公开(公告)号：EP2097945A4

公开(公告)日：2010-01-20

申请号：EP06835968

申请日：2006-12-21

Applicant: ERICSSON TELEFON AB L M

Inventor： LIGANDER PER ,  JOSEFSSON LARS ,  SVENSSON BENGT

IPC: H01P5/107 ,  H01P3/12 ,  H01Q21/00 ,  H05K1/02 ,  H05K1/18

CPC classification number: H01P1/161 ,  H01P5/107

公开(公告)号：AU7471601A

公开(公告)日：2002-01-08

申请号：AU7471601

申请日：2001-06-07

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANNISSON BJORN ,  DERNERYD ANDERS ,  JOSEFSSON LARS

IPC: H01Q1/24 ,  H01Q3/40 ,  H04B7/04 ,  H04B7/02

Abstract: The present invention relates to an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means for transmitting and receiving signals to/from a number of user stations. A feeding network is provided which comprises a number of phase ports, a number of which form first phase ports connected to a number of transceiver means for downlink communication and a number of which form second phase ports connected to a number of transceiver means for uplink communication. The feeding network comprises a number of antenna ports connected to antenna elements and the feeding network generates substantially independent, orthogonal signals to provide for phase diversity and the antenna elements are arranged to form at least one cylindrical array antenna. The invention also relates to a method of providing communication between an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means and a number of user stations as well as to a method of providing for at least phase diversity transmission at an omnidirectional base station antenna arrangement.

公开(公告)号：AT490572T

公开(公告)日：2010-12-15

申请号：AT01941356

申请日：2001-06-07

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANNISSON BJOERN ,  DERNERYD ANDERS ,  JOSEFSSON LARS

IPC: H01Q3/40 ,  H01Q1/24 ,  H04B7/02 ,  H04B7/04

Abstract: The present invention relates to an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means for transmitting and receiving signals to/from a number of user stations. A feeding network is provided which comprises a number of phase ports, a number of which form first phase ports connected to a number of transceiver means for downlink communication and a number of which form second phase ports connected to a number of transceiver means for uplink communication. The feeding network comprises a number of antenna ports connected to antenna elements and the feeding network generates substantially independent, orthogonal signals to provide for phase diversity and the antenna elements are arranged to form at least one cylindrical array antenna. The invention also relates to a method of providing communication between an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means and a number of user stations as well as to a method of providing for at least phase diversity transmission at an omnidirectional base station antenna arrangement.

公开(公告)号：AU2002353684A1

公开(公告)日：2004-05-13

申请号：AU2002353684

申请日：2002-10-24

Applicant: ERICSSON TELEFON AB L M

Inventor： JOSEFSSON LARS

IPC: G01S7/38

公开(公告)号：AU2002353683A1

公开(公告)日：2004-05-13

申请号：AU2002353683

申请日：2002-10-24

Applicant: ERICSSON TELEFON AB L M

Inventor： THORS BJORN ,  JOSEFSSON LARS

IPC: G01S7/03 ,  H01Q9/04 ,  H01Q13/06 ,  H01Q17/00 ,  H01Q23/00 ,  G01S7/38

Abstract: A method and an antenna arrangement are disclosed for reducing the antenna radar cross section for an externally illuminating radar source. A radar pulse is transmitted with the antenna arrangement fully matched to achieve a lowest possible power loss of the pulse. At all other times the antenna will be poorly matched and thereby will act as a low radar cross section. The reduced radar cross section leads to an antenna gain reduction, which most often can be accepted since competing noise is reduced as much as the useful signal. It is further suggested that the range gate of the receiver and the transmitter pulse control the antenna. Thus, the antenna is "fully opened" during the transmitting pulse and may be partly or "trade-off" matched during range gate reception. In the interval of not transmitting or receiving, the antenna will present a low radar cross section.

公开(公告)号：DE60143579D1

公开(公告)日：2011-01-13

申请号：DE60143579

申请日：2001-06-07

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANNISSON BJOERN ,  DERNERYD ANDERS ,  JOSEFSSON LARS

IPC: H01Q3/40 ,  H01Q1/24 ,  H04B7/02 ,  H04B7/04

公开(公告)号：SE521761C2

公开(公告)日：2003-12-02

申请号：SE0002371

申请日：2000-06-26

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANNISSON BJOERN ,  JOSEFSSON LARS ,  DERNERYD ANDERS

IPC: H01Q1/24 ,  H01Q3/40 ,  H04B7/04 ,  H04B7/02

Abstract: The present invention relates to an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means for transmitting and receiving signals to/from a number of user stations. A feeding network is provided which comprises a number of phase ports, a number of which form first phase ports connected to a number of transceiver means for downlink communication and a number of which form second phase ports connected to a number of transceiver means for uplink communication. The feeding network comprises a number of antenna ports connected to antenna elements and the feeding network generates substantially independent, orthogonal signals to provide for phase diversity and the antenna elements are arranged to form at least one cylindrical array antenna. The invention also relates to a method of providing communication between an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means and a number of user stations as well as to a method of providing for at least phase diversity transmission at an omnidirectional base station antenna arrangement.

公开(公告)号：SE0002371D0

公开(公告)日：2000-06-26

申请号：SE0002371

申请日：2000-06-26

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANNISSON BJOERN ,  JOSEFSSON LARS ,  DERNERYD ANDERS

IPC: H01Q1/24 ,  H01Q3/40 ,  H04B7/04 ,  H04B

Abstract: The present invention relates to an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means for transmitting and receiving signals to/from a number of user stations. A feeding network is provided which comprises a number of phase ports, a number of which form first phase ports connected to a number of transceiver means for downlink communication and a number of which form second phase ports connected to a number of transceiver means for uplink communication. The feeding network comprises a number of antenna ports connected to antenna elements and the feeding network generates substantially independent, orthogonal signals to provide for phase diversity and the antenna elements are arranged to form at least one cylindrical array antenna. The invention also relates to a method of providing communication between an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means and a number of user stations as well as to a method of providing for at least phase diversity transmission at an omnidirectional base station antenna arrangement.

公开(公告)号：SE0002371L

公开(公告)日：2001-12-27

申请号：SE0002371

申请日：2000-06-26

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANNISSON BJOERN ,  JOSEFSSON LARS ,  DERNERYD ANDERS

IPC: H01Q1/24 ,  H01Q3/40 ,  H04B7/04 ,  H04B7/02

Abstract: The present invention relates to an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means for transmitting and receiving signals to/from a number of user stations. A feeding network is provided which comprises a number of phase ports, a number of which form first phase ports connected to a number of transceiver means for downlink communication and a number of which form second phase ports connected to a number of transceiver means for uplink communication. The feeding network comprises a number of antenna ports connected to antenna elements and the feeding network generates substantially independent, orthogonal signals to provide for phase diversity and the antenna elements are arranged to form at least one cylindrical array antenna. The invention also relates to a method of providing communication between an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means and a number of user stations as well as to a method of providing for at least phase diversity transmission at an omnidirectional base station antenna arrangement.