Influence of Dielectric Loss on RF Performance of Microstrip Multi-Resonant Circuits

Table 4

The key parameters of the above three kinds of substrates. The values of are larger than the one order of magnitude from each other.

Types	Parameter	(a)	(b)	(c)
Substrate	Materials	ARLON AD-450	FR-4	Denim fabric
	Dielectric constant ()	4.50	5.20	2.16
	Loss tangent ()	0.002	0.015	0.114
	Thickness (mm)	1.58	1.50	0.56
Conductor	Materials	Copper	Copper	Copper
	Thickness (mm)	0.035	0.018	0.018