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1. (WO2001031744) METHOD FOR CALIBRATING AN ELECTRONICALLY PHASE-CONTROLLED GROUP ANTENNA IN RADIO-COMMUNICATIONS SYSTEMS

Pub. No.:    WO/2001/031744    International Application No.:    PCT/DE2000/003756
Publication Date: Fri May 04 01:59:59 CEST 2001 International Filing Date: Wed Oct 25 01:59:59 CEST 2000
IPC: H01Q 3/26
Applicants: SIEMENS AKTIENGESELLSCHAFT
SCHLEE, Johannes
Inventors: SCHLEE, Johannes
Title: METHOD FOR CALIBRATING AN ELECTRONICALLY PHASE-CONTROLLED GROUP ANTENNA IN RADIO-COMMUNICATIONS SYSTEMS
Abstract:
The aim of the invention is to calibrate an electronically phase-controlled group antenna in radio-communications systems using a reference point in the downlink device, whereby said point is shared by all reference signals. Distinguishable reference signals are simultaneously transmitted from the individual antenna elements of the group antenna and are appropriately separated after having been received at a shared reference point.