Impedance matching with low-cost, passive components for narrowband PLC

Sibanda, Mloyiswa P.; Rensburg, P.A.J. van; Ferreira, H.C.

doi:10.1109/isplc.2011.5764418

Cited by 18 publications

(14 citation statements)

References 6 publications

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“…In Refs. [63,64], the authors designed a PLC coupler, which includes a coupling circuit and an impedance matching circuit. As shown in Figure 1, V system and Z system are the voltage and internal impedance of the transmitter, respectively.…”

Section: Based On Matching Methodsmentioning

confidence: 99%

“…As discussed in Section 3.1, the band-pass matching couplers [62][63][64][65][66] often include a BPF circuit and an impedance matching circuit, where the circuit components are passive and the circuit structures are fixed. The band-pass matching coupler, with fixed structure and component values, is optimized for a specific frequency and a constant network access impedance.…”

Section: Based On Fixed or Variable Components/structuresmentioning

confidence: 99%

“…Although several benefits, e.g., voltage isolation and circuit protection, are gained from using the transformer, the cost and size of the transformers prevent them from being an economic and compact solution for PLC couplers. Therefore, to address these issues, L-C band-pass matching circuits [62][63][64][65][66] were used as alternatives to coupling transformers, which include a BPF circuit and an impedance matching circuit (see Section 3.1). The impedance matching circuit is made up of passive components, e.g., capacitors and inductors, that were used to achieve equal impedance matching between the characteristic impedance of the BPF and power line channel.…”

Section: Based On Bandwidthmentioning

confidence: 99%

“…Research related to narrowband PLC couplers were investigated in Refs. [62][63][64][65][66], where the narrowband band-pass matching coupling circuits were designed as alternatives to coupling transformers to achieve coupling, band-pass filtering and impedance matching. The impedance matching circuits are composed of lumped-elements, e.g., capacitors and/or inductors, and operated at 110 kHz to achieve impedance between the BPF and the power line channels.…”

Section: Based On Bandwidthmentioning

confidence: 99%

“…In PLC, the internal impedance of the PLC transmitter/receiver (communication instrument) is usually assumed to be 50 Ω [62][63][64][65][66]. As introduced in Section 3.1, impedance matching methods include equal impedance matching, complex conjugate matching and voltage-maximization matching.…”

Section: Based On Impedance Typesmentioning

confidence: 99%

See 4 more Smart Citations

A Review of Impedance Matching Techniques in Power Line Communications

Wang

Cao

2019

Electronics

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Impedance mismatch that degrades signal power transfer and affects communication reliability is a major obstacle for power line communications (PLC). Impedance matching techniques can be designed to effectively compensate for the impedance mismatch between PLC modems and power line networks at a specific frequency or for a given frequency band. In this paper, we discuss the tradeoffs that need to be made when designing an effective impedance matching network. We also make a comprehensive review of previous state-of-the-art PLC impedance matching techniques and provide a useful classification of each technique. Finally, we discuss important issues (concerns) and provide suggestions for research directions deserving more attention. This review provides a useful guideline for researchers and manufacturers to quickly understand impedance matching principles and facilitate the design of an effective impedance matching coupler for PLC applications.

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Section: Based On Matching Methodsmentioning

confidence: 99%