Patents by Inventor Daniel Sjöberg

Daniel Sjöberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20260229758
    Abstract: The present disclosure relates to a tunable waveguide filter arrangement (110) comprising a first filter port (111), a second filter port (112) and a plurality of cavities (113, 114, 115, 116) that are positioned between the first filter port (111) and the second filter port (112). The cavities are electrically interconnected by being arranged in a partly interleaved manner such that overlaps form iris openings (117, 118, 119) between the cavities (113, 114, 115, 116). The tunable waveguide filter arrangement (110) comprises a dielectric element (120, 121, 122, 123) for each cavity (113, 114, 115, 116), extending a certain adjustable protrusion distance (P) along its longitudinal extension (L) from a waveguide top (124) towards a waveguide bottom (125). A longitudinal center (L) of each dielectric element (120, 121, 122, 123) is positioned at a certain closest distance (d1, d2, d3, d4, d5, d6) from at least one adjacent iris opening (117, 118, 119).
    Type: Application
    Filed: February 6, 2023
    Publication date: August 6, 2026
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jan SANDBERG, Anatoli DELENIV, Daniel SJÖBERG
  • Patent number: 12689406
    Abstract: The present disclosure relates to an electrical filter arrangement including a transmitter port, a receiver port and an antenna port. The electrical filter arrangement further includes a transmitter filter connected to the first transmitter port and a receiver filter connected to the receiver port. The electrical filter arrangement further includes a four-port circulator device that is connected between the filters, the antenna port, and a termination impedance that is connected to ground. The circulator device is adapted to admit signals to pass from the transmitter filter to the antenna port, from the antenna port to the receiver filter, and from the receiver filter to the termination impedance.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: July 21, 2026
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Göran Syngg, Daniel Sjöberg
  • Patent number: 12651829
    Abstract: The present disclosure relates to an antenna arrangement including a first antenna configured to operate within a first frequency band and a planar layer having an oblong conducting structure attached thereon, the conducting structure being arranged within an illumination-field of the first antenna. Further including a plurality of capacitive strips arranged on opposing longitudinal portions of the planar layer extending along a length of the conducting structure, the longitudinal portions being separated by the conducting structure.
    Type: Grant
    Filed: May 16, 2023
    Date of Patent: June 9, 2026
    Assignee: SAAB AB
    Inventors: Bengt Svensson, Anders Höök, Glenn Sjöberg, Daniel Sjöberg, Alexandros Pallaris
  • Publication number: 20260016399
    Abstract: An absorption sheet for absorbing power from an electromagnetic wave generated by a device under test includes a substrate and an array of absorption elements. Each absorption element includes a conductive portion and a resistive portion. A system for performing a radiation characterization includes the absorption sheet. A method of measuring a radiative near field of a device under test and a method of characterizing a radiative near field of a device under test are also disclosed.
    Type: Application
    Filed: July 17, 2025
    Publication date: January 15, 2026
    Inventors: Daniel Sjöberg, Mats Gustafsson, Johan Lundgren
  • Patent number: 12489449
    Abstract: The present disclosure relates to oscillator arrangement comprising an output port adapted to output an output signal with an output frequency (fout), an in loop oscillator that is adapted for an in loop oscillator frequency (fosc) and an additional oscillator that is adapted for an additional oscillator frequency (foscA). The output frequency (fout): exceeds the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA), is dependent on both the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA), and is adapted to control the in loop oscillator frequency (fosc) via a feed-back loop.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: December 2, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jan Sandberg, Daniel Sjöberg, Bengt Madeberg, Mikael Hörberg
  • Publication number: 20250309524
    Abstract: The present disclosure relates to an antenna arrangement including a first antenna configured to operate within a first frequency band and a planar layer having an oblong conducting structure attached thereon, the conducting structure being arranged within an illumination-field of the first antenna. Further including a plurality of capacitive strips arranged on opposing longitudinal portions of the planar layer extending along a length of the conducting structure, the longitudinal portions being separated by the conducting structure.
    Type: Application
    Filed: May 16, 2023
    Publication date: October 2, 2025
    Inventors: Bengt SVENSSON, Anders HÖÖK, Glenn SJÖBERG, Daniel SJÖBERG, Alexandros PALLARIS
  • Patent number: 12407106
    Abstract: An adaptable microwave radio transceiver system having a microwave radio transceiver and at least two waveguide adapters, where the microwave radio transceiver is adapted for at least two waveguide frequency bands and includes at least one radio port that includes a corresponding probe of a fixed length and extends via an inner insulating part in a bottom in the corresponding radio port. Each waveguide adapter has a first end facing the corresponding bottom where each first end includes a bottom wall with an outer insulating part through which the corresponding probe is adapted to protrude a protrusion distance. The protrusion distance is dependent on a thickness of the bottom wall, where at least two waveguide adapters have different thickness of the corresponding bottom wall, where any one of the waveguide adapters is exchangeably mountable to the radio port.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: September 2, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Daniel Sjöberg, Göran Snygg
  • Patent number: 12392711
    Abstract: An absorption sheet for absorbing power from an electromagnetic wave generated by a device under test includes a substrate and an array of absorption elements. Each absorption element includes a conductive portion and a resistive portion. A system for performing a radiation characterization includes the absorption sheet. A method of measuring a radiative near field of a device under test and a method of characterizing a radiative near field of a device under test are also disclosed.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: August 19, 2025
    Assignee: MXWaves AB
    Inventors: Daniel Sjöberg, Mats Gustafsson, Johan Lundgren
  • Publication number: 20240405779
    Abstract: The present disclosure relates to oscillator arrangement comprising an output port adapted to output an output signal with an output frequency (fout), an in loop oscillator that is adapted for an in loop oscillator frequency (fosc) and an additional oscillator that is adapted for an additional oscillator frequency (foscA). The output frequency (fout); exceeds the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA), is dependent on both the in loop oscillator frequency (fosc) and the additional oscillator frequency (foscA), and is adapted to control the in loop oscillator frequency (fosc) via a feed-back loop.
    Type: Application
    Filed: October 4, 2021
    Publication date: December 5, 2024
    Inventors: Jan SANDBERG, Daniel SJÖBERG, Bengt MADEBERG, Mikael HÖRBERG
  • Patent number: 12142810
    Abstract: The present disclosure relates to an oscillator device (1, 1?, 1?, 1??) comprising an active circuit device (2, 2??), a circuit board (3) and a cavity resonator (4, 4?). The active circuit device (2, 2??) comprises an amplifier unit (5), and the circuit board (3) comprises a first main side (6) and a second main side (7), where the active circuit device (2, 2??) is mounted to the first main side (6). The cavity resonator (4, 4?) is positioned on the second main side (7). The oscillator device (1) further comprises at least one excitation via connection (8) that runs through the circuit board (3) and electrically connects the active circuit device (2, 2??) to an excitation structure (9) inside the cavity resonator (4, 4?).
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 12, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mikael Hörberg, Jan Sandberg, Daniel Sjöberg, Niklas Lidström
  • Publication number: 20240322856
    Abstract: The present disclosure relates to an electrical filter arrangement including a transmitter port, a receiver port and an antenna port. The electrical filter arrangement further includes a transmitter filter connected to the first transmitter port and a receiver filter connected to the receiver port. The electrical filter arrangement further includes a four-port circulator device that is connected between the filters, the antenna port, and a termination impedance that is connected to ground. The circulator device is adapted to admit signals to pass from the transmitter filter to the antenna port, from the antenna port to the receiver filter, and from the receiver filter to the termination impedance.
    Type: Application
    Filed: July 8, 2021
    Publication date: September 26, 2024
    Inventors: Göran SYNGG, Daniel SJÖBERG
  • Publication number: 20240130056
    Abstract: The present invention relates to a method and apparatus that employs an opening/closing mechanism for controlling temperature and humidity in an electrical enclosure. The electrical enclosure comprises a first and a second vent hole, wherein the second vent hole is further a drain hole. The vent holes both comprise an opening/closing mechanism that can be controlled based on sensor data obtained inside and/or outside the electrical enclosure.
    Type: Application
    Filed: February 15, 2021
    Publication date: April 18, 2024
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Göran SNYGG, Daniel SJÖBERG
  • Publication number: 20240055747
    Abstract: The present disclosure relates to a waveguide interface comprising a first waveguide aperture, provided in a first waveguide device, a second waveguide aperture, provided in a second waveguide device, and a waveguide connecting tube having a longitudinal extension and comprising waveguide walls and a connecting waveguide aperture for transfer of microwave signals. The waveguide connecting tube comprises a first end that is adapted to be at least partly inserted into the first waveguide aperture, and a second end that is adapted to be at least partly inserted into the second waveguide aperture, such that the first waveguide aperture and the second waveguide aperture are electrically connected via the waveguide connecting tube.
    Type: Application
    Filed: December 22, 2020
    Publication date: February 15, 2024
    Inventors: Daniel Sjöberg, Göran Snygg, Erik Carlsson
  • Publication number: 20240032184
    Abstract: The present disclosure relates to an electronic component package arrangement comprising an integrated circuit (IC), a metal carrier and at least one flexible conductor device. The IC has an IC mounting surface and the metal carrier has a carrier mounting surface with an area that exceeds an area of the IC mounting surface, where the mounting surfaces are mounted to each other. The flexible conductor device is placed between the IC and the metal carrier and comprises a metallization that is carried on a flexible dielectric carrier material. The metallization forms flexible conductor tracks to which the IC is electrically connected and lead from the IC to a position distanced from the metal carrier such that the flexible conductor tracks can be electrically connected to an external device.
    Type: Application
    Filed: December 22, 2020
    Publication date: January 25, 2024
    Inventors: Göran Snygg, Daniel Sjöberg
  • Publication number: 20240011893
    Abstract: An absorption sheet for absorbing power from an electromagnetic wave generated by a device under test includes a substrate and an array of absorption elements. Each absorption element includes a conductive portion and a resistive portion. A system for performing a radiation characterization includes the absorption sheet. A method of measuring a radiative near field of a device under test and a method of characterizing a radiative near field of a device under test are also disclosed.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 11, 2024
    Inventors: Daniel Sjöberg, Mats Gustafsson, Johan Lundgren
  • Publication number: 20230216167
    Abstract: A filter device for routing microwave/RF signals is disclosed comprising an antenna port and at least one filter unit. Each filter unit comprises a receiving port, a transmitting port, an antenna node; a circulator comprising first, second, and third ports; and a receiver branch from the receiving port to the first port. The receiver branch comprises a receiver filter having first and second ports. Each filter unit also comprises a transmitter branch, comprising a transmitter filter having first and second ports. Moreover, the third port of the circulator is coupled to the antenna node. Each filter unit further comprises at least one of a receiver isolator coupled to the receiver filter and the circulator, and a transmitter isolator coupled to the transmitter filter and the circulator.
    Type: Application
    Filed: June 17, 2020
    Publication date: July 6, 2023
    Inventors: Göran Snygg, Daniel Sjöberg, Erik Carlsson
  • Publication number: 20230198153
    Abstract: An adaptable microwave radio transceiver system having a microwave radio transceiver and at least two waveguide adapters, where the microwave radio transceiver is adapted for at least two waveguide frequency bands and includes at least one radio port that includes a corresponding probe of a fixed length and extends via an inner insulating part in a bottom in the corresponding radio port. Each waveguide adapter comprises has a first end facing the corresponding bottom where each first end includes a bottom wall with an outer insulating part through which the corresponding probe is adapted to protrude a protrusion distance. The protrusion distance is dependent on a thickness of the bottom wall, where at least two waveguide adapters have different thickness of the corresponding bottom wall, where any one of the waveguide adapters is exchangeably mountable to the radio port.
    Type: Application
    Filed: May 11, 2020
    Publication date: June 22, 2023
    Inventors: Daniel SJÖBERG, Göran SNYGG
  • Publication number: 20230009025
    Abstract: The present disclosure relates to an oscillator device (1, 1?, 1?, 1??) comprising an active circuit device (2, 2??), a circuit board (3) and a cavity resonator (4, 4?). The active circuit device (2, 2??) comprises an amplifier unit (5), and the circuit board (3) comprises a first main side (6) and a 5 second main side (7), where the active circuit device (2, 2??) is mounted to the first main side (6). The cavity resonator (4, 4?) is positioned on the second main side (7). The oscillator device (1) further comprises at least one excitation via connection (8) that runs through the circuit board (3) and electrically connects the active circuit device (2, 2??) to an excitation structure (9) inside the cavity resonator (4, 4?).
    Type: Application
    Filed: December 16, 2019
    Publication date: January 12, 2023
    Inventors: Mikael Hörberg, Jan Sandberg, Daniel Sjöberg, Niklas Lidström
  • Patent number: 11063647
    Abstract: The present disclosure relates to a device (140) adapted for aligning a first directive antenna (101) in an alignment direction D1 towards a second antenna (102). The device is adapted to acquire measurement data regarding: ?—a first signal power (301) received from the second antenna (102) using a first effective antenna aperture (202) when the first directive antenna (101) is moved along an angular span (306) passing a desired alignment angle (307) along a certain direction (111, 112); and ?—a second signal power (302) received from the second antenna (102) using a second effective antenna aperture (203) when the first directive antenna (101) is moved along an angular span (306) passing a desired alignment angle (307) along a certain direction, the second effective antenna aperture (203) being smaller than the first effective antenna aperture (202).
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: July 13, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Ligander, Martin Johansson, Jan Sandberg, Daniel Sjöberg
  • Publication number: 20200395986
    Abstract: The present disclosure relates to a device (140) adapted for aligning a first directive antenna (101) in an alignment direction D1 towards a second antenna (102). The device is adapted to acquire measurement data regarding: ?—a first signal power (301) received from the second antenna (102) using a first effective antenna aperture (202) when the first directive antenna (101) is moved along an angular span (306) passing a desired alignment angle (307) along a certain direction (111, 112); and?—a second signal power (302) received from the second antenna (102) using a second effective antenna aperture (203) when the first directive antenna (101) is moved along an angular span (306) passing a desired alignment angle (307) along a certain direction, the second effective antenna aperture (203) being smaller than the first effective antenna aperture (202).
    Type: Application
    Filed: March 15, 2018
    Publication date: December 17, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Ligander, Martin Johansson, Jan Sandberg, Daniel Sjöberg