DEVICE FOR ELECTROMAGNETIC DOSIMETRY COMPRISING AN INTEGRATING ELEMENT

    公开(公告)号:EP4170361A1

    公开(公告)日:2023-04-26

    申请号:EP21306477.7

    申请日:2021-10-22

    摘要: A device (1) for measuring a physical quantity related to an electromagnetic (EM) field emitted by an electromagnetic source (2), the device configured to simulate at least one EM scattering characteristic of a reference object made of an EM lossy medium, in particular a biological tissue, comprising:
    - at least one dielectric layer (3) comprising a top surface (31) oriented to the electromagnetic source (2) and a bottom surface (32), said layer (3) being at least partly transparent to the EM field emitted by the electromagnetic source (2);
    - at least one aperture focusing element (4) attached to or at least partly embedded in the bottom surface (32) of the dielectric layer (3), said at least one aperture focusing element (4) configured to focus the EM field incident on the at least one aperture element (4) into a focal zone (9);
    - at least one sensor (5) arranged beneath the at least one aperture focusing element (4) and configured to measure the physical quantity related to the electromagnetic field transmitted through the at least one dielectric layer (3) and the aperture focusing element (4), said at least one sensor (5) being positioned in the focal zone (9).

    PHANTOM DEVICE AND ELECTROMAGNETIC DOSIMETRY SYSTEM ASSOCIATED

    公开(公告)号:EP4170360A1

    公开(公告)日:2023-04-26

    申请号:EP21306476.9

    申请日:2021-10-22

    摘要: A phantom device (10) for reproducing at least one electromagnetic (EM) characteristic of a reference object made of an electromagnetic lossy medium, in particular a biological tissue, when illuminated by an EM wave with a predetermined frequency f1 emitted by an EM source (2), said phantom device comprising at least one unit structure, said unit structure comprising:
    - at least one first dielectric layer (12) comprising an upper surface (13) face to the electromagnetic source (2) and a bottom surface (14) opposite to the upper surface (13),
    - said upper surface (13) being at least partly transparent to the electromagnetic waves emitted by the source (2);
    - said bottom surface (14) being at least partly reflecting for the electromagnetic waves transmitted through the first dielectric layer (12);
    - said at least one first dielectric layer (12) characterized by a complex dielectric permittivity of its bulk material ε 1 ∗ =ε 1 ′ − jε 1 " having an absolute value in a range between 3 and 40;
    - said at least one first dielectric layer (12) further characterized by a thickness T 1 at least equal to 1/4 of the wavelength of the EM wave in the medium of the first dielectric layer (12).