Screen-Printed Flexible Bandstop Filter on Polyethylene Terephthalate Substrate Based on Ag Nanoparticles

Table 1

Performance of the different measurements taken at various bending angles of the substrate.

SN	Angle (°)	Resonance frequency (GHz)						Mean ± RSD ()	RSD (%)
		1st test	2nd test	3rd test	4th test	5th test	Mean
1	0	4.35	4.35	4.35	4.34	4.35	4.34	4.34 ± 0.10%	0.10
2	10	4.31	4.32	4.33	4.33	4.32	4.32	4.32 ± 0.19%	0.19
3	20	4.34	4.35	4.33	4.34	4.32	4.34	4.34 ± 0.26%	0.26

SN denotes serial number.
Angle denotes the absolute value of the downward bending angle of the substrate.
Mean denotes the average of the five experiments.
denotes the final average resonance frequency.
RSD denotes the relative standard deviation.