A Broadband High-Efficiency Rectifier for Mid-Field Wireless Power Transfer

Le, Giang Truong; Nguyen, Ngan; Au, Ngoc Duc; Seo, Chulhun

doi:10.1109/lmwc.2021.3077566

Cited by 15 publications

(5 citation statements)

References 19 publications

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“…The technology mainly realizes the receiving and transmission of energy through the rectifier antenna, which can transmit the widely distributed electromagnetic wave energy in the daily living environment to the place where other energy (such as solar energy, thermal energy, vibration energy) cannot be transmitted. Recently, the power density of environmental electromagnetic signals is expanding due to the expansion of mobile cellular networks and applications supporting Wi-Fi [19][20][21]. Currently, properly managed collected energy has been applied on low-power devices and low-power sensor nodes [22][23][24][25].…”

Section: Related Workmentioning

confidence: 99%

Dual Frequency Energy Harvesting System Based on Planar Inverted F-shaped Antenna

Jia Liu,

Jia Liu

2024

Journal of Computers

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<p>With the expansion of Internet of things (IoT) scale and the extension of its application fields, node energy acquisition has become one of the constraints on the development and application of IoT technology. Wireless energy acquisition is faced with the challenge of how to enhance power conversion efficiency under low input power in the broadband range. This study aimed to improve the capability of energy collection and transmission in wireless communication, an efficient dual-frequency energy harvesting system was proposed, moreover a novel dual-frequency planar inverted-f antenna (PIFA) and its energy conversion circuit for Radio frequency (RF) energy harvesting were designed by studying the characteristics of ambient RF energy and antenna. The developed antenna is designed and manufactured for GSM 900mhz or DCS 1.8 GHz to harvest the ambient energy provided by nearby devices. It is proved that the new dual-frequency antenna still has high efficiency when the input power is less than -20 dbm, and can maximize the receiving energy. The system works with an energy conversion and storage module to convert weak signals into required voltages, the simulation and test results show that the maximum conversion efficiency of the prototype is about 65% at 920MHZ and 1.8GHz at -20 dBm input power.</p> <p> </p>

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Section: Related Workmentioning

confidence: 99%

Dual Frequency Energy Harvesting System Based on Planar Inverted F-shaped Antenna

Jia Liu,

Jia Liu

2024

Journal of Computers

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“…The received RF signal is managed and processed under the specified RFEH approach to activate low-power devices. The accessible RF power density from various sources varies from 0.18 to 84 nW/cm 2 in the ambiance environment, which can reach up to 1000 µW/cm 2 from the RF dedicated source [61,63,65,104]. The rectenna has attracted a lot of interest from scholars in recent years, as depicted in Figure 2.…”

Section: Rfeh Rectennamentioning

confidence: 99%

“…To ensure and identify a proper RF signals for harvesting, it is important to evaluate essential factors of the radiating signal. These parameters comprise frequency, P in , location, coverage area, and the transceiver base station (BS) [63][64][65][66]. Many RF EM sources, such as GSM BS transceivers, Wi-Fi networks, WiMax networks, 5G networks, Medium Wave (MW) broadcast stations, and so on, are nowadays available in semi-urban and urban environments [67,68].…”

Section: Introductionmentioning

confidence: 99%

Harvesting Systems for RF Energy: Trends, Challenges, Techniques, and Tradeoffs

et al. 2022

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The RFEH design challenges can be broadly classified into overall radio frequency direct current (RF-to-DC) power conversion efficiency (PCE), form factor, operational bandwidth (BW), and compactness. A detailed overview of the essential components of an RFEH system is presented in this paper. Various design approaches have been proposed for the realization of compact RFEH circuits that contribute immensely to mm-wave rectenna design. Effective mechanisms for configuring the rectenna modules based on the recommended spectrums for the RFEH system were also outlined. This study featured a conceptual viewpoint on design tradeoffs, which were accompanied by profound EH solutions perspectives for wireless power communications. The work covers some challenges attributed to 5G EH in mm-wave rectenna: from a controlled source of communication signals to distributed ambient EH and system level design. Conversely, the primary targets of this work are to: (I) examine a wide range of ambient RF sources and their performance with various antennae and RF-rectifier layouts; (II) propose unique rectenna design techniques suitable for current trends in wireless technology; (III) explore numerous approaches for enhancing the rectenna or RF-rectifier efficiency in a low-power ambient environment; and (IV) present the findings of a comprehensive review of the exemplary research that has been investigated. These are aimed toward addressing the autonomous system’s energy challenges. Therefore, with the careful management of the reported designs, the rectenna systems described in this study would influence the upcoming advancement of the low-power RFEH module.

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“…Recently, radio frequency energy harvesting (RFEH) technology has attracted a lot of attention as it can be employed to recycle ambient electromagnetic energy to charge low-power electronic devices without being tethered and constrained to traditional wires [1,2,3,4,5]. Rectifier is a key component of the RFEH system and its PCE plays an important role in determining the total PCE of the system.…”

Section: Introductionmentioning

confidence: 99%

A compact rectifier with wide dynamic range of input power based on two-port impedance compression matching network for RF energy harvesting

Liu,

Chen,

et al. 2024

IEICE Electron. Express

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In this paper, we propose a novel methodology for designing a rectifier with wide input power range (WIPR). In the proposed structure, a two-port resistance compression matching network (RCMN) is employed to extend the dynamic range of the input power. Generally, resistance compression network (RCN) is developed based on three-port network theory. This leads to the conventional RCN-based rectifier has two subrectifiers and arranged in a dual-branch topology. Compared with the conventional RCN-based rectifier, the proposed two-port RCMN-based rectifier not only has a single-branch topology but also can work without using an individual impedance matching network. Thus, a compact size and lower circuit complexity can be achieved. The closed-form design equations of the proposed two-port RCMN are designed. For validation, a 2.45 GHz WIPR-rectifier prototype is fabricated and tested. The experimental results show that the power convert efficiency (PCE) is higher than 50 % when the input power varies from -2.1 to 13.1 dBm. The peak PCE is 74.5 % with a 10.2 dBm input power. And its physical size is only 43 mm × 24 mm.

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A Broadband High-Efficiency Rectifier for Mid-Field Wireless Power Transfer

Cited by 15 publications

References 19 publications

Dual Frequency Energy Harvesting System Based on Planar Inverted F-shaped Antenna

Dual Frequency Energy Harvesting System Based on Planar Inverted F-shaped Antenna

Harvesting Systems for RF Energy: Trends, Challenges, Techniques, and Tradeoffs

A compact rectifier with wide dynamic range of input power based on two-port impedance compression matching network for RF energy harvesting

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