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This work deals with the known problem of forecasting overall capacity and viability of a complete distribution feeder as the medium for Power Line Communication (PLC). The estimation involves previewing the input impedances and power loss for each coupling arrangement on every position pair at the feeder, calculated for frequencies between 9 kHz to 10 MHz. When we deal with PLC in primary distribution...
This paper presents a system which predicts the grounding topologies of grounding systems (GS) with one, two, three, or four ground rods in straight line, when no prior information about the grounding topology, soil or rod properties is given. This is achieved through the exploration of the information contained into the impulse response of the GS together with the pattern recognition framework. The...
In this work we present a prototype circuit to harvest energy from radio frequency (RF) electromagnetic waves based on an integrated transformer together with a half-wave multi-stage rectifier. This circuit is designed to be impedance matched to a standard 50 Ω antenna and to operate at 2.4 GHz with input power as low as −15 dBm. The circuit presented here shows that it is possible to harvest low...
This paper presents a detailed comparative study of two different approaches to implement the resonator found in radio frequency (RF) voltage controlled oscillators (VCOs). An inductor LC tank VCO and a transformer LC tank VCO are compared in terms of phase noise, power consumption, tuning range and circuit area. Conclusions about the use of each approach depending on the design goals are presented.
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