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公开(公告)号：AU1317801A
公开(公告)日：2001-05-08
申请号：AU1317801
申请日：2000-10-20
Applicant: ERICSSON TELEFON AB L M
Inventor： DERNERYD ANDERS , JOHANNISON BJORN , JOHANSSON MARTIN
Abstract: A dual-polarized antenna (10) with good isolation between feed ports (13a, 13b) and high similarity with respect to the radiation patterns is provided. An antenna (10) includes a patch (11), four symmetrically arranged feed structures (12a-12d, 15), two feed ports (13, 13b) and a feed network (14). Radiation pattern similarity is obtained by the pair-wise symmetrical, orthogonal layout of the feed structures (12a-12d, 15). Good isolation between feed ports (13a, 13b) is achieved through a feed network (14) divided into two network parts (14a, 14b) where each network part (14a, 14b) is designed so that each coupling between a network part (14a, 14b) and a feed structure (12a12d, 15) belonging to the other polarization is cancelled by a mirrored coupling with the other feed structure (12a-12d, 15) belonging to the polarization. In addition, a network part (14a, 14b) is laid out so that its corresponding feed structures (12a-12d, 15) are fed with supporting signals of equal magnitude.
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公开(公告)号：SE9903920D0
公开(公告)日：1999-10-29
申请号：SE9903920
申请日：1999-10-29
Applicant: ERICSSON TELEFON AB L M
Inventor： JOHANNISSON BJOERN , DERNERYD ANDERS , JOHANSSON MARTIN
Abstract: A dual-polarized antenna (10) with good isolation between feed ports (13a, 13b) and high similarity with respect to the radiation patterns is provided. An antenna (10) includes a patch (11), four symmetrically arranged feed structures (12a-12d, 15), two feed ports (13, 13b) and a feed network (14). Radiation pattern similarity is obtained by the pair-wise symmetrical, orthogonal layout of the feed structures (12a-12d, 15). Good isolation between feed ports (13a, 13b) is achieved through a feed network (14) divided into two network parts (14a, 14b) where each network part (14a, 14b) is designed so that each coupling between a network part (14a, 14b) and a feed structure (12a12d, 15) belonging to the other polarization is cancelled by a mirrored coupling with the other feed structure (12a-12d, 15) belonging to the polarization. In addition, a network part (14a, 14b) is laid out so that its corresponding feed structures (12a-12d, 15) are fed with supporting signals of equal magnitude.
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公开(公告)号：SE510995C2
公开(公告)日：1999-07-19
申请号：SE9701079
申请日：1997-03-24
Applicant: ERICSSON TELEFON AB L M
Inventor： DERNERYD ANDERS , LOOSTROEM LARS
Abstract: The present invention discloses an antenna device and system design forming a modular common antenna surface having various surface portions for transmission and reception as well as integrated transmission and reception within the same common antenna surface, the various surface portions either forming passive or active arrays for transmission or reception. Additionally superimposed surface portions of the modular common antenna surface constitute individual transmit and receive array portions, respectively, sharing the total aperture, the modular common antenna surface producing at least one polarization plane for transmission and generally two orthogonal polarization planes for reception to achieve polarization diversity for the reception. Further the antenna surface of the device and system according to the invention generally form a microstrip module array containing a number of radiation element for transmission and/or reception, and consist of one or several columns of individual element forming the antenna aperture, the column and/or columns additionally in the preferred arrangement having integrated power amplifiers and/or low noise amplifiers (LNA:s), respectively.
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公开(公告)号：SE9701848L
公开(公告)日：1998-11-17
申请号：SE9701848
申请日：1997-05-16
Applicant: ERICSSON TELEFON AB L M
Inventor： DERNERYD ANDERS , SCHEFTE HENRY , REINEFJORD STAFFAN
Abstract: An antenna system (100) at a mobile communication station (150) comprises a main unit (101) which comprises at least one network antenna (102), a relay antenna (103) for communication with the mobile station (150) and an interface unit (104) connected to the network antenna (102) and the relay antenna (103). The antenna system (100) also comprises a local antenna (105) in the mobile communication station (150) for communication with the relay antenna (103) in the main unit (101). The main unit (101) is attachable to and detachable from the mobile communication station (150), while at the same time the relay antenna (103) and the local antenna (105) lack galvanic contact. In an attached state, the relay antenna (103) and the local antenna (105) are electrically connected to each other by means of a capacitive connection, and in a detached state, the relay antenna (103) and the local antenna (105) are electrically connected to each other by an electric far-field connection.
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公开(公告)号：SE9701848D0
公开(公告)日：1997-05-16
申请号：SE9701848
申请日：1997-05-16
Applicant: ERICSSON TELEFON AB L M
Inventor： DERNERYD ANDERS , SCHEFTE HENRY , REINEFJORD STAFFAN
Abstract: An antenna system (100) at a mobile communication station (150) comprises a main unit (101) which comprises at least one network antenna (102), a relay antenna (103) for communication with the mobile station (150) and an interface unit (104) connected to the network antenna (102) and the relay antenna (103). The antenna system (100) also comprises a local antenna (105) in the mobile communication station (150) for communication with the relay antenna (103) in the main unit (101). The main unit (101) is attachable to and detachable from the mobile communication station (150), while at the same time the relay antenna (103) and the local antenna (105) lack galvanic contact. In an attached state, the relay antenna (103) and the local antenna (105) are electrically connected to each other by means of a capacitive connection, and in a detached state, the relay antenna (103) and the local antenna (105) are electrically connected to each other by an electric far-field connection.
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Patent Agency Ranking
公开(公告)号：SG189459A1
公开(公告)日：2013-05-31
申请号：SG2013029483
申请日：2010-11-29
Applicant: ERICSSON TELEFON AB L M
Inventor： ASPLUND HENRIK , DERNERYD ANDERS , MEDBO JONAS
Abstract: An antenna arrangement comprising at least a first and a second elongated structure, e.g., a coaxial cable, for guiding an electromagnetic wave is provided. Each of said structures comprises a plurality of radiation elements. The structures are positioned alongside each other in their longitudinal direction of extension forming a bundle. The elongated structures are arranged within the bundle such that the radial positions of said structures are alternated in the longitudinal direction of extension.
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公开(公告)号：CA2587569C
公开(公告)日：2013-01-29
申请号：CA2587569
申请日：2004-12-13
Applicant: ERICSSON TELEFON AB L M
Inventor： DERNERYD ANDERS , PETERSSON SVEN , JOHANSSON STEFAN , JOHANSSON MARTIN N
IPC: H01Q21/00
Abstract: The present invention relates to an antenna arrangement (100) comprising an antenna section, said antenna section comprising a number of radiating elements which may be arranged in arrays or sub-arrays. It further comprises at least one further antenna section, said at least two antenna sections (101,102,103) being mounted substantially along a straight line, a non-straight line or irregularly at a mounting structure (40). It comprises a feeding network arrangement (20) for feeding said at least two antenna sections (101,102,103), with feeding network control means for controlling the feeding of the antenna sections (101r 102, 103) allowing for beam forming control.
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公开(公告)号：DE19882434B4
公开(公告)日：2007-11-29
申请号：DE19882434
申请日：1998-04-29
Applicant: ERICSSON TELEFON AB L M
Inventor： LOOSTROEM LARS , DERNERYD ANDERS
Abstract: A method and system of merging signals feeding the antenna elements by using a combiner network and to create an antenna reference point representing the signal representation in the air. This merged signal will be easily accessed for measurement purposes. An additional signal combiner connected to the output terminals of the distributed power amplifier modules of the active antenna creates a measured virtual antenna reference point which may be utilized in testing and typing active antennas having distributed electronics for a certification according to standards for GSM, PDC and DCS. The corresponding method for measuring active receive antennas is also disclosed. Also discloses a measurement system for application of the new method of obtaining a virtual transmit or receive antenna.
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公开(公告)号：DE69832592T2
公开(公告)日：2006-08-10
申请号：DE69832592
申请日：1998-02-17
Applicant: ERICSSON TELEFON AB L M
Inventor： DERNERYD ANDERS
Abstract: An antenna unit transmit and receives radio signals having two different polarizations. The antenna unit includes a slot integrated in a microstrip element and an aperture integrated in a conductive surface on the microstrip element. The aperture is arranged in the conductive surface parallel to its polarization direction. The slot is arranged in an underlying layer directly below the aperture. The conductive surface of the microstrip element is arranged to transmit or receive with a vertical polarization and a first horizontal beam width. The slot is arranged to transmit or receive with a horizontal polarization and a second horizontal beam width. The second beam width is substantially equal to the first beam width. The antenna unit is very compact and light and only causes low power losses. A number of antenna units can be used to design sector antennas or antenna arrays.
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公开(公告)号：CA2587569A1
公开(公告)日：2006-06-22
申请号：CA2587569
申请日：2004-12-13
Applicant: ERICSSON TELEFON AB L M
Inventor： DERNERYD ANDERS , PETERSSON SVEN , JOHANSSON STEFAN , JOHANSSON MARTIN N
IPC: H01Q21/00
Abstract: The present invention relates to an antenna arrangement (100) comprising an antenna section, said antenna section comprising a number of radiating elements which may be arranged in arrays or sub-arrays. It further comprises at least one further antenna section, said at least two antenna sections (101,102,103) being mounted substantially along a straight line, a non-straight line or irregularly at a mounting structure (40). It comprises a feeding network arrangement (20) for feeding said at least two antenna sections (101,102,103), with feeding network control means for controlling the feeding of the antenna sections (101r 102, 103) allowing for beam forming control.
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