NDLI: Active Dallenbach radar absorber

Content Provider	IEEE Xplore Digital Library
Author	Chambers, B. Tennant, A.
Copyright Year	2006
Description	Author affiliation: Dept. of Electron. & Electr. Eng., Sheffield Univ. (Chambers, B.; Tennant, A.)
Abstract	Conventional radar absorbent materials (RAM) fall into two main types based on the Salisbury screen and the Dallenbach layer or their multi-layer counterparts. They operate by absorbing the incident electromagnetic energy and converting it into heat. An alternative approach is to use an active absorber, such as the phase-switched screen (PSS), which achieves an apparent reduction in the level of the electromagnetic energy reflected from its surface by using binary phase modulation to redistribute it over a bandwidth which is much wider than that of the receiver. To date, all the reported PSS implementations have used thin active layers consisting of arrays of PIN diode-loaded resonant elements and hence they may be considered as active versions of the Salisbury screen or Jaumann absorber topologies. In this paper, we consider an alternative route to the PSS, based on a medium with switchable material parameters. This may therefore be regarded as an active version of the Dallenbach absorber
Sponsorship	Motorola Air Force Office of Sci. Res. ANSOFT
Starting Page	381
Ending Page	384
File Size	136381
Page Count	4
File Format	PDF
ISBN	1424401232
DOI	10.1109/APS.2006.1710537
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar Dielectrics Frequency response Reflectivity Bandwidth Resonance Impedance Electromagnetic heating Phase modulation Diodes
Content Type	Text
Resource Type	Article

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Phase switched radar absorbers

Oblique incidence reflectivity characteristics of planar phase-switched screens

FDTD modelling of active radar absorbers

Performance enhancement of Salisbury screen absorber using a resistively loaded high impedance ground plane

Optimum switching of a phase-switched active radar absorber

A dual polarised phase-switched screen

Characteristics of phase switched screens in the presence of pulsed radar signals

Performance of a phase switched screen against a pulse compression radar system

Phase characterisation in salisbury screen absorber at oblique incidence

Active Dallenbach radar absorber

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Phase switched radar absorbers

Oblique incidence reflectivity characteristics of planar phase-switched screens

FDTD modelling of active radar absorbers

Performance enhancement of Salisbury screen absorber using a resistively loaded high impedance ground plane

Optimum switching of a phase-switched active radar absorber

A dual polarised phase-switched screen

Characteristics of phase switched screens in the presence of pulsed radar signals

Performance of a phase switched screen against a pulse compression radar system

Phase characterisation in salisbury screen absorber at oblique incidence

Active Dallenbach radar absorber