A 5.2 GHz RF Energy Harvester System Using Reconfigurable Parallel Rectenna

Abbasizadeh, Hamed; Kim, SangYun; Nga, Truong Thi Kim; Khan, Danial; Oh, Seong Jin; Kim, Sung Jin; Kim, Kwan Tae; Kim, Dong In; Lee, Kang Yoon

doi:10.1109/mwscas.2018.8623867

Cited by 7 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A super capacitor is connected at the output of the buck-boost converter to store energy and provides power for IoT/wearable devices and charging the battery. Figure 3 illustrates a block diagram of the proposed RF EH system [8]. It comprises a 2 × 3 array patch antenna, 6-parallel RF-DC converter in the front side, DC-DC converter, BLE module, and Universal Serial Bus (USB) connector on the back side of the Rx module PCB board.…”

Section: Architectural and Detailed Building Blocks Of The Ef Eh Systemmentioning

confidence: 99%

“…Due to problems associated with the replacement or recharging of batteries, self-powering based on an energy harvesting communication network is a critical demand for these wireless devices. The main focus of recent work is remote charging via an EH from a renewable source and optimizing the processing methods [1][2][3][4][5][6][7][8]. Besides thermal, solar, and wind energy sources for EH, recently, the presence of ambient radio frequency (RF) signals is becoming an appealing source for EH in portable devices.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A High-Efficiency and Wide-Input Range RF Energy Harvester Using Multiple Rectenna and Adaptive Matching

et al. 2020

Self Cite

View full text Add to dashboard Cite

In this paper, a Radio Frequency (RF) energy harvester (EH) system for Internet of Things (IoT)-related applications is presented. The proposed EH architecture operates at 5.2 GHz band and utilizes multiple rectenna. This approach enhances the efficiency of the whole system over a wide dynamic RF input range. In the presented circuit, configuration of the rectenna is controlled by Field-Programmable Gate Array (FPGA) with respect to the input power level of the received RF input signal. In addition, an automatic adaptive matching based on the configuration of the rectenna, level of the received signal, and load current adjusts the matching network. The rectenna is realized through the Radio Frequency-Direct Current (RF-DC) converter composed of two Schottky diodes and generates the output DC voltage. Finally, a buck-boost converter provides the flattened and fixed voltage for the IoT and wearable devices. The 5.2 GHz band reconfigurable system demonstrates 67% high efficiency and 6.1 V output DC voltage where the power level of RF input is +20 dBm. The main application of the proposed structure is for charging wearable smart devices such as a smart watch and bracelet.

show abstract

Section: Architectural and Detailed Building Blocks Of The Ef Eh Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A High-Efficiency and Wide-Input Range RF Energy Harvester Using Multiple Rectenna and Adaptive Matching

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…It is a dual-mode SWIPT board operation operating at 900 MHz. Moreover, an off-chip (external) 5.2 GHz rectenna, shown in Figure 2, is connected to a buck–boost converter by a power metal–oxide–semiconductor (MOS) switch to check the operation of the RF EH receiver [23].…”

Section: System Architecture and Building Blocksmentioning

confidence: 99%

“…Therefore, a low-power transceiver architecture without the oscillator is considered to be the prerequisite for realizing the self-powered SWIPT considered herein. For this, we propose a high-efficiency energy harvesting circuit along with ultra-low-power communication transceiver design in order to achieve the required trade-off between the harvested energy and the achievable data rate [22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39].…”

Section: Introductionmentioning

confidence: 99%

Design of a 900 MHz Dual-Mode SWIPT for Low-Power IoT Devices

Abbasizadeh

Kim

Rikan

et al. 2019

Sensors

Self Cite

View full text Add to dashboard Cite

This paper presents a duty cycle-based, dual-mode simultaneous wireless information and power transceiver (SWIPT) for Internet of Things (IoT) devices in which a sensor node monitors the received power and adaptively controls the single-tone or multitone communication mode. An adaptive power-splitting (PS) ratio control scheme distributes the received radio frequency (RF) energy between the energy harvesting (EH) path and the information decoding (ID) path. The proposed SWIPT enables the self-powering of an ID transceiver above 20 dBm input power, leading to a battery-free network. The optimized PS ratio of 0.44 enables it to provide sufficient harvested energy for self-powering and energy-neutral operation of the ID transceiver. The ID transceiver can demodulate the amplitude-shift keying (ASK) and the binary phase-shift keying (BPSK) signals. Moreover, for low-input power level, a peak-to-average power ratio (PAPR) scheme based on multitone is also proposed for demodulation of the information-carrying RF signals. Due to the limited power, information is transmitted in uplink by backscatter modulation instead of RF signaling. To validate our proposed SWIPT architecture, a SWIPT printed circuit board (PCB) was designed with a multitone SWIPT board at 900 MHz. The demodulation of multitone by PAPR was verified separately on the PCB. Results showed the measured sensitivity of the SWIPT to be −7 dBm, and the measured peak power efficiency of the RF energy harvester was 69% at 20 dBm input power level. The power consumption of the injection-locked oscillator (ILO)-based phase detection path was 13.6 mW, and it could be supplied from the EH path when the input power level was high. The ID path could demodulate 4-ASK- and BPSK-modulated signals at the same time, thus receiving 3 bits from the demodulation process. Maximum data rate of 4 Mbps was achieved in the measurement.

show abstract

Comparative Analysis of Rectenna Systems for Radio Frequency Energy Harvesting

Rajneesh

Sharma

2022

Intelligent Systems Reference Library

View full text Add to dashboard Cite

A 5.2 GHz RF Energy Harvester System Using Reconfigurable Parallel Rectenna

Cited by 7 publications

References 7 publications

A High-Efficiency and Wide-Input Range RF Energy Harvester Using Multiple Rectenna and Adaptive Matching

A High-Efficiency and Wide-Input Range RF Energy Harvester Using Multiple Rectenna and Adaptive Matching

Design of a 900 MHz Dual-Mode SWIPT for Low-Power IoT Devices

Comparative Analysis of Rectenna Systems for Radio Frequency Energy Harvesting

Contact Info

Product

Resources

About