Imaging electric and magnetic near field of radiating structures by infrared thermography
| Autor: | François Issac, Daniel Prost, Maxime Romier |
|---|---|
| Přispěvatelé: | André, Cécile, ONERA / DEMR, Université de Toulouse [Toulouse], ONERA-PRES Université de Toulouse, Centre National d'Études Spatiales [Toulouse] (CNES) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Electromagnetic field
Field (physics) [SPI] Engineering Sciences [physics] SURFACE A HAUTE IMPEDANCE Near and far field 02 engineering and technology NEAR-FIELD VISUALIZATION 7. Clean energy [PHYS] Physics [physics] [SPI]Engineering Sciences [physics] ELECTROMAGNETISME Optics Electromagnetism INFRARED THERMOGRAPHY 0202 electrical engineering electronic engineering information engineering [PHYS]Physics [physics] Physics business.industry Metamaterial 020206 networking & telecommunications 021001 nanoscience & nanotechnology THERMOGRAPHIE INFRAROUGE ELECTROMAGNETISM HIGH IMPEDANCE SURFACE Magnetic field VISUALISATION DU CHAMP PROCHE Thermography Antenna (radio) 0210 nano-technology business |
| Zdroj: | EMC Europe 2019 EMC Europe 2019, Sep 2019, BARCELONE, Spain |
| Popis: | International audience; The characterization and visualization of the radiated electromagnetic field is a way to diagnose and check microwaves sources, in particular in the space industry. Beyond the traditional 3D scanning of the radiating element, infrared thermography is an alternative way that may give key results in a reduced time, since a few seconds are sufficient to obtain the emitted field map even for a complex multi-cells antenna. This method, called EMIR (ElectroMagnetic InfraRed) has been developed and used for years at ONERA. We have recently extended this technique to the magnetic field, which will lead to a complete characterization of the near field structure. We illustrate this feature in the particular cases of antennas for space application and for a High Impedance Surface (HIS), a metamaterial structure that could be used to reduce the coupling between antennas confined in compact structures (typically size constraints of the spatial components). |
| Databáze: | OpenAIRE |
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