Open AccessMagnetic Salisbury screen and its high-frequency response
Author(s) -
RuiXin Wu,
Pïng Chen
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.2915
Subject(s) - reflectivity , materials science , optics , frequency response , microwave , magnetic field , magnetic susceptibility , broadband , micrometer , nuclear magnetic resonance , condensed matter physics , physics , electrical engineering , quantum mechanics , engineering
We have studied the possibility of constructing magnetic Salisbury screen, and the frequency response of reflectivity of the screen in microwave frequency range. We have found that magnetic Salisbury screen has a lower reflectivity when magnetic susceptibility satisfies χ″χ′. If the frequency response of magnetic susceptibility is in the relax type of domain wall resonance, we could make filmtype Salisbury screen, in which the thickness of the screen may be in the order of micrometer or even submicrometer. The reflectivity of the screen depends on the characteristic impedance zr of the magnetic film that is determined by ferromagnetic resonant frequency and susceptibility under a static field. The frequency response of reflectivity shows that the magnetic film Salisburyscreen has a broadband frequency range for absorbing microwaves well.