Ahmad Sarbaini , Syahirah (2016) Implementation Of Various Bio-Material As Double Negative Metamaterial Build In For Ultra-Wideband (UWB) Antenna Design. Project Report. UTeM, Melaka, Malaysia. (Submitted)
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Implementation Of Various Bio-Materials As Double Negative Metamaterial Build In For Ultra-Wideband (UWB) Antenna Design.pdf - Submitted Version Download (544kB) |
Abstract
This project proposed design of a metamaterial antenna on a substrate which the substrate has bio-material properties. A bio-compatible antenna is designed to be implement inside the human body for future telemedicine applications. The antenna is designed to operate on Ultra-Wideband (UWB) for short range communication system in medical application at a frequency of 8.1 GHz. The metamaterial antenna is designed on four different substrates such as Flame Retardant 4 (FR-4), Teflon, Alumina and PDMS in order to test the antenna performances inside the human body. The configurations are simulated and analyzed using Computer Simulation Technology (CST) software. Simulation results show a better performance in terms of gain, directivity and SAR value of the antenna with proposed metamaterial structure. Based on the four different substrates results, it is shown that the Teflon substrates yields better results than other substrates in free space and homogeneous human arm model. The SAR value was reduced from 5.68 W/Kg to 2.91W/Kg when antenna implemented with metamaterial structure. The UWB antenna with proposed metamaterial structure is verified fabrication and validation of antenna performance in the laboratory. The antenna used FR4 as substrate due to limitation of materials, time and cost. The results of return loss for an antenna with metamaterial during simulation operates at 8.1GHz with -64.36 dB while in measurement it operates at 8.5GHz with -25.72 dB. Both results from simulation and measurement shows that the antenna with metamaterial structure has better performance compared to conventional antenna.
| Item Type: | Final Year Project (Project Report) |
|---|---|
| Uncontrolled Keywords: | Ultra-wideband antennas, Ultra-wideband antennas -- Design and construction |
| Subjects: | T Technology > T Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Library > Final Year Project > FKEKK |
| Depositing User: | Muhammad Afiz Ahmad |
| Date Deposited: | 25 Jan 2017 01:12 |
| Last Modified: | 25 Jan 2017 01:12 |
| URI: | http://digitalcollection.utem.edu.my/id/eprint/17994 |
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