Patents Assigned to Cellmax Technologies AB
  • Patent number: 11050161
    Abstract: An antenna feeding network for a multi-radiator antenna, the antenna feeding network comprising at least two coaxial lines. Each coaxial line comprises a central inner conductor and an elongated outer conductor surrounding the central inner conductor. At least a first inner conductor and a second inner conductor of the at least two coaxial lines are indirectly interconnected.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: June 29, 2021
    Assignee: Cellmax Technologies AB
    Inventors: Niclas J. Yman, Stefan Jonsson, Dan Karlsson
  • Patent number: 11018424
    Abstract: A multi radiator antenna comprising an electrically conductive reflector, at least two radiating elements arranged on said reflector, a feeding network connected to the radiating elements, and a protective cover. The feeding network comprises a plurality of conductors for distributing signals to the radiators. The feeding network has means for adjusting relative phases of said signals in order to adjust a direction of the antenna main lobe of said multi-radiator base station antenna. The means for adjusting is provided with, or is connected to, an indicating portion configured to provide a visual indication of said direction. The protective cover is provided with an at least partially transparent wall portion arranged such that said indicating portion is visible there through.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: May 25, 2021
    Assignee: Cellmax Technologies AB
    Inventor: Niclas Yman
  • Patent number: 10389040
    Abstract: An antenna feeding network for a multi-radiator antenna, the antenna feeding network comprising at least two coaxial lines, wherein each coaxial line comprises an elongated central inner conductor and an elongated outer conductor surrounding the central inner conductor. At least one connector device is configured to interconnect at least a first inner conductor and a second inner conductor of the central inner conductors. The connector device comprises at least one engaging portion, each being configured to engage with at least one corresponding surface portion formed on the envelope surface of the first or second inner conductor. The envelope surface is furthermore provided with at least one recess provided adjacent at least one surface portion.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: August 20, 2019
    Assignee: Cellmax Technologies AB
    Inventor: Dan Karlsson
  • Patent number: 10389039
    Abstract: An antenna feeding network for a multi-radiator antenna. The feeding network comprises at least one substantially air filled coaxial line, each comprising a central inner conductor, an elongated outer conductor surrounding the central inner conductor, and an elongated rail element slideably movably arranged inside the outer conductor. The rail element is longitudinally movable in relation to at least the outer conductor.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: August 20, 2019
    Assignee: Cellmax Technologies AB
    Inventors: Niclas J. Yman, Dan Karlsson
  • Patent number: 10381740
    Abstract: An antenna feeding network for a multi-radiator base station antenna and an antenna arrangement comprising such a feeding network is provided. The feeding network comprises substantially air filled coaxial lines and a coaxial connector for an antenna feeder cable, the connector being connected to at least one of the coaxial lines. The substantially air filled coaxial lines each have a central inner conductor and an elongated outer conductor surrounding the central inner conductor. The coaxial connector comprises a body having an attachment portion, the attachment portion being attached to, and arranged in abutment with, a portion of at least one outer conductor such that the body connects electrically and mechanically with the outer conductors of the coaxial lines.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: August 13, 2019
    Assignee: Cellmax Technologies AB
    Inventors: Dan Karlsson, Niclas Yman, Stefan Jonsson
  • Publication number: 20190051960
    Abstract: An antenna feeding network for a multi-radiator antenna, the antenna feeding network comprising at least two coaxial lines, wherein each coaxial line comprises an elongated central inner conductor and an elongated outer conductor surrounding the central inner conductor. At least one connector device is configured to interconnect at least a first inner conductor and a second inner conductor of the central inner conductors. The connector device comprises at least one engaging portion, each being configured to engage with at least one corresponding surface portion formed on the envelope surface of the first or second inner conductor. The envelope surface is furthermore provided with at least one recess provided adjacent at least one surface portion.
    Type: Application
    Filed: June 9, 2017
    Publication date: February 14, 2019
    Applicant: Cellmax Technologies AB
    Inventor: Dan KARLSSON
  • Publication number: 20190051961
    Abstract: An antenna feeding network for a multi-radiator base station antenna and an antenna arrangement comprising such a feeding network is provided. The feeding network comprises substantially air filled coaxial lines and a coaxial connector for an antenna feeder cable, the connector being connected to at least one of the coaxial lines. The substantially air filled coaxial lines each have a central inner conductor and an elongated outer conductor surrounding the central inner conductor. The coaxial connector comprises a body having an attachment portion, the attachment portion being attached to, and arranged in abutment with, a portion of at least one outer conductor such that the body connects electrically and mechanically with the outer conductors of the coaxial lines.
    Type: Application
    Filed: February 2, 2017
    Publication date: February 14, 2019
    Applicant: Cellmax Technologies AB
    Inventors: Dan KARLSSON, Niclas YMAN, Stefan JONSSON
  • Publication number: 20180277958
    Abstract: An antenna arrangement comprising an antenna feeding network, an electrically conductive reflector and at least one radiating element arranged on said reflector is provided. The antenna feeding network comprises at least one substantially air filled coaxial line, each coaxial line comprising a central inner conductor and an elongated outer conductor at least partly surrounding the central inner conductor, wherein at least one radiating element and at least one coaxial line are configured to interconnect indirectly.
    Type: Application
    Filed: September 15, 2016
    Publication date: September 27, 2018
    Applicant: Cellmax Technologies AB
    Inventors: Niclas J. YMAN, Dan KARLSSON, Stefan JONSSON
  • Patent number: 9941597
    Abstract: Antenna arrangement for a multi-radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (1, 2, 3), wherein each coaxial line comprises an outer conductor (8) and an inner conductor (4, 5, 6), wherein an adjustable differential phase shifter including a dielectric part (9) is arranged in the antenna and said dielectric part being movable longitudinally in relation to at least one coaxial line (1, 2, 3).
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: April 10, 2018
    Assignee: Cellmax Technologies AB
    Inventors: Stefan Jonsson, Dan Karlsson
  • Patent number: 8957828
    Abstract: Antenna arrangement for a multi radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (15; 19), wherein the coaxial line being an integrated part of a back side of an antenna reflector (1), and wherein the coaxial line comprises an outer conductor (9) and an inner conductor (7; 14). Two parallel columns of radiators (11) are placed on a front side of the antenna reflector (1), the radiators (11) being fed from said feeding network.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: February 17, 2015
    Assignee: Cellmax Technologies AB
    Inventors: Stefan Jonsson, Dan Karlsson
  • Patent number: 8947316
    Abstract: Antenna arrangement for a multi-radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (1, 2, 3), wherein each coaxial line comprises an outer conductor (8) and an inner conductor (4, 5, 6), wherein an adjustable differential phase shifter including a dielectric part (9) is arranged in the antenna and said dielectric part being movable longitudinally in relation to at least one coaxial line 1, 2, 3).
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: February 3, 2015
    Assignee: Cellmax Technologies AB
    Inventors: Stefan Jonsson, Dan Karlsson
  • Patent number: 8576137
    Abstract: Antenna arrangement for a multi-radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (1, 2, 3), wherein each coaxial line comprises an outer conductor (8) and an inner conductor (4, 5, 6), wherein an adjustable differential phase shifter including a dielectric part (9) is arranged in the antenna and said dielectric part being movable longitudinally in relation to at least one coaxial line (1, 2, 3).
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: November 5, 2013
    Assignee: Cellmax Technologies AB
    Inventors: Stefan Jonsson, Dan Karlsson
  • Patent number: 8416143
    Abstract: An antenna feeding network, including at least one antenna feeding line, each antenna feeding line comprising a coaxial line having a central inner conductor and a surrounding outer conductor. The outer conductor (4) is made of an elongated tubular compartment (5) having an elongated opening (6) along one side of the compartment (5), and that the inner conductor (3) is suspended within the tubular compartment (5) by means of dielectric support means (7).
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: April 9, 2013
    Assignee: Cellmax Technologies AB
    Inventors: Greger Lenart, Jens Malmgren
  • Patent number: 7830328
    Abstract: An antenna feeding network, including at least one antenna feeding line, each antenna feeding line comprising a coaxial line having a central inner conductor and a surrounding outer conductor. Present invention is characterized in that the outer conductor (4) is made of an elongated tubular compartment (5) having an elongated opening (6) along one side of the compartment (5), and that the inner conductor (3) is suspended within the tubular compartment (5) by means of dielectric support means (7).
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: November 9, 2010
    Assignee: Cellmax Technologies AB
    Inventors: Greger Lenart, Jens Malmgren
  • Publication number: 20100201593
    Abstract: Antenna arrangement for a multi radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (15; 19), wherein the coaxial line being an integrated part of a back side of an antenna reflector (1), and wherein the coaxial line comprises an outer conductor (9) and an inner conductor (7; 14). Two parallel columns of radiators (11) are placed on a front side of the antenna reflector (1), the radiators (11) being fed from said feeding network.
    Type: Application
    Filed: September 19, 2008
    Publication date: August 12, 2010
    Applicant: Cellmax Technologies AB
    Inventors: Stefan Jonsson, Dan Karlsson
  • Patent number: 7629944
    Abstract: An antenna (1) comprising a housing containing coaxial lines (10), where each coaxial line comprises a wall as an outer conductor (4) and a center line (2), in parallel with a reflector (3), with a connector (8) connected to the coaxial lines (10), and to antenna feeder cables and being mechanically connected to the antenna. Present invention is characterised in that the coaxial connector (8) is connected to a first end of a separate coaxial cable (7), and that the second end of the separate coaxial cable (7) is connected to the antenna coaxial line (10).
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: December 8, 2009
    Assignee: Cellmax Technologies AB
    Inventors: Gregor Lenart, Jens Malmgren
  • Patent number: 7439927
    Abstract: A broadband dipole including two co-working conductors. The invention is characterized in, that a first of the conductors (11) is comprised of a rod (12) including a substantially centrally located axial hole (2), said hole (2) forming an outer conductor (11) of a coaxial line, and that the second conductor (5) is comprised of a solid rod, and that a metallic wire (5) inserted centrally in the axial hole (2) of the first conductor (11) is connected to the second conductor (5).
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: October 21, 2008
    Assignee: Cellmax Technologies AB
    Inventors: Gregor Lenart, Jens Malmgren