Affiliation:
1. School of Telecommunication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, P. R. China
2. School of Electronics and Electrical Engineering, Chuzhou University, Chuzhou 239000, P. R. China
Abstract
In power line communication (PLC), coupling transformers are usually required for coupling, band-pass filtering and impedance matching. However, coupling transformer design involves so many parameters that it is typically an imprecise and experimental procedure. In addition, the cost and size of transformers prevent them from being an economic and compact solution for PLC couplers. This paper first analyzes a simplified, distributed parameter model of the power line, which can be used to calculate power line impedance easily and accurately. Next, a low-cost, band-pass matching coupler with compact architecture is designed to replace the coupling transformer for direct current PLC (DC-PLC), which ensures impedance matching on the basis of an accurate power line impedance instead of using an average value. Finally, simulations as well as laboratory tests are conducted under 95–125[Formula: see text]kHz (CENELEC B-band), which confirm the new coupler’s excellent band-pass filtering and impedance matching performance.
Funder
National Natural Science Foundation of China
Natural Science Foundation of the Jiangsu Higher Education Institutions of China
Postgraduate Research & Practice Innovation Program of Jiangsu Province
Natural Science Foundation of Chuzhou University
Publisher
World Scientific Pub Co Pte Lt
Subject
Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture
Cited by
4 articles.
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