Table 3.

Dielectric properties of commonly used substrates.

Substrates	ε	tanδ	Ref. #
Kodak Photo Paper	2.85	0.05	[29]
PDMS	2.8	0.05	[30]
Kapton film	3	0.04	[31]
Cotton	1.6	0.04	[32]
Polyester	1.9	0.0045	[32]