Printed Wide-Slot Antenna Design with Bandwidth and Gain Enhancement on Low-Cost Substrate

Table 2

Dielectric properties of substrate materials.

Substrate material	Relative permittivity (𝜖𝑟)	Dielectric loss tangent	Fraction achieved bandwidth (%)	Antenna dimension
Glass microfiber reinforced PTFE	2.33	0.0012	40.44369	As Table 1 parameter
Epoxy resin-fibre glass	4.60	0.02	85.71429
PTFE ceramic	10.20	0.0023	21.63934
Teflon	2.10	0.01	36.61017