Skip to Main content Skip to Navigation
Theses

Apport des Surfaces à Haute Impédance à la conception d'antennes réseaux compactes et d'antennes réseaux à très large bande passante

Abstract : Phased array antennas play a growing place in modern airborne systems because it offers radio electric performances and integration capacities which can't be considered with others technologies. These applications can be grouped within the same system including antenna arrays with scan angle over a large frequency spectrum. Nevertheless, important antenna performance limitations are due to mutual coupling between radiating elements and to limited space available for antenna integration into aircraft. These two limitations can be removed with High Impedance Surface. HIS behaves as an artificial magnetic conductor (AMC) and/or electromagnetic band gap material which exhibits forbidden electromagnetic band gap (EBG) for surface waves at certain frequency bandwidths. After a state of the art of artificial materials and their abilities to reduce mutual coupling in an array, we present and propose analytical and numerical methods, validated by measurements, to design AMC, EBG structures, and compact absorbing material. Then we study several configurations employing classical solutions and HIS solutions used as a filter to reduce mutual coupling between two microstrip antennas spaced by a half wavelength. Finally, we present an analytical method, validated by numerical simulations, for designing a self-complementary connected antenna array located above a high impedance ground plane. Employed as reflector, HIS can create several additional bandwidths, possibly agile in frequency, and then widening the initial bandwidth of the antenna array. Moreover HIS can be designed for reducing the total antenna thickness.
Document type :
Theses
Complete list of metadatas

Cited literature [109 references]  Display  Hide  Download

https://pastel.archives-ouvertes.fr/pastel-00617270
Contributor : Fabrice Linot <>
Submitted on : Friday, August 26, 2011 - 5:13:04 PM
Last modification on : Friday, July 31, 2020 - 10:44:05 AM
Long-term archiving on: : Sunday, December 4, 2016 - 9:38:36 AM

Identifiers

  • HAL Id : pastel-00617270, version 1

Collections

Citation

Fabrice Linot. Apport des Surfaces à Haute Impédance à la conception d'antennes réseaux compactes et d'antennes réseaux à très large bande passante. Electromagnétisme. Télécom ParisTech, 2011. Français. ⟨pastel-00617270⟩

Share

Metrics

Record views

1186

Files downloads

6697