Cone angle of a disc-cone antenna: theory and practice
When calculating the dimensions of a disc-cone antenna, an interesting point is the choice of the cone angle. The optimal value of this angle is usually 30 degrees. The argumentation in favor of this choice is practically not given. In this paper, we have carried out theoretical and experimental...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhytomyr Polytechnic State University
2024-06-01
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| Series: | Технічна інженерія |
| Subjects: | |
| Online Access: | http://ten.ztu.edu.ua/article/view/308095 |
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| Summary: | When calculating the dimensions of a disc-cone antenna, an interesting point is the choice of the cone angle. The optimal value of this angle is usually 30 degrees. The argumentation in favor of this choice is practically not given.
In this paper, we have carried out theoretical and experimental studies of the effect of the cone angle on the input impedance of a disc-cone antenna. It is shown on the basis of which a significant proportion of publications on the choice of the cone angle usually indicate intervals from 20 to 40 degrees, and the best value of this angle is 30 degrees. This follows from the fact that at such values it is easy to ensure the input impedance of such antenna is 50 ohms, i.e., to connect it directly to a coaxial cable with a wave impedance of 50 ohms.
This has been confirmed experimentally, i.e. a cone angle close to 30 degrees allows obtaining an input impedance value as close to 50 ohms as possible.
It is also shown that when the VSWR is 2, the possible range of cone angle values is approximately from 17 to 37 degrees, and when it is 1.5, from 23 to 34 degrees. |
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| ISSN: | 2706-5847 2707-9619 |