METHOD AND DEVICE FOR POWER LINE HEAD-END DATA TRANSMISSION
摘要
<p>A coupler (400) for directional coupling to a power line, for use as a head-end coupler, repeater and/or tail end coupler in a power line communications environment. The coupler (300) has a primary winding (302) in series between a first port (304) and a second port (306), for carrying electrical power and for coupling communication signals. One or more communications windings (330) are inductively coupled to the primary winding (302) in a communication frequency band and substantially isolated from the primary winding (302) in a power frequency band. A capacitor filter (310) at the first port (304) removes communication signals at the first port (304) while permitting power flow through the first port (304).</p>
