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Details for article 4 of 10 found articles
| Title: |
Electromagnetic fields of a dipole source in a circular tunnel containing a surface wave line |
| Author: |
Wait, James R. Hill, David A. |
| Appeared in: |
International journal of electronics |
| Paging: | Volume 42 (1977) nr. 4 pages 377-391 |
| Year: |
1977-04-01 |
| Contents: |
We present a boundary value analysis for the fields excited by a dipole in a circular tunnel that contains a dielectric coated axial conductor. The integral form of the solution is generally valid provided the outer radius of the dielectric coated conductor is small compared with its distance to the tunnel wall. The propagation mode that behaves as an axial surface wave at high frequencies is examined for a frequency range from 1 MHz to 1 GHz. The attenuation reaches a maximum value at frequencies of the order of 100 MHz where the absorption loss by the tunnel wall is most significant. In the range from 1 to about 10 MHz, the attenuation rate is approximately proportional to frequency and is only weakly dependent on the conductivity of the region external to the tunnel walls. The results are consistent with earlier investigations for surface wave lines located over a homogeneous half-space. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 4 of 10 found articles
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