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Design of Bidirectional Coupling Circuit for Broadband Power-Line Communications

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Author(s): Syed Samser Ali | Amitabha Bhattacharya | Dipak Ranjan Poddar

Journal: Journal of Electromagnetic Analysis and Applications
ISSN 1942-0730

Volume: 04;
Issue: 04;
Start page: 162;
Date: 2012;
Original page

Keywords: Coupling Circuits | Line Trap Circuit | Broadband

ABSTRACT
This paper deals with the design of bidirectional coupler for broadband power line communication and the impedance matching technique with the power line. This coupler can be used for both transmitting and receiving the data, acting as transceiver. The impedance mismatching problem is also solved here using line trap circuit. The coupler circuit is capable of transmitting or receiving modulated signals with carrier frequency of 15 MHz which can be used for domestic as well as distribution power networks. Laboratory prototype tested using power line network consists of electrical household appliances and results show that the circuit is able to facilitate bidirectional band pass transmission.
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