The phase-switched screen

Author

Chambers, Barry ; Tennant, Alan

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Sheffield, UK

Volume

46

Issue

6

fYear

2004

Firstpage

23

Lastpage

37

Abstract

Conventional (passive) radar-absorbent materials operate either by phase cancellation or by absorbing incident electromagnetic energy and converting it into heat. This paper examines a new type of active "absorber," called the phase-switched screen (PSS). The PSS operates quite differently from passive absorbers in that it exhibits an apparently low value of reflectivity by redistributing the electromagnetic energy incident upon it over a bandwidth that is wide enough to ensure that little reflected energy falls within the pass-band of the receiver. The discussion considers the basic temporal and spectral properties of several PSS topologies, and includes measured data on both planar and cylindrical PSS structures.

Keywords

absorbing media; electromagnetic wave absorption; electromagnetic wave reflection; electromagnetic wave scattering; passive radar; radar cross-sections; absorbing media; electromagnetic energy; electromagnetic scattering; intelligent material; intelligent structure; modulation; passive absorber; phase cancellation; phase-switched screen; radar cross-section; radar-absorbent material; spectral property; temporal property; Electromagnetic scattering; Frequency; Intelligent sensors; Intelligent structures; Physics; Radar cross section; Radar tracking; Read-write memory; Reflectivity; Vehicles;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/MAP.2004.1396733

Filename

1396733