Broadband RCN-based RF-rectifier with a large range of power for harvesting ambient wireless energy

Muhammad, Surajo; Tiang, Jun Jiat; Wong, Sew Kin; Nebhen, Jamel; Smida, Amor; Waly, Mohamed Ibrahim; Iqbal, Amjad

doi:10.1016/j.aeue.2022.154228

Cited by 9 publications

(4 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, situations may arise where there is no available light, body movement, or temperature gradient to generate electricity. Despite their relatively low intensity, ambient electromagnetic fields persistently exist and can serve as a consistent alternative to meet the energy demands of high-activity devices [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Design of 2.45 GHz Rectifier for Low-Power RF Energy Harvesting Applications

Omara,

Ali,

Eltrass

et al. 2024

Preprint

View full text Add to dashboard Cite

The rising demand across various applications has spurred growth in the energy harvesting, which is a novel means to generate energy and provide energy to low-power devices utilizing the available resources. The primary part of energy harvesting systems that convert RF energy to DC power from existing sources is known as a rectifier. The objective of this study is to create an innovative rectifying circuit designed for energy harvesting at 2.45 GHz. The primary aim is to enhance the output voltage compared to existing rectifier circuits such as the Dickson and Cockcroft-Walton configurations. The proposed rectifier circuit exhibits exceptional output threshold and maximum output voltage. Moreover, it achieves a significantly improved power conversion efficiency (PCE), with an enhancement of 43% for the Dickson rectifier and 47% for the Cockcroft-Walton rectifier. To develop and evaluate the suggested rectifier circuit, simulations are performed utilizing the Schottky diode HSMS 285C. The input power range considered for the simulations varies from -20 dBm to 35 dBm. To validate the simulation results, fabricated models for the three prominent topologies have been developed, and the simulation and measurement outcomes agree well, confirming the suitability of the proposed topology for harvesting RF Wi-Fi signals. Results demonstrate that the presented rectifier surpasses the operational attributes of the conventional the rectifying networks in relation to output voltage and PCE.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of 2.45 GHz Rectifier for Low-Power RF Energy Harvesting Applications

Omara,

Ali,

Eltrass

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…They have been widely used in wireless charging, radio frequency identification (RFID) systems, and energy harvesting systems [2][3][4]. However, one of the paramount problems with the present rectifiers [5][6][7][8] is that they usually suffer from poor conversion efficiency at low-resistance loads. Low-resistance loads may cause inefficiencies in the system, resulting in energy waste.…”

Section: Introductionmentioning

confidence: 99%

A Method for Improving Radio Frequency Rectification Efficiency in Low-Resistance Loads

Jiang,

Liu,

Yang

et al. 2024

Electronics

View full text Add to dashboard Cite

Present radio frequency (RF) rectifiers usually suffer from poor power conversion efficiency (PCE) at low-resistance loads, and the currently proposed DC-DC converter cannot solve this problem well. Aiming at this above problem, we propose a novel DC-DC converter for rectifiers, which consists of a Boost–Buck circuit and a Buck circuit cascaded together to maintain high PCE at both high and low load resistance; the converter can also operate over a wide range of input powers. The proposed converter, along with a 2.45 GHz rectifier, was fabricated to verify its performance. With the converter, the load range of the rectifier when the overall PCE is over 50% was extended from 250 Ω–1250 Ω to 5 Ω–3000 Ω. The highest overall PCE reached up to 61% and the overall PCE at a small load of 5 Ω increased from 1.1% to 54%. The proposed converter can be used in wireless power transmission (WPT).

show abstract

“…In addition, a low input power dual‐band rectifier operating at 3.5 and 5.8 GHz has been developed by Surender et al 18 Another approach to designing a dual‐band rectifier is to add a half‐wavelength transmission line (TLIN) using a single‐band matching network to increase the second band 19 . While the design of dual‐band rectifiers also incorporates methods such as short stub matching networks 12 and two‐branch matching networks, 14 the dual‐band rectifiers proposed in Chandravanshi et al, 9 Liu et al, 10 and Muhammad et al 20 are too large. Conversely, the rectifiers proposed in Niotaki et al, 15 Wang and Negra, 16 and Samakkhee et al 21 are compact, but one of the bands suffers from inefficiency.…”

Section: Introductionmentioning

confidence: 99%

High efficiency dual‐band rectifiers with wide input power range for wireless power transfer

Liu,

Xie,

Wang

2024

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A watt‐scale dual‐band rectifier with excellent efficiency and a wide input power range is proposed in this letter. The rectifier is composed of two stages. In the first stage, a novel impedance‐matching network with four transmission lines (TLINs) is proposed, which can independently change the input impedance of each band over a large input power range. This approach by deriving closed‐form analytical equations to obtain an exact solution. To test the parameters of the first part of the TLINs in validation and to guarantee excellent efficiency, two TLINs are used in the second stage to control the harmonics. At 0 dBm, the power conversion efficiency (PCE) is 51.2% and 56.7% at 2.4 and 5.8 GHz, respectively, at a load of 1.2 kΩ. At 2.4 GHz, PCE reaches a peak of 68% at 13 dBm. At 5.8 GHz, PCE enhances up to 89% at 17 dBm. At 2.4 and 5.8 GHz, the PCE exceeds 70% of the peak over a wide input power range of −3 to 18 and 1.5–18 dBm, respectively. For verification, the proposed rectifier is fabricated. The simulation results are consistent with the measurements. The proposed rectifier performs well in terms of compactness and rectification effectiveness. It provides a solution for powering low‐power devices.

show abstract

Broadband RCN-based RF-rectifier with a large range of power for harvesting ambient wireless energy

Cited by 9 publications

References 68 publications

Design of 2.45 GHz Rectifier for Low-Power RF Energy Harvesting Applications

Design of 2.45 GHz Rectifier for Low-Power RF Energy Harvesting Applications

A Method for Improving Radio Frequency Rectification Efficiency in Low-Resistance Loads

High efficiency dual‐band rectifiers with wide input power range for wireless power transfer

Contact Info

Product

Resources

About