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1. US20080007453 - Smart antenna array over fiber

Office United States of America
Application Number 11810840
Application Date 07.06.2007
Publication Number 20080007453
Publication Date 10.01.2008
Publication Kind A1
IPC
H01Q 3/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
H04Q 7/20
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
7Selecting arrangements to which subscribers are connected via radio links or inductive links
20in which the radio or inductive links are two-way links, e.g. mobile radio systems
Applicants VASSILAKIS BILL
HUNTON MATTHEW J
RABINOVICH ALEXANDER
Inventors Vassilakis Bill
Hunton Matthew J.
Rabinovich Alexander
Agents MYERS DAWES ANDRAS & SHERMAN, LLP
Priority Data 60812820 12.06.2006 US
Title
(EN) Smart antenna array over fiber
Abstract
(EN)

A smart antenna system includes a plurality of antennas, a plurality of Transmit—Receive Modules (TRMs) coupled respectively to the plurality of antennas, and a beam steering module coupled to the plurality of TRMs and providing radiation beam steering for the plurality of TRMs. The beam steering module includes a pilot generator for generating a pilot signal and providing it to the TRMs to calibrate a receive (RX) reference plane. The pilot signal is injected at a first location before the receiver section into the RX path, and the pilot signal is sampled at a second location after the receiver section. The TRMs and the beam steering module can also be used to calibrate a transmit (TX) reference plane by sampling output signals from the TRMs. The output signals have a pilot signal component, and are sampled at the first location in the TX path after the transmitter section.

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