SE9804091D0 - Calibration method for phased array antenna - Google Patents

Calibration method for phased array antenna

Info

Publication number
SE9804091D0
SE9804091D0 SE9804091A SE9804091A SE9804091D0 SE 9804091 D0 SE9804091 D0 SE 9804091D0 SE 9804091 A SE9804091 A SE 9804091A SE 9804091 A SE9804091 A SE 9804091A SE 9804091 D0 SE9804091 D0 SE 9804091D0
Authority
SE
Sweden
Prior art keywords
paths
signals
injected
phased array
array
Prior art date
Application number
SE9804091A
Other languages
Swedish (sv)
Other versions
SE9804091L (en
SE513340C2 (en
Inventor
Magnus Sundberg
Original Assignee
Radio Design Innovation Tj Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Radio Design Innovation Tj Ab filed Critical Radio Design Innovation Tj Ab
Priority to SE9804091A priority Critical patent/SE513340C2/en
Publication of SE9804091D0 publication Critical patent/SE9804091D0/en
Priority to GB9927003A priority patent/GB2346013A/en
Publication of SE9804091L publication Critical patent/SE9804091L/en
Publication of SE513340C2 publication Critical patent/SE513340C2/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/267—Phased-array testing or checking devices

Abstract

A method of calibrating a phased array, having a number of signal paths (1 to 8) corresponding to the antennae of the array, comprises injecting a constant reference signal into one of the signal paths and then injecting calibration signals into the other paths and measuring the resultant signals in these paths. To calibrate the array the transfer function of the reference path is set to a predetermined value (Adj) and the transfer paths of the other paths are adjusted so that the same phase and amplitude relations exists between the reference path and each of the other paths. Preferably the paths of the phased array are connected at their feed ends to a lode shaping network (LSN) and the reference and calibration signals are injected by an adjustment unit (Cal.) having variable phase and amplitude adjustment. The signals may be injected into the paths either near the lode shaping network B, adjacent the antennae A or may be injected into the paths via remote radio coupling to the antenna C and the measurement of the resultant signals may also occur at any of these three locations. Preferably the calibration is improved by iterating the steps of the above method using different signal paths as the reference path and averaging over the resulting transfer functions.
SE9804091A 1998-11-27 1998-11-27 Calibration method for phase controlled group antenna SE513340C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9804091A SE513340C2 (en) 1998-11-27 1998-11-27 Calibration method for phase controlled group antenna
GB9927003A GB2346013A (en) 1998-11-27 1999-11-15 Calibration method for a phased array

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804091A SE513340C2 (en) 1998-11-27 1998-11-27 Calibration method for phase controlled group antenna

Publications (3)

Publication Number Publication Date
SE9804091D0 true SE9804091D0 (en) 1998-11-27
SE9804091L SE9804091L (en) 2000-05-28
SE513340C2 SE513340C2 (en) 2000-08-28

Family

ID=20413451

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9804091A SE513340C2 (en) 1998-11-27 1998-11-27 Calibration method for phase controlled group antenna

Country Status (2)

Country Link
GB (1) GB2346013A (en)
SE (1) SE513340C2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19943952B4 (en) 1999-09-14 2010-04-08 Robert Bosch Gmbh Method for calibrating a group antenna
GB2387030A (en) * 2002-03-26 2003-10-01 Thales Plc Compensation of mutual coupling in array antenna systems
US20060240784A1 (en) * 2005-04-22 2006-10-26 Qualcomm Incorporated Antenna array calibration for wireless communication systems
US8498669B2 (en) 2005-06-16 2013-07-30 Qualcomm Incorporated Antenna array calibration for wireless communication systems
US9118111B2 (en) 2005-11-02 2015-08-25 Qualcomm Incorporated Antenna array calibration for wireless communication systems
US8280430B2 (en) 2005-11-02 2012-10-02 Qualcomm Incorporated Antenna array calibration for multi-input multi-output wireless communication systems
GB2456007B (en) * 2007-12-31 2012-10-17 Nortel Networks Ltd Method for channel calibration
US9866336B2 (en) 2015-06-17 2018-01-09 Google Llc Phased array antenna self-calibration
EP3317920A1 (en) * 2015-07-01 2018-05-09 Telefonaktiebolaget LM Ericsson (PUBL) Technique for calibrating an antenna array
US10944490B2 (en) 2016-12-23 2021-03-09 Telefonsktiebolsget LM Ericsson (Publ) Antenna calibration for multiple input multiple output

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171849A (en) * 1985-02-25 1986-09-03 Secr Defence Improvements in or relating to the alignment of phased array antenna systems
CN1078390C (en) * 1994-06-03 2002-01-23 艾利森电话股份有限公司 Antenna array calibration
CA2180051C (en) * 1995-07-07 2005-04-26 Seth David Silverstein Method and apparatus for remotely calibrating a phased array system used for satellite communication
US5657023A (en) * 1996-05-02 1997-08-12 Hughes Electronics Self-phase up of array antennas with non-uniform element mutual coupling and arbitrary lattice orientation

Also Published As

Publication number Publication date
GB2346013A (en) 2000-07-26
SE9804091L (en) 2000-05-28
SE513340C2 (en) 2000-08-28
GB9927003D0 (en) 2000-01-12

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Legal Events

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