RF Components Using Nanoparticles
Shaimaa Ali Mohammed Beeh Mohassieb;
Abstract
ABSTRACT
Inkjet printing is a low-cost technique suitable to fabricate flexible electronic devices using
solutions of conductive nanoparticles on a large variety of substrates without material waste
as in conventional etching techniques. In this dissertation, low-profile wideband coplanar
waveguide-fed monopole antennas operating at 20 GHz are designed and printed using
Copper Oxide and Silver nanoparticles inks on flexible substrates. Polyethylene
Terephthalate and Epson paper were the chosen flexible substrates. The effects of altering
the drop spacing of the ink on the conductivity of the printed films as well as on the antenna
parameters were fully investigated by numerical simulations and by measurements. A
conductivity of 2.8×10
was found for the Copper Oxide nanoparticles films printed
on Polyethylene Terephthalate using a drop spacing of 20 µm leading to superior antenna
performance with an achieved gain and efficiency of 1.82 dB and 97.6%, respectively. On
the other hand, antennas on Epson paper substrate show a -10 dB return loss, bandwidth
which extends from 17.9 GHz up to 23.3 GHz, leading to a fractional bandwidth of 26.0%.
7
−1
−1
Ω
m
Thin films printed using Silver nanoparticles on Polyethylene Terephthalate substrate have
shown a conductivity of 1.8×10
using a drop spacing of 30 µm. The
corresponding coplanar waveguide feed monopole antennas achieved a gain and efficiency
of 1.67 dB and 96%, respectively. In addition, the size reduction reached 99% relative to bulk
material. Experiments showed that smaller drop spacings lead to bulging of the printed lines
while the antenna performance decreases for longer ones. At the same drop spacing, antennas
printed on Epson paper substrate showed a -10 dB return loss bandwidth which extends from
17.18 GHz up to 24.3 GHz, leading to a fractional bandwidth of 34.34 %.
7
−1
−1
Ω
m
Inkjet printing is a low-cost technique suitable to fabricate flexible electronic devices using
solutions of conductive nanoparticles on a large variety of substrates without material waste
as in conventional etching techniques. In this dissertation, low-profile wideband coplanar
waveguide-fed monopole antennas operating at 20 GHz are designed and printed using
Copper Oxide and Silver nanoparticles inks on flexible substrates. Polyethylene
Terephthalate and Epson paper were the chosen flexible substrates. The effects of altering
the drop spacing of the ink on the conductivity of the printed films as well as on the antenna
parameters were fully investigated by numerical simulations and by measurements. A
conductivity of 2.8×10
was found for the Copper Oxide nanoparticles films printed
on Polyethylene Terephthalate using a drop spacing of 20 µm leading to superior antenna
performance with an achieved gain and efficiency of 1.82 dB and 97.6%, respectively. On
the other hand, antennas on Epson paper substrate show a -10 dB return loss, bandwidth
which extends from 17.9 GHz up to 23.3 GHz, leading to a fractional bandwidth of 26.0%.
7
−1
−1
Ω
m
Thin films printed using Silver nanoparticles on Polyethylene Terephthalate substrate have
shown a conductivity of 1.8×10
using a drop spacing of 30 µm. The
corresponding coplanar waveguide feed monopole antennas achieved a gain and efficiency
of 1.67 dB and 96%, respectively. In addition, the size reduction reached 99% relative to bulk
material. Experiments showed that smaller drop spacings lead to bulging of the printed lines
while the antenna performance decreases for longer ones. At the same drop spacing, antennas
printed on Epson paper substrate showed a -10 dB return loss bandwidth which extends from
17.18 GHz up to 24.3 GHz, leading to a fractional bandwidth of 34.34 %.
7
−1
−1
Ω
m
Other data
| Title | RF Components Using Nanoparticles | Authors | Shaimaa Ali Mohammed Beeh Mohassieb | Issue Date | 2017 |
Recommend this item
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.