Abstract
| Original language | English |
|---|---|
| Article number | 7882657 |
| Pages (from-to) | 1883-1886 |
| Number of pages | 4 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Volume | 16 |
| DOIs | |
| Publication status | Published - 1 Jan 2017 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- antenna
- graphene
- printing
- radio frequency (RF)
- transmission line
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Graphene-Flakes Printed Wideband Elliptical Dipole Antenna for Low-Cost Wireless Communications Applications. / Lamminen, Antti; Arapov, Kirill; de With, Gijsbertus; Haque, Samiul; Sandberg, Henrik; Friedrich, Heiner; Ermolov, Vladimir.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 16, 7882657, 01.01.2017, p. 1883-1886.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Graphene-Flakes Printed Wideband Elliptical Dipole Antenna for Low-Cost Wireless Communications Applications
AU - Lamminen, Antti
AU - Arapov, Kirill
AU - de With, Gijsbertus
AU - Haque, Samiul
AU - Sandberg, Henrik
AU - Friedrich, Heiner
AU - Ermolov, Vladimir
PY - 2017/1/1
Y1 - 2017/1/1
N2 - This letter presents the design, manufacturing, and operational performance of a graphene-flakes-based screen-printed wideband elliptical dipole antenna operating from 2 up to 5 GHz for low-cost wireless communications applications. To investigate radio frequency (RF) conductivity of the printed graphene, a coplanar waveguide (CPW) test structure was designed, fabricated, and tested in the frequency range from 1 to 20 GHz. Antenna and CPW were screen-printed on Kapton substrates using a graphene paste formulated with a graphene-to-binder ratio of 1:2. A combination of thermal treatment and subsequent compression rolling is utilized to further decrease the sheet resistance for printed graphene structures, ultimately reaching 4 ?/? at 10-?m thicknesses. For the graphene-flakes printed antenna, an antenna efficiency of 60% is obtained. The measured maximum antenna gain is 2.3 dBi at 4.8 GHz. Thus, the graphene-flakes printed antenna adds a total loss of only 3.1 dB to an RF link when compared to the same structure screen-printed for reference with a commercial silver ink. This shows that the electrical performance of screen-printed graphene flakes, which also does not degrade after repeated bending, is suitable for realizing low-cost wearable RF wireless communication devices.
AB - This letter presents the design, manufacturing, and operational performance of a graphene-flakes-based screen-printed wideband elliptical dipole antenna operating from 2 up to 5 GHz for low-cost wireless communications applications. To investigate radio frequency (RF) conductivity of the printed graphene, a coplanar waveguide (CPW) test structure was designed, fabricated, and tested in the frequency range from 1 to 20 GHz. Antenna and CPW were screen-printed on Kapton substrates using a graphene paste formulated with a graphene-to-binder ratio of 1:2. A combination of thermal treatment and subsequent compression rolling is utilized to further decrease the sheet resistance for printed graphene structures, ultimately reaching 4 ?/? at 10-?m thicknesses. For the graphene-flakes printed antenna, an antenna efficiency of 60% is obtained. The measured maximum antenna gain is 2.3 dBi at 4.8 GHz. Thus, the graphene-flakes printed antenna adds a total loss of only 3.1 dB to an RF link when compared to the same structure screen-printed for reference with a commercial silver ink. This shows that the electrical performance of screen-printed graphene flakes, which also does not degrade after repeated bending, is suitable for realizing low-cost wearable RF wireless communication devices.
KW - antenna
KW - graphene
KW - printing
KW - radio frequency (RF)
KW - transmission line
UR - http://www.scopus.com/inward/record.url?scp=85029084293&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2017.2684907
DO - 10.1109/LAWP.2017.2684907
M3 - Article
VL - 16
SP - 1883
EP - 1886
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
SN - 1536-1225
M1 - 7882657
ER -