Skip to Main content Skip to Navigation
New interface
Theses

Study of corona discharges on VHF antennas caused by a natural electrostatic field

Mingtian Wang 1 
1 EMA - ENAC Equipe TELECOM-EMA
TELECOM - ENAC - Equipe télécommunications
Abstract : In civil aviation, communications between pilots and air trafic controllers are of primary importance. A jamming has been experienced on ground stations working in the VHF frequencyband (118-134 MHz). This has impaired air-ground communications. This phenomenon is due to Corona discharges occurring on the antenna pylon when there is a strong ambient electrostatic field. The aim of this PhD is to develop a model to predict the noise on the antenna induced by corona discharges, for a given geometry and ambient field. Firstly, we localize the places where corona discharges most likely occur via an electrostatic simulations. Then, we propose and validate an elementary dipole model to represent the radiation of corona discharges in the frequency domain. Finally we evaluate the interference introduced by corona discharges at the antenna ports by means of simulations in the frequency domain. The simulation results are compared with measurements.
Document type :
Theses
Complete list of metadata

Cited literature [62 references]  Display  Hide  Download

https://theses.hal.science/tel-00976587
Contributor : Céline Smith Connect in order to contact the contributor
Submitted on : Thursday, April 10, 2014 - 10:13:37 AM
Last modification on : Tuesday, October 19, 2021 - 11:02:56 AM
Long-term archiving on: : Thursday, July 10, 2014 - 11:06:10 AM

Identifiers

  • HAL Id : tel-00976587, version 1

Collections

Citation

Mingtian Wang. Study of corona discharges on VHF antennas caused by a natural electrostatic field. Electromagnetism. Université Paul Sabatier - Toulouse III, 2014. English. ⟨NNT : ⟩. ⟨tel-00976587⟩

Share

Metrics

Record views

266

Files downloads

1452