ring resonator (SSRR) with spurline design specifications.

Parameter	Design Value
Substrate: Roger RT/Duriod 5880	ε = 2.2
f	2.2 GHz
Zo	50 Ω
Lg	71.84 mm
Wg	68.3 mm
h	0.787 mm
r	15.85 mm
t	0.0175 mm
w	2.5 mm
l	34.0 mm
g	0.37 mm
a	12.76 mm