RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films

Jingchen Wang; Sang Lam; Eng Gee Lim

doi:10.1109/IMWS-AMP.2015.7324924

RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films

Jingchen Wang, Sang Lam, Eng Gee Lim

Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review

6 Citations (Scopus)

Abstract

This paper reports an exploratory study of implementing microstrip lines in flexible electronics technology by printing conductive tracks on flexible polyethylene terephthalate (PET) films. Based on the material properties of inkjet printable nanoparticles and of PET films published in the literature, electromagnetic-field simulations with COMSOL are used to determine the radio-frequency (RF) performance of the microstrip lines. With a PET film thickness of 250 μm, a conductive track with a linewidth of 565 μm and a conductive layer thickness of 20 μm above a ground plane gives a characteristic impedance of 50 Ω as a microstrip line. Because of the large thickness of the conductive layer relative to the skin depth, the insertion loss at 1 GHz for such microstrip lines can be as small as 0.25 dB/cm even with the conductivity as low as 5×10⁵ S/m. With the 50-Ω microstrip line design, the characteristic impedance is fairly independent of the conductivity of the printed conductor. Printing resolution of about 100 μm is good enough for printing microstrip lines on PET films of normal thickness.

Original language	English
Title of host publication	2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479964505
DOIs	https://doi.org/10.1109/IMWS-AMP.2015.7324924
Publication status	Published - 10 Nov 2015
Event	IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Suzhou, China Duration: 1 Jul 2015 → 3 Jul 2015

Publication series

Name	2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings

Conference

Conference	IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015
Country/Territory	China
City	Suzhou
Period	1/07/15 → 3/07/15

Keywords

inkjet printing
microstrip line
polyethylene terephthalate (PET)
printed electronics
radio-frequency

Access to Document

10.1109/IMWS-AMP.2015.7324924

Cite this

Wang, J., Lam, S., & Lim, E. G. (2015). RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films. In 2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings Article 7324924 (2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IMWS-AMP.2015.7324924

Wang, Jingchen ; Lam, Sang ; Lim, Eng Gee. / RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films. 2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. (2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings).

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title = "RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films",

abstract = "This paper reports an exploratory study of implementing microstrip lines in flexible electronics technology by printing conductive tracks on flexible polyethylene terephthalate (PET) films. Based on the material properties of inkjet printable nanoparticles and of PET films published in the literature, electromagnetic-field simulations with COMSOL are used to determine the radio-frequency (RF) performance of the microstrip lines. With a PET film thickness of 250 μm, a conductive track with a linewidth of 565 μm and a conductive layer thickness of 20 μm above a ground plane gives a characteristic impedance of 50 Ω as a microstrip line. Because of the large thickness of the conductive layer relative to the skin depth, the insertion loss at 1 GHz for such microstrip lines can be as small as 0.25 dB/cm even with the conductivity as low as 5×105 S/m. With the 50-Ω microstrip line design, the characteristic impedance is fairly independent of the conductivity of the printed conductor. Printing resolution of about 100 μm is good enough for printing microstrip lines on PET films of normal thickness.",

keywords = "inkjet printing, microstrip line, polyethylene terephthalate (PET), printed electronics, radio-frequency",

author = "Jingchen Wang and Sang Lam and Lim, {Eng Gee}",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 ; Conference date: 01-07-2015 Through 03-07-2015",

year = "2015",

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doi = "10.1109/IMWS-AMP.2015.7324924",

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Wang, J , Lam, S & Lim, EG 2015, RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films. in 2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings., 7324924, 2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings, Institute of Electrical and Electronics Engineers Inc., IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015, Suzhou, China, 1/07/15. https://doi.org/10.1109/IMWS-AMP.2015.7324924

RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films. / Wang, Jingchen ; Lam, Sang ; Lim, Eng Gee.
2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. 7324924 (2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings).

Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review

TY - GEN

T1 - RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films

AU - Wang, Jingchen

AU - Lam, Sang

AU - Lim, Eng Gee

PY - 2015/11/10

Y1 - 2015/11/10

N2 - This paper reports an exploratory study of implementing microstrip lines in flexible electronics technology by printing conductive tracks on flexible polyethylene terephthalate (PET) films. Based on the material properties of inkjet printable nanoparticles and of PET films published in the literature, electromagnetic-field simulations with COMSOL are used to determine the radio-frequency (RF) performance of the microstrip lines. With a PET film thickness of 250 μm, a conductive track with a linewidth of 565 μm and a conductive layer thickness of 20 μm above a ground plane gives a characteristic impedance of 50 Ω as a microstrip line. Because of the large thickness of the conductive layer relative to the skin depth, the insertion loss at 1 GHz for such microstrip lines can be as small as 0.25 dB/cm even with the conductivity as low as 5×105 S/m. With the 50-Ω microstrip line design, the characteristic impedance is fairly independent of the conductivity of the printed conductor. Printing resolution of about 100 μm is good enough for printing microstrip lines on PET films of normal thickness.

AB - This paper reports an exploratory study of implementing microstrip lines in flexible electronics technology by printing conductive tracks on flexible polyethylene terephthalate (PET) films. Based on the material properties of inkjet printable nanoparticles and of PET films published in the literature, electromagnetic-field simulations with COMSOL are used to determine the radio-frequency (RF) performance of the microstrip lines. With a PET film thickness of 250 μm, a conductive track with a linewidth of 565 μm and a conductive layer thickness of 20 μm above a ground plane gives a characteristic impedance of 50 Ω as a microstrip line. Because of the large thickness of the conductive layer relative to the skin depth, the insertion loss at 1 GHz for such microstrip lines can be as small as 0.25 dB/cm even with the conductivity as low as 5×105 S/m. With the 50-Ω microstrip line design, the characteristic impedance is fairly independent of the conductivity of the printed conductor. Printing resolution of about 100 μm is good enough for printing microstrip lines on PET films of normal thickness.

KW - inkjet printing

KW - microstrip line

KW - polyethylene terephthalate (PET)

KW - printed electronics

KW - radio-frequency

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M3 - Conference Proceeding

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BT - 2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015

Y2 - 1 July 2015 through 3 July 2015

ER -

Wang J , Lam S , Lim EG. RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films. In 2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2015. 7324924. (2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings). doi: 10.1109/IMWS-AMP.2015.7324924

RF performance evaluation of microstrip lines printed on flexible polyethylene terephthalate (PET) films

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