Advances in Wirelessly Powered Backscatter Communications: From Antenna/RF Circuitry Design to Printed Flexible Electronics

Song, Chaoyun; Ding, Yuan; Eid, Aline; Hester, Jimmy; He, Xuanke; Bahr, Ryan; Georgiadis, Apostolos; Goussetis, George; Tentzeris, Manos M.

doi:10.1109/jproc.2021.3125285

Cited by 51 publications

(28 citation statements)

References 126 publications

(128 reference statements)

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“…Feasibility study and comprehensive survey mobile communications (GSM), Wireless Fidelity (Wi-Fi), Bluetooth, long-range (LoRa), and other wireless networks, has gained the tremendous attention of the research community. Thus, several surveys [11], [12], [25]- [31] treat many relevant aspects. Reference [11] covers the basics and modulation of BackCom while summarizing recent research on bistatic BackCom (BiBC) systems.…”

Section: This Papermentioning

confidence: 99%

“…This survey thus aims to serve as a useful reference document for researchers and practicing engineers. Antenna and RF system designs and packaging technologies for BackCom systems are covered in [31]. In contrast, we focus explicitly on the link budget analysis for backscatter links to enable passive IoT.…”

Section: This Papermentioning

confidence: 99%

“…Typically, the amount of output power of the energy harvester for practical cases is from ∼1 µW to ∼100 µW [31]. This is mainly because energy conversion efficiency is usually low, especially for low-cost devices with limited size.…”

Section: ) Rectifier Designsmentioning

confidence: 99%

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Link Budget Analysis for Backscatter-Based Passive IoT

et al. 2022

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Massive connectivity of billions of communicating devices for fifth-generation (5G) and beyond networks requires the deployment of self-sustaining, maintenance-free, and low-cost communication paradigms. Could passive Internet of Things (IoT) solve these challenges? Passive IoT can be realized with the backscatter communication (BackCom) paradigm, which uses ultra-low power, inexpensive passive tags to support massive connectivity. However, a comprehensive link budget analysis for BackCom networks has not yet been available. It is something that is necessary for practitioners and researchers to evaluate the potential of BackCom. This survey is organized as follows. First, we describe the BackCom configurations, passive IoT design targets, backscatter channel statistics, and the different components and operations of the backscatter tag. Second, we develop the forward link budget and the overall link budget. All the relevant parameters are described in detail. Third, we give numerical and simulation results to get insights on the achievable performance of BackCom networks. Since additive path losses and excess fading can limit the performance of BackCom networks, we examine potential solutions to overcome the resulting limitations, enabling massive IoT networks. We also discuss integrating BackCom with existing wireless technologies. We further highlight some applications and address open issues, challenges, and future research directions.

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Section: This Papermentioning

confidence: 99%

Section: This Papermentioning

confidence: 99%

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Link Budget Analysis for Backscatter-Based Passive IoT

et al. 2022

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“…where PN represents a vector containing all 1-bit phase shifter values, as in (2), see illustration in Figure 1.…”

Section: Synthesis-free Van-atta Directional Modulation Transmittermentioning

confidence: 99%

“…Backscatter communication, an emerging microwattlevel communication scheme, is being studied as a solution to fulfil this gap. A backscatter tag reflects, and at the same time modulates, an incident radio signal without the need of power-hungry components in radio frequency (RF) frontends, for example, carrier synthesisers and power amplifiers can be eliminated [2]. Specifically, the ambient radio waves, for example, frequency modulation (FM)/TV signals and Wi-Fi signals, are abundant in both outdoor and indoor environments and they can be used as RF sources [3][4][5] in ambient backscattering communication schemes.…”

Section: Introductionmentioning

confidence: 99%

Synthesis‐free backscatter directional modulation communication using Van‐Atta arrays

Huang

Purushothama

Ding

et al. 2022

IET Microwaves Antenna & Prop

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Backscatter communication, an emerging ultra-low-power wireless communication paradigm, has been studied as a promising solution for wireless communications in some Internet-of-Things (IoT) applications. The required ubiquitous data transmission in the IoT world is demanding information security. Different from mathematical encryption at higher protocol layers, the directional modulation (DM) technology can provide physicallayer wireless security, which does not require digital and computation resources that are otherwise scarce in low-power IoT devices. In this paper, a synthesis-free Van-Atta backscatter array is constructed and studied. The authors show that a Van-Atta array can be made to project orthogonal interference upon the backscattered signals in the radio frequency domain. The design details of the Van-Atta DM array are elaborated, and its efficacy is validated via bit error rate simulations.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Tailless Information–Energy Metasurface

Chang,

Mu,

Han

et al. 2024

Advanced Materials

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Programmable metasurface technology can achieve flexible manipulations of electromagnetic waves in real time by adjusting the surface structure and material properties, and has shown extraordinary potentials in many fields such as wireless communications and Internet of Things. However, most of the programmable metasurfaces have a common feature: a tail (electrical wires and DC powers), which is difficult to supply in some particular application scenarios such as canyons and mountains. To eliminate the limitation of DC power supply, we combine the programmable metasurface and wireless power transfer technology to propose a tailless information‐energy metasurface (IEMS). The tailless IEMS platform can dynamically control electromagnetic waves without relying on an external DC power supply; instead, the required DC power is provided internally by the IEMS platform itself. In the tailless IEMS experiments, we have demonstrated our concept through the dynamic regulation of wireless channels and the wireless transmission of DC power. Our work provides a self‐powered method for the programmable metasurfaces, expands the application scenarios, facilitates the miniaturization of systems, and makes it easy to integrate with other systems.This article is protected by copyright. All rights reserved

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Advances in Wirelessly Powered Backscatter Communications: From Antenna/RF Circuitry Design to Printed Flexible Electronics

Cited by 51 publications

References 126 publications

Link Budget Analysis for Backscatter-Based Passive IoT

Link Budget Analysis for Backscatter-Based Passive IoT

Synthesis‐free backscatter directional modulation communication using Van‐Atta arrays

Tailless Information–Energy Metasurface

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