Antennes réalisées
en impression 3D
22 MARS 2018
JM Floc’h
Sommaire
• Introduction - Généralités
• Contexte des Etudes
• Travaux de l’IETR
– Antennes large bandes
– Antennes pour capteur à 24 GHz
– Conclusion
Introduction - Généralités
• Il y a de plus en plus d’applications en impression 3D avec différents types de technologie
• Nous avons choisi des applications faible coût par addition
• La réalisation est rapide
• Les antennes obtenues sont légères et robustes
• On peut réaliser des formes complexes
Antenne large bande
• Transmission de video en temps réel
• Réseau composé de 4 antennes large bande
• adaptation des communications aux réseaux existants dans l’environnement
(3G, 4G, WiFi / WiMax, Inmarsat, RF)
• Utilisation de ces réseaux simultanémant
• aggregation à ces réseaux pour avoir le meilleur service (débit)
• Le choix du réseau se fait de façon automatique en fonction de la disponibilité, de la vitesse et de la qualité de chaque réseau
Multilink Projet
Structure de l’antenne
Structure de l’antenne
Figure 1: Proposed antenna configuration obtained from a
monopole antenna.
Figure 4: Photograph of the manufactured prototype of the
antenna.
20 cm
Figure 2: The proposed antenna.
R1
R2
R3
R2
D
0.1 cm
X
Y
(a) (b)
xsc
ysc
Figure 3: Antenna parameters to be optimized for provided
performance. (a) Global view, (b) Top view. For clarity the
ground plan was been deleted.
and two folded ellipses. To feed this antenna, a coaxial feed
line with input impedance of 50 Ohm is used.
In order to obtain the desired performance of the antenna, a
parametric study is made by optimizing geometrical
dimensions including the position of the pin to short-circuit the
antenna as show in the Fig. 3. In the table I, the value of each
parameter is given.
Parameter Optimized value
(cm)
R1 2.0500
R2 2.5625
R3 1.0250
D 7.8000
xsc 0.5600
ysc 2.5000
Table I: Optimized antenna parameters.
In the present work, we propose a modern manufacturing
process to fabricate the designed antenna. This process is based
on the recent development that knows the 3D printing
technology. So, firstly the prototype of the antenna is
fabricated on resistible plastic material namely Acrylonitrile
Butadiene Styrene (ABS) by a 3D printer and next a silver
printing metallization layer is applied on the fabricated
prototype in order to obtain a radiated element of the designed
antenna. This technique allows obtaining a very light weight
antenna.
III. XPERIMENTAL ESULTS AND ISCUSSION
To verify the performance of the designed compact and
broadband antenna presented in this paper, a prototype was
manufactured by means of 3D printer and then measured. In
the Fig. 4 can be see the photograph of the antenna prototype.
For the purpose of measurement, the antenna is connected to a
coaxial cable in the middle section of the ground plane. The
measured return loss of the antenna is presented in the Fig. 5.
As it can be see, a good agreement between measured and
simulated results can be observed. Also, it is clearly seen that a
wide operating bandwidth is obtained covering the GSM band
(900-1900 MHz), UMTS band (1900-2200 MHz) and the
highly demanded LTE band (2300-2700 MHz). The
compactness and wide bandwidth in the antenna is suitable for
many applications as mobile communications and wireless
applications.
Structure de l’antenne
Figure 1: Proposed antenna configuration obtained from a
monopole antenna.
Figure 4: Photograph of the manufactured prototype of the
antenna.
20 cm
Figure 2: The proposed antenna.
R1
R2
R3
R2
D
0.1 cm
X
Y
(a) (b)
xsc
ysc
Figure 3: Antenna parameters to be optimized for provided
performance. (a) Global view, (b) Top view. For clarity the
ground plan was been deleted.
and two folded ellipses. To feed this antenna, a coaxial feed
line with input impedance of 50 Ohm is used.
In order to obtain the desired performance of the antenna, a
parametric study is made by optimizing geometrical
dimensions including the position of the pin to short-circuit the
antenna as show in the Fig. 3. In the table I, the value of each
parameter is given.
Parameter Optimized value
(cm)
R1 2.0500
R2 2.5625
R3 1.0250
D 7.8000
xsc 0.5600
ysc 2.5000
Table I: Optimized antenna parameters.
In the present work, we propose a modern manufacturing
process to fabricate the designed antenna. This process is based
on the recent development that knows the 3D printing
technology. So, firstly the prototype of the antenna is
fabricated on resistible plastic material namely Acrylonitrile
Butadiene Styrene (ABS) by a 3D printer and next a silver
printing metallization layer is applied on the fabricated
prototype in order to obtain a radiated element of the designed
antenna. This technique allows obtaining a very light weight
antenna.
III. XPERIMENTAL ESULTS AND ISCUSSION
To verify the performance of the designed compact and
broadband antenna presented in this paper, a prototype was
manufactured by means of 3D printer and then measured. In
the Fig. 4 can be see the photograph of the antenna prototype.
For the purpose of measurement, the antenna is connected to a
coaxial cable in the middle section of the ground plane. The
measured return loss of the antenna is presented in the Fig. 5.
As it can be see, a good agreement between measured and
simulated results can be observed. Also, it is clearly seen that a
wide operating bandwidth is obtained covering the GSM band
(900-1900 MHz), UMTS band (1900-2200 MHz) and the
highly demanded LTE band (2300-2700 MHz). The
compactness and wide bandwidth in the antenna is suitable for
many applications as mobile communications and wireless
applications.
Figure 1: Proposed antenna configuration obtained from a
monopole antenna.
Figure 4: Photograph of the manufactured prototype of the
antenna.
20 cm
Figure 2: The proposed antenna.
R1
R2
R3
R2
D
0.1 cm
X
Y
(a) (b)
xsc
ysc
Figure 3: Antenna parameters to be optimized for provided
performance. (a) Global view, (b) Top view. For clarity the
ground plan was been deleted.
and two folded ellipses. To feed this antenna, a coaxial feed
line with input impedance of 50 Ohm is used.
In order to obtain the desired performance of the antenna, a
parametric study is made by optimizing geometrical
dimensions including the position of the pin to short-circuit the
antenna as show in the Fig. 3. In the table I, the value of each
parameter is given.
Parameter Optimized value
(cm)
R1 2.0500
R2 2.5625
R3 1.0250
D 7.8000
xsc 0.5600
ysc 2.5000
Table I: Optimized antenna parameters.
In the present work, we propose a modern manufacturing
process to fabricate the designed antenna. This process is based
on the recent development that knows the 3D printing
technology. So, firstly the prototype of the antenna is
fabricated on resistible plastic material namely Acrylonitrile
Butadiene Styrene (ABS) by a 3D printer and next a silver
printing metallization layer is applied on the fabricated
prototype in order to obtain a radiated element of the designed
antenna. This technique allows obtaining a very light weight
antenna.
III. XPERIMENTAL ESULTS AND ISCUSSION
To verify the performance of the designed compact and
broadband antenna presented in this paper, a prototype was
manufactured by means of 3D printer and then measured. In
the Fig. 4 can be see the photograph of the antenna prototype.
For the purpose of measurement, the antenna is connected to a
coaxial cable in the middle section of the ground plane. The
measured return loss of the antenna is presented in the Fig. 5.
As it can be see, a good agreement between measured and
simulated results can be observed. Also, it is clearly seen that a
wide operating bandwidth is obtained covering the GSM band
(900-1900 MHz), UMTS band (1900-2200 MHz) and the
highly demanded LTE band (2300-2700 MHz). The
compactness and wide bandwidth in the antenna is suitable for
many applications as mobile communications and wireless
applications.
Réalisation métallique
L’antenne est réalisée à partir de 2 feuilles de laiton
On les plie et soude ensemble
On vient ensuite souder le court circuit
Réalisation 3D
On obtient directement le fichier mécanique à partir du logiciel CST en format stp
Il faut avant épaissir à 1 mm l’épaisseur de métallisation
Réalisation en 3D
On utlise des fils d’ABS
Métallisation
Une possibilité est d’utiliser une peinture d’argent
L’antenne est avant collée sur le plan de masse
Métallisation
La métallisation est réalisée par électrolyse de cuivre
Adaptation
S11
Figure 5: Measured return loss of the manufactured antenna
compared with simulation result.
Gain, dB
(a)
Gain, dB
(b)
Gain, dB
(c)
Gain, dB
(d)
Figure 8: Simulated radiation pattern of the proposed antenna in
different frequencies. (a) at the 0.7 GHz, (b) at the 0.96 GHz, (c)
at the 2 GHz and (d) at the 2.7 GHz.
Figure 6: Measured gain of the proposed antenna.
Figure 7: Measured radiation efficiency of the proposed antenna
compared with the simulated result.
The measured value for the peak gain at the desired
frequency bands of (700�2700 MHz) is exhibited in Fig. 6. In
the other hand, the measured and simulated antenna efficiency
are also depicted in Fig. 7, featuring good agreement between
the measured and simulated results. It can be seen that the
antenna efficiency is higher than 50% in the lower band and
reaches 70% in the higher band.
The radiation patterns of the simulated and measured
antenna at different frequencies are plotted in the Fig. 8 and
Fig. 9 respectively. For the GSM band, UMTS band and LTE
band the radiation pattern of the proposed antenna is
suite
Gain et efficacité
Figure 5: Measured return loss of the manufactured antenna
compared with simulation result.
Gain, dB
(a)
Gain, dB
(b)
Gain, dB
(c)
Gain, dB
(d)
Figure 8: Simulated radiation pattern of the proposed antenna in
different frequencies. (a) at the 0.7 GHz, (b) at the 0.96 GHz, (c)
at the 2 GHz and (d) at the 2.7 GHz.
Figure 6: Measured gain of the proposed antenna.
Figure 7: Measured radiation efficiency of the proposed antenna
compared with the simulated result.
The measured value for the peak gain at the desired
frequency bands of (700�2700 MHz) is exhibited in Fig. 6. In
the other hand, the measured and simulated antenna efficiency
are also depicted in Fig. 7, featuring good agreement between
the measured and simulated results. It can be seen that the
antenna efficiency is higher than 50% in the lower band and
reaches 70% in the higher band.
The radiation patterns of the simulated and measured
antenna at different frequencies are plotted in the Fig. 8 and
Fig. 9 respectively. For the GSM band, UMTS band and LTE
band the radiation pattern of the proposed antenna is
Figure 5: Measured return loss of the manufactured antenna
compared with simulation result.
Gain, dB
(a)
Gain, dB
(b)
Gain, dB
(c)
Gain, dB
(d)
Figure 8: Simulated radiation pattern of the proposed antenna in
different frequencies. (a) at the 0.7 GHz, (b) at the 0.96 GHz, (c)
at the 2 GHz and (d) at the 2.7 GHz.
Figure 6: Measured gain of the proposed antenna.
Figure 7: Measured radiation efficiency of the proposed antenna
compared with the simulated result.
The measured value for the peak gain at the desired
frequency bands of (700�2700 MHz) is exhibited in Fig. 6. In
the other hand, the measured and simulated antenna efficiency
are also depicted in Fig. 7, featuring good agreement between
the measured and simulated results. It can be seen that the
antenna efficiency is higher than 50% in the lower band and
reaches 70% in the higher band.
The radiation patterns of the simulated and measured
antenna at different frequencies are plotted in the Fig. 8 and
Fig. 9 respectively. For the GSM band, UMTS band and LTE
band the radiation pattern of the proposed antenna is
suite
Diagramme en 3 D à 700 MHz (simulation et mesure)
suite
Diagramme en 3 D à 960 MHz (simulation et mesure)
suite
Diagramme en 3 D à 2000 MHz (simulation et mesure)
suite
Diagramme en 3 D à 2700 MHz (simulation et mesure)
Conclusion
• Conception d’une antenne large bande pour LTE 700 et
2700, GSM 900 and 1800, UMTS
• Réalisation avec une imprimante 3D faible cout
• Réalisation directe à partir de fichier stp issu de CST
• Métallisation avec de la peinture argent ou par dépot de
cuivre
• Bonnes performances en gain et efficacité
• Bonnes comparaisons entre la mesure et la simulation
• Facile et rapide à réaliser (antenne très légère)
J.M. Floch, B. El Jaafari, A. El Sayed Ahmed
« New Compact Broadband GSM/UMTS/LTE Antenna Realised by 3D Printing»
EUCAP 2015, Lisboa 13 – 17 april 2015
Produit d’AVIWEST
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