Abstract: Phantom device for reproducing an electromagnetic characteristic of a reference object made of an electromagnetic lossy medium when illuminated by an electromagnetic wave with a predetermined frequency emitted by an electromagnetic source. The phantom device including a unit structure being at least partly transparent to the electromagnetic wave, and including: a first dielectric layer including an upper surface face to the electromagnetic source and a bottom surface opposite to the upper surface, the upper surface being at least partly transparent to the electromagnetic wave, the bottom surface being at least partly reflecting for the electromagnetic wave transmitted through the first dielectric layer, the first dielectric layer characterized by an effective complex dielectric permittivity of its bulk material, and by a thickness selected to reproduce the at least one electromagnetic characteristics of the reference object for a combination of the effective complex dielectric permittivity and the thickness.

Abstract: A device for measuring a physical quantity related to an electromagnetic field emitted by an electromagnetic source. The device is configured to simulate the electromagnetic characteristics of a reference object made of a lossy medium, e.g. a biological tissue. The device includes: a dielectric layer including an upper surface faced to the electromagnetic source and a bottom surface, the dielectric layer being at least partly transparent to the electromagnetic field emitted by the electromagnetic source; an electromagnetic field enhancing element arranged relative to the dielectric layer and configured in a manner to enhance the intensity of the electromagnetic field transmitted through the dielectric layer in a pre-determined zone; and a sensor arranged beneath the electromagnetic field enhancing element and configured to measure the physical quantity related to the electromagnetic field transmitted through the dielectric layer and the electromagnetic field enhancing element.

Abstract: The biotelemetry device (100) comprises a microcontroller (101) for generating an electrical setpoint signal (CS); a radio antenna (103) for transmitting an electromagnetic wave (EMS) by converting an incident electrical signal (IS); a radiofrequency circuit (102), interconnected between the microcontroller (101) and the radio antenna (103). The radio antenna (103) is configured such that, when the biotelemetry device (100) is placed in the biological medium (110), it can be impedance-mismatched relative to the radiofrequency circuit (102) so as to generate a reflected electrical signal (RS) by reflecting a fraction of the incident electrical signal at the same time that the radio antenna is transmitting the electromagnetic wave (EMS).

Abstract: Disclosed is a radio antenna comprising a substrate of dielectric material; a ground plane of electrically conductive material on a first face of the substrate; a resonator for converting an incident electrical signal into an electromagnetic wave and for resonating at at least two different resonant frequencies. The resonator comprises at least three elements, each in the form of strips of conductive material and arranged on a second face of the substrate opposite the first face. A second element is electrically connected to the ground plane by means of a via passing through the substrate at a first end of the corresponding strip, forms an extension of the first element, and is electrically connected directly to the first element at a second end of said strip which is opposite the first end.

Abstract: Disclosed is a radio antenna comprising a substrate of dielectric material; a ground plane of electrically conductive material on a first face of the substrate; a resonator for converting an incident electrical signal into an electromagnetic wave and for resonating at at least two different resonant frequencies. The resonator comprises at least three elements, each in the form of strips of conductive material and arranged on a second face of the substrate opposite the first face. A second element is electrically connected to the ground plane by means of a via passing through the substrate at a first end of the corresponding strip, forms an extension of the first element, and is electrically connected directly to the first element at a second end of said strip which is opposite the first end.

Abstract: Disclosed is a radio antenna comprising a substrate of dielectric material; a ground plane of electrically conductive material on a first face of the substrate; a resonator for converting an incident electrical signal into an electromagnetic wave and for resonating at at least two different resonant frequencies. The resonator comprises at least three elements, each in the form of strips of conductive material and arranged on a second face of the substrate opposite the first face. A second element is electrically connected to the ground plane by means of a via passing through the substrate at a first end of the corresponding strip, forms an extension of the first element, and is electrically connected directly to the first element at a second end of said strip which is opposite the first end.

Abstract: A microwave generator configured to induce a change in temperature in a target area of a biological tissue so that the temperature of the target area exceeds the lethal threshold for the biological tissue, wherein the microwave generator is configured to release an electromagnetic pulse train in a frequency range between 0.4 GHz and 100 GHz that induces a thermal pulse train in the biological tissue, wherein: each pulse has a duration comprised between 100 ms and 2 minutes for the electromagnetic pulse train; the pulse width to period ratio is below 0.25 for the electromagnetic pulse train and the pulse width to period ratio is below 0.25 for the thermal pulse train; the peak to average ratio for the electromagnetic power exceeds 2 for the electromagnetic pulse train and the peak to average ratio for the temperature exceeds 2 for the thermal pulse train.

Abstract: The biotelemetry device (100) comprises a microcontroller (101) for generating an electrical setpoint signal (CS); a radio antenna (103) for transmitting an electromagnetic wave (EMS) by converting an incident electrical signal (IS); a radiofrequency circuit (102), interconnected between the microcontroller (101) and the radio antenna (103). The radio antenna (103) is configured such that, when the biotelemetry device (100) is placed in the biological medium (110), it can be impedance-mismatched relative to the radiofrequency circuit (102) so as to generate a reflected electrical signal (RS) by reflecting a fraction of the incident electrical signal at the same time that the radio antenna is transmitting the electromagnetic wave (EMS).

Abstract: The radio antenna comprises a substrate formed of a dielectric material; a ground plane made of an electrically conductive material, the ground plane being arranged on a first face (F2) of the substrate; a resonator configured to convert an incident electrical signal into an electromagnetic wave. The resonator includes a first element (E1) having a first characteristic impedance and a second element (E2) having a second characteristic impedance that is higher than the first characteristic impedance. The first element (E1) is configured to receive the incident electrical signal, the first element (E1) is formed by a strip of electrically conductive material, the strip being arranged on a second face (F1) of the substrate opposite the first face (F2). The second element (E2) is formed by a rectilinear segment, cut in the ground plane and separated from the rest of the ground plane by a slot (202) of fixed width.

Abstract: The radio antenna comprises a substrate formed of a dielectric material; a ground plane made of an electrically conductive material, the ground plane being arranged on a first face (F2) of the substrate; a resonator configured to convert an incident electrical signal into an electromagnetic wave. The resonator includes a first element (El) having a first characteristic impedance and a second element (E2) having a second characteristic impedance that is higher than the first characteristic impedance. The first element (El) is configured to receive the incident electrical signal, the first element (El) is formed by a strip of electrically conductive material, the strip being arranged on a second face (Fl) of the substrate opposite the first face (F2). The second element (E2) is formed by a rectilinear segment, cut in the ground plane and separated from the rest of the ground plane by a slot (202) of fixed width.

Abstract: Some embodiments relate to a device for simulating characteristics of human tissues in electromagnetic dosimetry. The device includes a substrate bearing a metallised shielding, a layer of a dielectric material arranged on or preferentially beneath the substrate and the device including a plurality of openings made in the shielding and at least one array of sensors in the layer of dielectric material.

Abstract: Disclosed is a radio antenna comprising a substrate of dielectric material; a ground plane of electrically conductive material on a first face of the substrate; a resonator for converting an incident electrical signal into an electromagnetic wave and for resonating at at least two different resonant frequencies. The resonator comprises at least three elements, each in the form of strips of conductive material and arranged on a second face of the substrate opposite the first face. A second element is electrically connected to the ground plane by means of a via passing through the substrate at a first end of the corresponding strip, forms an extension of the first element, and is electrically connected directly to the first element at a second end of said strip which is opposite the first end.

Abstract: Some embodiments relate to a device for simulating characteristics of human tissues in electromagnetic dosimetry. The device includes a substrate bearing a metallised shielding, a layer of a dielectric material arranged on or preferentially beneath the substrate and the device including a plurality of openings made in the shielding and at least one array of sensors in the layer of dielectric material.