TY - GEN
T1 - Rheology Properties of Carbon Nanotube Thick Film Paste for Potential Application in Patch Antenna
AU - Hasan, Intan Helina
AU - Hamidon, Mohd Nizar
AU - Ismail, Ismayadi
AU - Kusaimi, Muhammad Asnawi Mohd
AU - Azhari, Saman
AU - Shafiee, Farah Nabilah
N1 - Funding Information:
This work is funded by Putra Grant GP/2018/9627100, Universiti Putra Malaysia.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - This work investigated the effect of various carbon nanotube (CNT) powders' weight ratio for the preparation of CNT thick film paste. CNT pastes have been prepared with powder weight ratios of 5 wt%, 10wt%, 15wt% and 20wt% to study the rheological properties of the paste. Results show that pastes with a weight ratio of 15wt% and 20wt% have high viscosity at a low shear rate and decreasing viscosity as shear rates increases. This shear-thinning rheological behaviour is found to be suitable for screen printing pastes. Measurement results of CNT thick film patch antenna show that CNT thick film significantly widens the bandwidth of the antenna while having good return loss. The frequency shift as compared with an antenna with the silver conductive film however notably increases, indicating that electrical properties of CNT patch are lower than those of silver patch, which may occur due to the defects of CNTs in the paste.
AB - This work investigated the effect of various carbon nanotube (CNT) powders' weight ratio for the preparation of CNT thick film paste. CNT pastes have been prepared with powder weight ratios of 5 wt%, 10wt%, 15wt% and 20wt% to study the rheological properties of the paste. Results show that pastes with a weight ratio of 15wt% and 20wt% have high viscosity at a low shear rate and decreasing viscosity as shear rates increases. This shear-thinning rheological behaviour is found to be suitable for screen printing pastes. Measurement results of CNT thick film patch antenna show that CNT thick film significantly widens the bandwidth of the antenna while having good return loss. The frequency shift as compared with an antenna with the silver conductive film however notably increases, indicating that electrical properties of CNT patch are lower than those of silver patch, which may occur due to the defects of CNTs in the paste.
KW - carbon nanotubes
KW - patch antenna
KW - thick film
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U2 - 10.1109/RSM46715.2019.8943504
DO - 10.1109/RSM46715.2019.8943504
M3 - Conference contribution
AN - SCOPUS:85078257189
T3 - Proceedings of the 2019 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2019
SP - 109
EP - 111
BT - Proceedings of the 2019 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Regional Symposium on Micro and Nanoelectronics, RSM 2019
Y2 - 21 August 2019 through 23 August 2019
ER -