Patents Assigned to Cellmax Technologies AB
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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: 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: 8957828Abstract: 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: GrantFiled: September 19, 2008Date of Patent: February 17, 2015Assignee: Cellmax Technologies ABInventors: Stefan Jonsson, Dan Karlsson
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Patent number: 8947316Abstract: 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: June 14, 2013Date of Patent: February 3, 2015Assignee: Cellmax Technologies ABInventors: Stefan Jonsson, Dan Karlsson
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Patent number: 8576137Abstract: 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: September 19, 2008Date of Patent: November 5, 2013Assignee: Cellmax Technologies ABInventors: Stefan Jonsson, Dan Karlsson
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Patent number: 8416143Abstract: 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: November 9, 2010Date of Patent: April 9, 2013Assignee: Cellmax Technologies ABInventors: Greger Lenart, Jens Malmgren
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Patent number: 7830328Abstract: 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: GrantFiled: November 16, 2009Date of Patent: November 9, 2010Assignee: Cellmax Technologies ABInventors: Greger Lenart, Jens Malmgren
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Publication number: 20100201593Abstract: 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: ApplicationFiled: September 19, 2008Publication date: August 12, 2010Applicant: Cellmax Technologies ABInventors: Stefan Jonsson, Dan Karlsson
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Patent number: 7629944Abstract: 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: GrantFiled: June 29, 2005Date of Patent: December 8, 2009Assignee: Cellmax Technologies ABInventors: Gregor Lenart, Jens Malmgren
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Patent number: 7439927Abstract: 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: GrantFiled: April 15, 2005Date of Patent: October 21, 2008Assignee: Cellmax Technologies ABInventors: Gregor Lenart, Jens Malmgren