Suitable Impedance Boundary Condition Applied to the Enhancement of the Electric Field Radiated by a High Frequency Surface Wave Radar
| Autor: | Florent Jangal, Philippe Pouliguen, Muriel Darces, Nicolas Bourey, Marc Hélier |
|---|---|
| Přispěvatelé: | Laboratoire d'Electronique et Electromagnétisme (L2E), Sorbonne Université (SU), ONERA, Université Paris Saclay (COmUE) [Palaiseau], ONERA-Université Paris Saclay (COmUE), Délégation générale de l'armement (DGA), Ministère de la Défense |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
020301 aerospace & aeronautics Acoustics 02 engineering and technology Impedance boundary condition Physics::Classical Physics Electronic Optical and Magnetic Materials law.invention [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism 0203 mechanical engineering law Surface wave Electric field Radar |
| Zdroj: | Progress In Electromagnetics Research C Progress In Electromagnetics Research C, EMW Publishing, 2018, ⟨10.2528/PIERC18051805⟩ |
| ISSN: | 1937-8718 |
| DOI: | 10.2528/PIERC18051805⟩ |
| Popis: | International audience; Efficiency of high frequency surface wave radars may be improved by inserting a metamaterial in the vicinity of transmitting antennas that will reinforce the propagation of surface waves. This paper deals with the first and second order derivations of the surface impedance boundary conditions (IBC) applied to model such a metamaterial, which is equivalent to a bounded ground with a low negative permittivity. The goal of this paper is to extend an approach previously based on the classical Leontovich IBC which is usually restrained to high permittivity grounds. As shown here, a simplification in the expression of the surface impedance is possible in the case of a planar and homogeneous surface. That allows to have a first order impedance boundary condition substituted for the required second order impedance boundary condition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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