Journal ArticleDOI
An Antenna Co-Design Dual Band RF Energy Harvester
Reads0
Chats0
TLDR
It is demonstrated that it is difficult to harvest RF energy over a wide frequency band if the ambient RF energy sources are weak, owing to the voltage requirements.Abstract:
RF energy is widely available in urban areas and thus presents a promising ambient energy harvesting source. In this paper, a CMOS harvester circuit is modeled and analyzed in detail at low environmental power levels. Based on the circuit analysis, a design procedure is given for a narrowband energy harvester. The antenna and harvester co-design methodology is discussed to improve RF to DC energy conversion efficiency. We demonstrate that it is difficult to harvest RF energy over a wide frequency band if the ambient RF energy sources are weak, owing to the voltage requirements. Since most ambient RF energy lies in a few narrow bands, a dual/multi-band energy harvester architecture should be able to harvest much of the available RF energy. A dual-band CMOS energy harvester is designed and fabricated using an IBM 0.13 μm process. The simulated and measured results demonstrate a dual-band energy harvester that obtains over 9% efficiency for two different bands (around 900 MHz and around 1900 MHz) at an input power as low as -19.3 dBm. The DC output voltage of this harvester is over 1 V, which can be used to recharge the battery to form an inexhaustibly powered communication system.read more
Citations
More filters
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
A Multi-Band Stacked RF Energy Harvester With RF-to-DC Efficiency Up to 84%
TL;DR: It is shown that the RF-to-dc conversion efficiency is more than doubled compared to that measured with a single RF source, thanks to the proposed rectifier architecture.
Book ChapterDOI
The Design of CMOS Radio-Frequency Integrated Circuits: RF CIRCUITS THROUGH THE AGES
TL;DR: In this paper, an expanded and thoroughly revised edition of Thomas H. Lee's acclaimed guide to the design of gigahertz RF integrated circuits features a completely new chapter on the principles of wireless systems.
Journal ArticleDOI
A High-Efficiency 24 GHz Rectenna Development Towards Millimeter-Wave Energy Harvesting and Wireless Power Transmission
TL;DR: This work addresses design and implementation issues of a 24 GHz rectenna, which is developed to demonstrate the feasibility of wireless power harvesting and transmission techniques towards millimeter-wave regime.
Journal ArticleDOI
Efficiency in RF energy harvesting systems: A comprehensive review
TL;DR: This paper characterize an RF energy harvesting system, which makes the design of system possible to obtain the maximum efficiency and correspondingly the maximum output power, and presents detailed information about the system parameters.
References
More filters
Journal Article
The design of CMOS radio-frequency integrated circuits, 2nd edition
TL;DR: This expanded and thoroughly revised edition of Thomas H. Lee's acclaimed guide to the design of gigahertz RF integrated circuits features a completely new chapter on the principles of wireless systems.
Journal ArticleDOI
Fully integrated passive UHF RFID transponder IC with 16.7-/spl mu/W minimum RF input power
U. Karthaus,M. Fischer +1 more
TL;DR: A novel fully integrated passive transponder IC with 4.5- or 9.25-m reading distance at 500-mW ERP or 4-W EIRP base-station transmit power, operating in the 868/915-MHz ISM band with an antenna gain less than -0.5 dB.
Journal ArticleDOI
Efficient Far-Field Radio Frequency Energy Harvesting for Passively Powered Sensor Networks
TL;DR: An RF-DC power conversion system is designed to efficiently convert far-field RF energy to DC voltages at very low received power and voltages and is ideal for use in passively powered sensor networks.
Journal ArticleDOI
A 950-MHz rectifier circuit for sensor network tags with 10-m distance
TL;DR: In this article, the authors presented a 950-MHz wireless power transmission system and a high-sensitivity rectifier circuit for ubiquitous sensor network tags, which offers a battery-life-free sensor tag by recharging the output power of a base station into a secondary battery implemented with the tag.
Journal ArticleDOI
Investigation of Rectenna Array Configurations for Enhanced RF Power Harvesting
TL;DR: A simple rectenna design ex ample containing a 2 × 2 planar antenna array will be presented to demonstrate such RF power harvesting technology and the parameter, Rectenna Topology Indicator (RTI), is introduced for performance comparison.