Charging Mobile Devices in Indoor Environments

Diogo Matos, Ricardo A. M. Pereira, Helena Ribeiro, Bernardo Mendes, Daniel Belo, Arnaldo Oliveira and Nuno Borges Carvalho
Additional contact information
Diogo Matos: Departamento de Eletrónica Telecomunicações e Informática, Instituto de Telecomunicações, Universidade de Aveiro, 3810-193 Aveiro, Portugal
Ricardo A. M. Pereira: Departamento de Eletrónica Telecomunicações e Informática, Instituto de Telecomunicações, Universidade de Aveiro, 3810-193 Aveiro, Portugal
Helena Ribeiro: Departamento de Eletrónica Telecomunicações e Informática, Instituto de Telecomunicações, Universidade de Aveiro, 3810-193 Aveiro, Portugal
Bernardo Mendes: Departamento de Eletrónica Telecomunicações e Informática, Instituto de Telecomunicações, Universidade de Aveiro, 3810-193 Aveiro, Portugal
Daniel Belo: Huawei Technologies Sweden AB, 16494 Kista, Sweden
Arnaldo Oliveira: Departamento de Eletrónica Telecomunicações e Informática, Instituto de Telecomunicações, Universidade de Aveiro, 3810-193 Aveiro, Portugal
Nuno Borges Carvalho: Departamento de Eletrónica Telecomunicações e Informática, Instituto de Telecomunicações, Universidade de Aveiro, 3810-193 Aveiro, Portugal

Energies, 2022, vol. 15, issue 9, 1-16

Abstract: Wireless power transfer promises to revolutionize the way in which we use and power mobile devices. However, low transfer efficiencies prevent this technology from seeing wide scale real-world adoption. The aim of this work is to use quasioptics to develop a system composed of a dielectric lens fed by a phased array to reduce spillover losses, increasing the beam efficiency, while working on the antenna system’s Fresnel zone. The DC-RF electronics, digital beamforming and beam-steering by an FPGA, and radiating 4 × 4 microstrip patch phased array have been developed and experimented upon, while the lens has been designed and simulated. This paper details these preliminary results, where the phased array radiation pattern was measured, showing that the beam is being generated and steered as expected, prompting the lens construction for the complete system experimentation.

Keywords: wireless power transfer; microwaves; DC-RF conversion; beamforming; beamsteering; phased array; microstrip patch; dielectric lens; antenna characterization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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