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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
申请人： Université de Rennes 1 , Centre National de la Recherche Scientifique CNRS , Institut National des Sciences Appliquées de Rennes , Universite de Nantes , Centrale Supélec
发明人： ZHADOBOV, Maxim , BORYSKIN, Artem , SAULEAU, Ronan
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).-
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
申请人： Université de Rennes 1 , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) , Institut National des Sciences Appliquées de Rennes , Universite de Nantes , Centrale Supélec
发明人： ZHADOBOV, Maxim , BORYSKIN, Artem , SAULEAU, Ronan
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).-
公开(公告)号：EP4170359A1
公开(公告)日：2023-04-26
申请号：EP21306475.1
申请日：2021-10-22
申请人： Université de Rennes 1 , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) , Institut National des Sciences Appliquées de Rennes , Universite de Nantes , Centrale Supélec
发明人： ZHADOBOV, Maxim , BORYSKIN, Artem , SAULEAU, Ronan
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 the EM characteristics of a reference object made of a lossy medium, e.g. a biological tissue, particularly a human tissue, comprising:
- at least one dielectric layer (3) comprising an upper surface faced (31) to the electromagnetic source (2) and a bottom surface (32), said dielectric layer (3) being at least partly transparent to the EM field emitted by the electromagnetic source (2);
- at least one electromagnetic field enhancing element (4) arranged relative to the at least one dielectric layer (3) and configured in a manner to enhance the intensity of the electromagnetic field transmitted through the at least one dielectric layer (3) in a predetermined zone (12);
- at least one sensor (5) arranged beneath the at least one electromagnetic field enhancing element (4) and configured to measure said physical quantity related to the electromagnetic field transmitted through the at least one dielectric layer (3) and the at least one electromagnetic field enhancing element (4).-
公开(公告)号：EP3692596A1
公开(公告)日：2020-08-12
申请号：EP18799578.2
申请日：2018-10-04
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公开(公告)号：EP3692595A1
公开(公告)日：2020-08-12
申请号：EP18796717.9
申请日：2018-10-04
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公开(公告)号：EP4354158A1
公开(公告)日：2024-04-17
申请号：EP22306552.5
申请日：2022-10-13
申请人： Université de Rennes , Centre national de la recherche scientifique , Institut National des Sciences Appliquées de Rennes , Nantes Université , CentraleSupélec
CPC分类号： G01N25/72 , G01R29/0857 , G01R29/0892
摘要： Method for retrieving a useful signal from a bulk response signal emitted by a target subjected to an excitation signal, comprising:
- providing a first excitation signal (3a, 3b, 3c) at least modulated at a frequency Flock during a first period of time (t1) corresponding to a transient mode of a response signal and causing a first bulk response signal (4a, 4b, 4c) and recording said first bulk response signal,
- calculating a first Fourier transform FT{ΔT(t)} (10a, 10b, 10c) of said bulk response signal in response to said first excitation signal during said first period to provide a first spectrum of an exponential term (fe(ω)) (5a, 5b, 5c) a first spectrum of ambient noise (fn(ω)) (7) and a first spectrum of a useful signal (fp(ω)) (6a, 6b, 6c) in said first measured bulk response signal,
- extracting said first spectrum of a useful signal (fp(ω)) (6a, 6b, 6c) through removing said first spectrum of the exponential term (fe(ω)) (5a, 5b, 5c) from said first Fourier transform-
公开(公告)号：EP4332588A1
公开(公告)日：2024-03-06
申请号：EP22306307.4
申请日：2022-09-02
申请人： Université de Rennes , Centre National de la Recherche Scientifique , Institut National des Sciences Appliquées de Rennes , NANTES UNIVERSITÉ , CentraleSupélec
IPC分类号： G01R29/08
摘要： The invention relates to a device and method for measuring an electromagnetic dosimetric quantity received by an object illuminated by an electromagnetic (EM) field (23) emitted by an electromagnetic source (2), comprising:
- a screen (3) comprising a top surface (31) faced to the electromagnetic source (2) and a bottom surface (32) opposite to the top surface (31), said screen (3) being adapted to absorb at least a portion of the EM field emitted by the electromagnetic source (2);
- the screen comprising a plurality unit cells (33);
- at least one thermal sensor (5) arranged relative to the bottom surface of the screen (3) and configured to measure a physical quantity relative to the heat distribution along a surface of the screen induced due to the absorption of the electromagnetic field in the screen medium;
- a processing unit (6) linked to the at least one thermal sensor (5) and configured to calculate the electromagnetic dosimetric quantities from the measured heat distribution, the information relative to the EM field emitted by the EM source, and the predetermined EM and thermal properties of the screen.-
公开(公告)号：EP3325985A1
公开(公告)日：2018-05-30
申请号：EP16757289.0
申请日：2016-07-20
发明人： ZHADOBOV, Maxim , BORISKIN, Artem
IPC分类号： G01R29/08
CPC分类号： G01R29/0857
摘要： The invention relates to a device (A) for simulating characteristics of human tissues in electromagnetic dosimetry, the device (A) comprising a substrate (S) carrying a metal shielding (MSH), and a layer (DL) of a dielectric material arranged on or preferably beneath the substrate (S), the device (A) also comprising a plurality of openings (OSH) made in the shielding (MSH) and at least one array (SA) of sensors (SENS) in the layer (DL) of dielectric material.
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公开(公告)号：EP3691518A1
公开(公告)日：2020-08-12
申请号：EP18792435.2
申请日：2018-10-02
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