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

Table 1

Parameters of PCBs used in chipless tags. The of most commercial PCBs are lower than 0.002, while it is much higher for flexible materials such as papers, plastics, or common fabrics.

Ref.	Substrate	Material			Thickness (mm)	Frequency (GHz)
[9]	PCB	Taconic TLX-0	2.45	0.0019	0.787	2.0-2.5
		Taconic TF-290	2.90	0.0020	0.090	2.0-2.5
[10]		Taconic TLX-8	2.55	0.0019	0.127	6.0-12.0
[11]		ARLON AD-450	4.50	0.0020	1.580	1.9-2.2
[12]		F4BM	2.20	0.0007	1.000	2.0-10.0
[12]	Paper	Paper	2.25	0.0450	1.000	2.0-10.0
[12]	Plastic	PET	3.40	0.0700	1.000	2.0-10.0
[14]	Fabric	Nylon	2.40	0.0500	0.172	1.5-3.0
[15]		Cotton	2.10	0.0700	0.250	2.0
[15]		Fleece	1.35	0.0250	1.000	2.5-6.5