HF antenna design
This is a final year project report on the designing of a high frequency antenna. Design should be of a reasonable size and height as the final implementation would be on top of a structure. Certain criterions on radiation pattern and bandwidth must also be met. First, a bowtie design was exp...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/53403 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | This is a final year project report on the designing of a high frequency antenna. Design should be of a reasonable size and height as the final implementation would be on top of a structure. Certain criterions on radiation pattern and bandwidth must also be met.
First, a bowtie design was explored. Simulations were done on 2 simulators, HFSS and 4NEC-2 to verify the results and finalize the design. The final design was a bowtie shaped antenna that was constructed using wires instead of metal patches to maintain physical and financial practicality.
Having finalized the design, a detailed study was done on a simple dipole to test the effects a passive or active reflector have on the radiation pattern and input impedance of the dipole. To ensure that the study is a good representation for antennas working in the high frequency range, simulations were done on a 6m dipole and a 15m dipole. Variations were made to the dipole height, reflector height, reflector length and phase of an active dipole. |
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