Printed Inductive Coil Realized using Inkjet Printing on Flexible Substrate for RFID Technology Applications

Author(s):

Rinin Parambil Ramachandran , Faculty of Engineering,Albstadt-Sigmaringen University; Lutz Sommer, Faculty of Engineering,Albstadt-Sigmaringen University

Keywords:

Inductance, Low-cost printer, printed inductive coil, Printed electronics, Series resistance

Abstract:

This paper details the option of fabricating a printed inductive coil using low-cost inkjet printing technology for the application in the area of RFID (radio frequency identification). The printed inductive coil is made out of conductive ink which is printable on a flexible Polyethylene terephthalate (PET) substrate. The printed inductive coil is produced from off-the-shelf desktop printer and conductive silver ink enabling the low production cost related to this product. Various design patterns including the number of turns, spacing and width are tested to find an optimal solution for fabricating a printed inductive coil comparable to the conventional copper based coils. The inductance, series resistance and the quality are measured using an I-V method for the printed inductive coil. In summary a low sensitive printed inductive coil with an effective average inductance of 746 nH (Nano henry) and average series resistance of 32 Ohm is being fabricated using this method. The result also indicates having a low quality factor (Q factor) less than 8 and higher series resistance associated indicating the room for improvement in fabrication process.

Other Details:

Manuscript Id	:	IJSTEV4I9017
Published in	:	Volume : 4, Issue : 9
Publication Date	:	01/04/2018
Page(s)	:	29-33

Download Article