Method and apparatus for processing multiple commo

专利名称：Method and apparatus for processing

multiple common frequency signals througha single cable using circulators

发明人：Peter Deane,Abdelgader Legnain,Neil

McGowan,Marthinus Da Silveira

申请号：US10642649申请日：20030819

公开号：US20040190479A1公开日：20040930

专利附图：

摘要：A method and apparatus for processing multiple signals at a common

frequency combined into a single radio frequency cable and subsequently recovering thesignals without significant losses, distortion, or cross-talk. The method and apparatusincludes processing multiple signals at a common frequency fed through a single radiofrequency (RF) cable with or without one or more amplifiers and utilized for eitherforward or reverse link transmissions. The invention enables a single power amplifier toamplify multiple RF signals that occupy a common frequency channel and after

amplification splitting these signals into amplified copies of the originals. The amplifiedsignals may be sent to different antenna ports to illuminate different base stationsectors if required. The signal splitting function is performed at the antenna mastheadsuch that this method reduces the number of feeder cables running up the antennatower by a factor of N, where N is the number of common frequency signals (e.g., thenumber of sectors) amplified by the single power amplifier. This invention enables asingle power amplifier to simultaneously provide all the radio frequency signalsnecessary to feed a general N input phased array antenna system and form multipleantenna beams uniquely for several individual users simultaneously.

申请人：DEANE PETER,LEGNAIN ABDELGADER,MCGOWAN NEIL,SILVEIRA MARTHINUSDA

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