CAD procedure for predicting the energy received by wireless scavenging systems in the near- and far-field regions

The paper introduces a rigorous methodology for predicting RF-to-DC conversion in power harvesters. The results of a full-wave EM simulation of the harvesting antenna are rigorously handled by EM theory to produce a Norton equivalent circuit of the antenna in the presence of an incident field. In tu...

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Bibliographic Details
Main Authors: Rizzoli, V, Masotti, D, Arbizzani, N, Costanzo, A
Format: Conference Proceeding
Language:English
Subjects:
Antenna theory
Base stations
Circuit simulation
co-design
EM simulation
EM theory
Equivalent circuits
GSM
Mobile handsets
Polarization
Radio frequency
Rectennas
Rectifiers
RF energy harvesting
RF to DC conversion efficiency
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Description
Summary:The paper introduces a rigorous methodology for predicting RF-to-DC conversion in power harvesters. The results of a full-wave EM simulation of the harvesting antenna are rigorously handled by EM theory to produce a Norton equivalent circuit of the antenna in the presence of an incident field. In turn, this allows a full nonlinear analysis of the rectifier to be carried out, thus providing an accurate evaluation of the conversion efficiency. For validation purposes we consider a circularly polarized rectifying antenna (rectenna) designed to harvest energy from RF sources (such as mobile phones and/or base stations) at GSM 1800 standard frequencies. The computed and measured performance of a prototype rectenna compare very favorably in different real-world scenarios including near- and far-field situations.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2010.5517916