Abstract: A conductive layer includes a microwave transformer for scaling the intensity of a microwave signal of a first frequency by a scaling factor. The transformer includes a first physical area delimited with a closed curve on the conductive layer for receiving the microwave signal from a first space angle and re-emitting a ray of the microwave signal to a second space angle. A ratio of the first physical area to the second physical area is smaller than 0.5. The ratio of the first effective area to the first physical area is larger than the ratio of the second effective area to the second physical area. The scaling factor is the ratio of the maximal intensity of the re-emitted ray and the intensity of a ray through an open aperture having a physical area equivalent to the second physical area in the same direction than the re-emitted ray.

Abstract: A wall or façade structure for improving quality of reception of a wireless communication device inside a building from a base station located outside of the building. The building has the structure as a part of a building envelope. The structure, which is configured to boost transmission of electromagnetic signals through the building envelope, includes at least one electrically conductive low emissivity surface, a first aperture and a second aperture. The apertures are isolated from each other for providing narrow aperture diffraction and to obtain diversity reception at a first frequency in shadow areas inside the building. A distance between the apertures is between 1 and 10 meters to provide an envelope correlation coefficient of less than 0.1 for said apertures at the first frequency.

Abstract: A conductive layer includes a microwave transformer for scaling the intensity of a microwave signal of a first frequency by a scaling factor. The transformer includes a first physical area delimited with a closed curve on the conductive layer for receiving the microwave signal from a first space angle and re-emitting a ray of the microwave signal to a second space angle. A ratio of the first physical area to the second physical area is smaller than 0.5. The ratio of the first effective area to the first physical area is larger than the ratio of the second effective area to the second physical area. The scaling factor is the ratio of the maximal intensity of the re-emitted ray and the intensity of a ray through an open aperture having a physical area equivalent to the second physical area in the same direction than the re-emitted ray.

Abstract: A device and method for repeating wireless electromagnetic signals from a first side of a space divider to a second side of the space divider. The device provides discriminated communication channels at a first frequency range between the two spaces. The device includes a dual polarized repeater including a dielectric member, and conductive members as a group of radiators. The dual polarized repeater is installed into a discontinuity region of the space divider and provides an increment of a bistatic radar cross section through the discontinuity region for a first and second incident signals. A part of the first incident signal is scattered as a first beam by the device, and a part of the second incident signal is scattered as a second beam on the second side of the space divider. The dual polarized repeater provides cross polarization discrimination for the first and second incident signals.

Abstract: A device for receiving and re-radiating electromagnetic signals. The device includes at least a wave guide with a first set of slot radiators for receiving electromagnetic signals, and a second set of slot radiators for transmitting electromagnetic signals generated on the basis of the received electromagnetic signals in the waveguide. The first set of slot radiators includes one or more slot radiators, and the second set of slot radiators includes one or more slot radiators. The device also relates to a method for receiving and re-radiating electromagnetic signals by a device including at least a waveguide, and the use of the device as a repeater of electromagnetic signals, for transferring electromagnetic signals through a structure, and/or as a building product.

Abstract: A device for receiving and re-radiating electromagnetic signals. The device is configured to be attached with a construction supply. The device includes an electromagnetically floating group of resonating sections to form a propagation path to guide electromagnetic energy of the electromagnetic signals from one side of the construction supply to another side of the construction supply. The electromagnetically floating group of resonating sections includes at least a first resonating section and a second resonating section positioned in a near field of the adjacent, first resonating section in the direction of the propagation path. The disclosed embodiments also relates to a method for receiving and re-radiating electromagnetic signals by a device attached with a construction supply.

Abstract: A wall or façade structure for improving quality of reception of a wireless communication device inside a building from a base station located outside of the building. The building has the structure as a part of a building envelope. The structure, which is configured to boost transmission of electromagnetic signals through the building envelope, includes at least one electrically conductive low emissivity surface, a first aperture and a second aperture. The apertures are isolated from each other for providing narrow aperture diffraction and to obtain diversity reception at a first frequency in shadow areas inside the building. A distance between the apertures is between 1 and 10 meters to provide an envelope correlation coefficient of less than 0.1 for said apertures at the first frequency.

Abstract: A building material including at least one electrically conductive low emissivity surface provided with an opening for boosting the transmission of an electromagnetic signal through the building material, the opening having a substantially lower electrical conductivity than the low emissivity surface. The edge of the opening provided in said low emissivity surface constitutes at least one closed edge curve, and said opening defines a closed envelope curve so that said opening is within the closed envelope curve, and the surface defined by the closed envelope curve has an area substantially larger than the area of the opening within the closed envelope curve and a length substantially smaller than the length of the closed envelope curve, whereby at least one such low emissivity surface area is formed within the area defined by the closed envelope curve, at which the closed envelope curve is not congruent with the edge curve.

Abstract: A building material including at least one electrically conductive low emissivity surface provided with an opening for boosting the transmission of an electromagnetic signal through the building material, the opening having a substantially lower electrical conductivity than the low emissivity surface. The edge of the opening provided in said low emissivity surface constitutes at least one closed edge curve, and said opening defines a closed envelope curve so that said opening is within the closed envelope curve, and the surface defined by the closed envelope curve has an area substantially larger than the area of the opening within the closed envelope curve and a length substantially smaller than the length of the closed envelope curve whereby at least one such low emissivity surface area is formed within the area defined by the closed envelope curve, at which the closed envelope curve is not congruent with the edge curve.

Abstract: A device for receiving and re-radiating electromagnetic signals. The device includes at least a wave guide with a first set of slot radiators for receiving electromagnetic signals, and a second set of slot radiators for transmitting electromagnetic signals generated on the basis of the received electromagnetic signals in the waveguide. The first set of slot radiators includes one or more slot radiators, and the second set of slot radiators includes one or more slot radiators. The device also relates to a method for receiving and re-radiating electromagnetic signals by a device including at least a waveguide, and the use of the device as a repeater of electromagnetic signals, for transferring electromagnetic signals through a structure, and/or as a building product.

Abstract: A device for receiving and re-radiating electromagnetic signals. The device includes at least a waveguide with a first set of slot radiators for receiving electromagnetic signals, and a second set of slot radiators for transmitting electromagnetic signals generated on the basis of the received electromagnetic signals in the waveguide. The first set of slot radiators includes one or more slot radiators, and the second set of slot radiators includes one or more slot radiators. The device also relates to a method for receiving and re-radiating electromagnetic signals by a device including at least a waveguide, and the use of the device as a repeater of electromagnetic signals, for transferring electromagnetic signals through a structure, and/or as a building product.