Journal ArticleDOI
Recycling ambient microwave energy with broad-band rectenna arrays
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TLDR
In this article, a 64-element dual-circularly-polarized spiral rectenna array is designed and characterized over a frequency range of 2-18 GHz with single-tone and multitone incident waves.Abstract:
This paper presents a study of reception and rectification of broad-band statistically time-varying low-power-density microwave radiation. The applications are in wireless powering of industrial sensors and recycling of ambient RF energy. A 64-element dual-circularly-polarized spiral rectenna array is designed and characterized over a frequency range of 2-18 GHz with single-tone and multitone incident waves. The integrated design of the antenna and rectifier, using a combination of full-wave electromagnetic field analysis and harmonic balance nonlinear circuit analysis, eliminates matching and filtering circuits, allowing for a compact element design. The rectified dc power and efficiency is characterized as a function of dc load and dc circuit topology, RF frequency, polarization, and incidence angle for power densities between 10/sup -5/-10/sup -1/ mW/cm/sup 2/. In addition, the increase in rectenna efficiency for multitone input waves is presented.read more
Citations
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Journal ArticleDOI
Wireless Networks With RF Energy Harvesting: A Contemporary Survey
TL;DR: This paper presents an overview of the RF-EHNs including system architecture, RF energy harvesting techniques, and existing applications, and explores various key design issues according to the network types, i.e., single-hop networks, multiantenna networks, relay networks, and cognitive radio networks.
Journal ArticleDOI
Harvesting Wireless Power: Survey of Energy-Harvester Conversion Efficiency in Far-Field, Wireless Power Transfer Systems
TL;DR: The idea of wireless power transfer (WPT) has been around since the inception of electricity and Nikola Tesla described the freedom to transfer energy between two points without the need for a physical connection to a power source as an?all-surpassing importance to man? as discussed by the authors.
Journal ArticleDOI
Energy harvesting: State-of-the-art
TL;DR: In this article, the authors present a brief history of energy harvesting for low power systems followed by a review of the state-of-the-art energy harvesting techniques, power conversion, power management, and battery charging.
Journal ArticleDOI
RF Energy Harvesting and Transport for Wireless Sensor Network Applications: Principles and Requirements
Hubregt J. Visser,Ruud Vullers +1 more
TL;DR: The feasibility of harvesting is discussed, leading to the conclusion that RF energy transport is preferred for powering small sized sensors by radio-frequency energy harvesting or transport.
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Electromagnetic wireless nanosensor networks
TL;DR: The state of the art in nanos sensor technology is surveyed from the device perspective, by explaining the details of the architecture and components of individual nanosensors, as well as the existing manufacturing and integration techniques for nanosensor devices.
References
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Proceedings ArticleDOI
Microfabricated secondary batteries for remote, autonomous, electronic devices
TL;DR: The use of integrable microscopic batteries in MEMS represents a significant enablement of MEMS technology and makes autonomous and remote MEMS devices thus become feasible.
Proceedings ArticleDOI
A transponder IC for wireless identification systems
TL;DR: A novel batteryless, self-powered transponder design as well as its chip layout is presented, which uses a digital CMOS circuit and is compatible with the TIRIS system, a popular RFID product designed by Texas Instruments.
Journal ArticleDOI
Radio frequency exposure and safety associated with base stations used for personal wireless telecommunication
TL;DR: In this article, the authors pose new questions regarding the adequacy of the existing knowledge of biological effects of RF electromagnetic fields, and of the protection afforded the public from the harmful effects of these fields.
Proceedings ArticleDOI
High efficiency and latch-up free switched capacitor up converter on FD-SOI technology
TL;DR: In this article, a latch-up free Switched Capacitor (SC) type voltage up converter on 0.35 /spl mu/m FD-SOI technology was developed.
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