DocumentCode :
2805040
Title :
Classifying Typical Residential Rooms for Narrow-Band Impedance Adaptation
Author :
Van Rensburg, Petrus A Janse ; Ferreira, Hendrik C.
Author_Institution :
Walter Sisulu Univ., East London
fYear :
2007
fDate :
26-28 March 2007
Firstpage :
47
Lastpage :
52
Abstract :
Little work has been done on the topic of power-line impedance adaptation, especially for low-voltage networks. Further, the variations in network topology combined with unknown cable and load impedances, obscure the requirements for impedance adaptation, causing researchers and manufacturers to default to a guessed impedance level and a fixed winding ratio. Attempting to clarify said requirements, this paper utilizes a simple model to linguistically describe narrowband power-line conditions. Simulation results are experimentally verified for 50-Omega modems at frequencies below 1 MHz. Next, typical residential rooms are classified in order to propose proper coupler winding ratios for impedance adaptation. Live 220-V measurements indicate that results are useful regardless of power-line topology, yielding gains up to 10 dB.
Keywords :
carrier transmission on power lines; impedance matching; modems; low-voltage network; narrow-band power-line impedance adaptation; network topology; residential rooms; Africa; Coupling circuits; Electronic mail; Frequency; Gain measurement; Impedance; Modems; Narrowband; Transformers; Windings; Coupling circuits; impedance matching; modems; transformers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Line Communications and Its Applications, 2007. ISPLC '07. IEEE International Symposium on
Conference_Location :
Pisa
Print_ISBN :
1-4244-1090-8
Electronic_ISBN :
1-4244-1090-8
Type :
conf
DOI :
10.1109/ISPLC.2007.371096
Filename :
4231670
Link To Document :
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