Patents by Inventor Alf AHLSTRÖM

Alf AHLSTRÖM 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).

  • Patent number: 11855330
    Abstract: A reflector for a multi-radiator antenna which comprises electrically conducting reflector parts and one or more connector device. At least two reflector parts are each provided with at least one connecting portion. At least one connector device is adapted to provide an electrical interconnection between at least two of the reflector parts. At least one connector device comprises a metallic film and one or more holding elements. The metallic film is adapted to be arranged in abutment with connecting portions of the at least two of the reflector parts to achieve the electrical interconnection. At least one of the holding elements has at least one holding portion adapted to connect to a connecting portion of a reflector part with said metallic film sandwiched therebetween.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: December 26, 2023
    Assignee: CELLMAX TECHNOLOGIES AB
    Inventors: Alf Ahlström, Anders Edquist
  • Patent number: 11848498
    Abstract: Filter arrangement comprising an inner electric conductor comprising at least one inner conductor segment, an outer electric conductor at least partly surrounding the inner conductor, at least one dielectric element and at least one coil spring. The at least one dielectric element is arranged sandwiched between at least one inner conductor segment and the outer conductor to form a capacitance between the outer conductor and the inner conductor segment. The at least one coil spring is arranged inside said outer conductor to force the inner conductor segment and the at least one dielectric element against the outer conductor. The at least one coil spring is made from an electrically conducting material to form an inductance and is electrically connected with the inner conductor segment. An antenna feeding network and a multi-radiator antenna comprising such a filter arrangement is also provided.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: December 19, 2023
    Assignee: CELLMAX TECHNOLOGIES AB
    Inventors: Alf Ahlström, Anders Edquist
  • Publication number: 20230318201
    Abstract: Filter arrangement comprising an inner electric conductor comprising at least one inner conductor segment, an outer electric conductor at least partly surrounding the inner conductor, at least one dielectric element and at least one coil spring. The at least one dielectric element is arranged sandwiched between at least one inner conductor segment and the outer conductor to form a capacitance between the outer conductor and the inner conductor segment. The at least one coil spring is arranged inside said outer conductor to force the inner conductor segment and the at least one dielectric element against the outer conductor. The at least one coil spring is made from an electrically conducting material to form an inductance and is electrically connected with the inner conductor segment. An antenna feeding network and a multi-radiator antenna comprising such a filter arrangement is also provided.
    Type: Application
    Filed: April 4, 2022
    Publication date: October 5, 2023
    Inventors: Alf Ahlström, Anders Edquist
  • Publication number: 20230170623
    Abstract: A reflector for a multi-radiator antenna which comprises electrically conducting reflector parts and one or more connector device. At least two reflector parts are each provided with at least one connecting portion. At least one connector device is adapted to provide an electrical interconnection between at least two of the reflector parts. At least one connector device comprises a metallic film and one or more holding elements. The metallic film is adapted to be arranged in abutment with connecting portions of the at least two of the reflector parts to achieve the electrical interconnection. At least one of the holding elements has at least one holding portion adapted to connect to a connecting portion of a reflector part with said metallic film sandwiched therebetween.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 1, 2023
    Inventors: Alf Ahlström, Anders Edquist
  • Patent number: 10886609
    Abstract: An antenna arrangement is described which comprises an electrical conductor extending along an axis, a first electrically conductive disc in contact with the electrical conductor and extending perpendicularly from the axis, a second electrically conductive disc in contact with the conductor and extending perpendicularly from the axis. The antenna arrangement also comprises an electrically conductive housing enclosing, circumferentially around the axis, the electrical conductor, the first electrically conductive disc and the second electrically conductive disc, feeding means configured to feed electromagnetic energy to the first electrically conductive disc, transmitting means configured to transmit electromagnetic energy from the second electrically conductive disc, and a third electrically conductive disc in contact with the conductor and extending perpendicularly from the axis between the first electrically conductive disc and the second electrically conductive disc at a distance therefrom.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: January 5, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Vlad Lenive, Alf Ahlström
  • Publication number: 20190148827
    Abstract: An antenna arrangement is described which comprises an electrical conductor extending along an axis, a first electrically conductive disc in contact with the electrical conductor and extending perpendicularly from the axis, a second electrically conductive disc in contact with the conductor and extending perpendicularly from the axis. The antenna arrangement also comprises an electrically conductive housing enclosing, circumferentially around the axis, the electrical conductor, the first electrically conductive disc and the second electrically conductive disc, feeding means configured to feed electromagnetic energy to the first electrically conductive disc, transmitting means configured to transmit electromagnetic energy from the second electrically conductive disc, and a third electrically conductive disc in contact with the conductor and extending perpendicularly from the axis between the first electrically conductive disc and the second electrically conductive disc at a distance therefrom.
    Type: Application
    Filed: October 25, 2018
    Publication date: May 16, 2019
    Inventors: Vlad LENIVE, Alf AHLSTRÖM