EP 2270923 A1 20110105 - CALIBRATION METHOD AND ACTIVE ANTENNA
Title (en)
CALIBRATION METHOD AND ACTIVE ANTENNA
Title (de)
KALIBRATIONSVERFAHREN UND AKTIVANTENNE
Title (fr)
PROCÉDÉ D'ÉTALONNAGE ET ANTENNE ACTIVE
Publication
Application
Priority
CN 2009071412 W 20090422
Abstract (en)
A calibration method and an active antenna are provided. The active antenna includes K antenna dipole arrays, 1 st to K th transceiver unit arrays corresponding to the antenna dipole arrays, 1 st to K th calibrators, a feature difference calculating unit, and baseband processing modules. The 1 st to K th calibrators are configured to obtain P feature difference values between P calibration signals passing through all calibration loops of the active antenna and an original calibration signal. The feature difference calculating unit is configured to calculate a feature difference value of a receiving channel and/or transmitting channel of each transceiver unit relative to a reference receiving channel and/or transmitting channel respectively. Each baseband processing module is configured to perform feature compensation on a service signal of the corresponding transceiver unit in a digital domain. Therefore, feature differences between all transceivers respectively disposed on a plurality of boards of the transceiver arrays can be calculated, so as to realize accurate calibration on transceiver arrays when the transceiver arrays are distributed on a plurality of boards.
IPC 8 full level
H01Q 3/26 (2006.01); H01Q 1/24 (2006.01); H01Q 21/06 (2006.01); H01Q 21/24 (2006.01)
CPC (source: EP)
H01Q 1/246 (2013.01); H01Q 3/267 (2013.01); H01Q 21/062 (2013.01); H01Q 21/24 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2270923 A1 20110105; EP 2270923 A4 20120801; EP 2270923 B1 20130417; CN 102326293 A 20120118; CN 102326293 B 20130807; ES 2415131 T3 20130724; WO 2010121425 A1 20101028
DOCDB simple family (application)
EP 09839841 A 20090422; CN 2009071412 W 20090422; CN 200980156434 A 20090422; ES 09839841 T 20090422