Patents Assigned to Cellmax Technologies AB
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Patent number: 11855330Abstract: 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: GrantFiled: December 13, 2021Date of Patent: December 26, 2023Assignee: CELLMAX TECHNOLOGIES ABInventors: Alf Ahlström, Anders Edquist
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Patent number: 11848498Abstract: 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: GrantFiled: April 4, 2022Date of Patent: December 19, 2023Assignee: CELLMAX TECHNOLOGIES ABInventors: Alf Ahlström, Anders Edquist
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Patent number: 11165166Abstract: 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 slidably movably arranged inside the outer conductor. The rail element is longitudinally movable in relation to at least the outer conductor.Type: GrantFiled: February 21, 2020Date of Patent: November 2, 2021Assignee: CELLMAX TECHNOLOGIES ABInventors: Niclas J. Yman, Dan Karlsson, Stefan Jonsson
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Patent number: 11050161Abstract: 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: GrantFiled: September 15, 2016Date of Patent: June 29, 2021Assignee: Cellmax Technologies ABInventors: Niclas J. Yman, Stefan Jonsson, Dan Karlsson
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Patent number: 11018424Abstract: 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: GrantFiled: February 2, 2017Date of Patent: May 25, 2021Assignee: Cellmax Technologies ABInventor: Niclas Yman
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Patent number: 10862221Abstract: An antenna feeding network for a multi radiator antenna is provided. The antenna feeding network comprises at least one coaxial line. Each coaxial line comprises a central inner conductor and an elongated outer conductor surrounding the central inner conductor, wherein at least one of the outer conductors of the coaxial lines is provided with an opening, wherein the antenna feeding network further comprises at least one nonconductive holding element configured to be placed in the opening. The holding element is configured to hold at least one of the inner conductors in position. The invention further relates to a multi radiator antenna comprising such an antenna feeding network, and to a method for providing an electrical connection in such an antenna feeding network.Type: GrantFiled: September 15, 2016Date of Patent: December 8, 2020Assignee: CELLMAX TECHNOLOGIES ABInventors: Niclas J. Yman, Stefan Jonsson, Dan Karlsson, Andreas Nordström
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Patent number: 10826191Abstract: 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 feeding 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 feeding 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 feeding lines.Type: GrantFiled: August 12, 2019Date of Patent: November 3, 2020Assignee: CELLMAX TECHNOLOGIES ABInventors: Dan Karlsson, Niclas Yman, Stefan Jonsson
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Patent number: 10573971Abstract: 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 slidably movably arranged inside the outer conductor. The rail element is longitudinally movable in relation to at least the outer conductor.Type: GrantFiled: August 19, 2019Date of Patent: February 25, 2020Assignee: CELLMAX TECHNOLOGIES ABInventors: Niclas J. Yman, Dan Karlsson, Stefan Jonsson
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Patent number: 10424843Abstract: 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: GrantFiled: September 15, 2016Date of Patent: September 24, 2019Assignee: CELLMAX TECHNOLOGIES ABInventors: Niclas J. Yman, Dan Karlsson, Stefan Jonsson
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Patent number: 10389040Abstract: 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: GrantFiled: June 9, 2017Date of Patent: August 20, 2019Assignee: Cellmax Technologies ABInventor: Dan Karlsson
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Patent number: 10389039Abstract: 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: GrantFiled: September 15, 2016Date of Patent: August 20, 2019Assignee: Cellmax Technologies ABInventors: Niclas J. Yman, Dan Karlsson
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Patent number: 10381740Abstract: 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: GrantFiled: February 2, 2017Date of Patent: August 13, 2019Assignee: Cellmax Technologies ABInventors: Dan Karlsson, Niclas Yman, Stefan Jonsson
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Publication number: 20190051960Abstract: 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: ApplicationFiled: June 9, 2017Publication date: February 14, 2019Applicant: Cellmax Technologies ABInventor: Dan KARLSSON
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Publication number: 20190051961Abstract: 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: ApplicationFiled: February 2, 2017Publication date: February 14, 2019Applicant: Cellmax Technologies ABInventors: Dan KARLSSON, Niclas YMAN, Stefan JONSSON
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Publication number: 20180277958Abstract: 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: ApplicationFiled: September 15, 2016Publication date: September 27, 2018Applicant: Cellmax Technologies ABInventors: Niclas J. YMAN, Dan KARLSSON, Stefan JONSSON
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Patent number: 9941597Abstract: 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: GrantFiled: February 3, 2015Date of Patent: April 10, 2018Assignee: Cellmax Technologies ABInventors: Stefan Jonsson, Dan Karlsson
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Patent number: 9761949Abstract: 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: GrantFiled: January 28, 2013Date of Patent: September 12, 2017Assignee: CELLMAX TECHNOLOGIES ABInventors: Greger Lenart, Jens Malmgren
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Patent number: 9531082Abstract: (EN)Antenna arrangement comprising at least two discrete antennas (1, 2) mechanically attached to each other to forma combined base station antenna (6), wherein at least two discrete antennas (1, 2) in said combined base station antenna (6) are located alongside each other, wherein a conducting element (10) is arranged between the alongside each other located discrete antennas (1, 2).Type: GrantFiled: June 21, 2011Date of Patent: December 27, 2016Assignee: CELLMAX TECHNOLOGIES ABInventors: Stephan Jonsson, Dan Karlsson, Gregor Lenart, Pontus Forsman
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Publication number: 20150372397Abstract: An antenna arrangement for mobile communication, the antenna arrangement comprising a plurality of radiators (202, 203) for at least two different frequency bands, the plurality of radiators being placed on a reflector (204), wherein the plurality of radiators comprises a first group of radiators arranged to operate in a first frequency band of the at least two different frequency bands, wherein the plurality of radiators comprises a second group of radiators arranged to operate in a second frequency band of the at least two different frequency bands, the first group of radiators forming a first antenna, the second group of radiators forming a second antenna, wherein the radiators are cross-polarized, wherein the radiators (203) of the first group are of cross-type, and wherein the radiators (202) of the second group are of four-leaf type.Type: ApplicationFiled: January 16, 2014Publication date: December 24, 2015Applicant: CELLMAX TECHNOLOGIES ABInventors: Stefan JONSSON, Dan KARLSSON
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Publication number: 20150372382Abstract: An antenna arrangement for mobile communication, the antenna arrangement comprising a plurality of radiators (202, 203) for at least two different frequency bands, the plurality of radiators being placed on a reflector (204), wherein the plurality of radiators comprises a first group of radiators arranged to operate in a first frequency band of the at least two different frequency bands, wherein the plurality of radiators comprises a second group of radiators arranged to operate in a second frequency band of the at least two different frequency bands, the first group of radiators forming a first antenna, the second group of radiators forming a second antenna, wherein the radiators of the first group have the same antenna aperture, e.g. the same antenna aperture length, as the radiators of the second group.Type: ApplicationFiled: January 16, 2014Publication date: December 24, 2015Applicant: CELLMAX TECHNOLOGIES ABInventor: Gregor LENART