Ultra Low Power Hybrid Micro Energy Harvester Using Rf, Thermal and Vibration for Biomedical Devices

Sampe, Jahariah; Zulkifli, Farah Fatin; Semsudin, Nor Afidatul Asni; Islam, Shabiul; Majlis, Burhanuddin Yeop

doi:10.22159/ijpps.2016v8s2.15213

Cited by 8 publications

(5 citation statements)

References 17 publications

(14 reference statements)

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“…Thus, the lower the reflected power, the higher the output power produced by the harvester system. The conversion efficiency of a rectifier with commonly used diode [12]- [17] is depending on incident power intensity and the load connected. Sensitivity of the diode is affected by the threshold voltage, V th .…”

Section: Simulation Resultsmentioning

confidence: 99%

Ultra-Low Power RF Energy Harvesting of 1.9GHz & 2.45GHz Narrow-Band Rectenna for Battery-Less Remote Control

Sampe¹,

Yunus²,

Yunas³

et al. 2017

(IJIEE

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Abstract-Various rectenna designs have been investigated to deal with a big growth interest in wireless energy harvesting. This paper presents a rectenna design of dual frequencies operating antenna at microwave bands which are 1.9 GHz and 2.45 GHz. Tunable impedance matching is considered necessary to supply maximum power transfer from low energy source. Since power efficiency is such a main concern, the perfect matches are desired. The front-end of dual-band receiving antennas convert microwave input signal into alternating current (AC) form. The matching network and the load impedances of the rectenna design are in matched condition to decrease reflected power and to increase input power to rectifier. Then, the power is rectified by the CMOS rectifier to generate direct current (DC) voltage that required for the electronic load. Finally, the system performance is verified with PSpice simulation results. In dual frequency operation, with -20 dBm power source over 1M Ω resistance load, the harvester system is able to generate DC output voltage of 2.09 V and the efficiency reaches 43.68% which is indicate high efficiency for a lower power input level application. The stated results represent that a dual-band rectenna of the energy harvester system could produce 1.62% to 10.18% more efficiency over a single-band rectenna at 1.9 GHz and 2.45 GHz respectively. Index Terms-Dual-band antenna, rectifying, radio frequency, energy harvester, MOSFET, microwave band.

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Section: Simulation Resultsmentioning

confidence: 99%

Ultra-Low Power RF Energy Harvesting of 1.9GHz & 2.45GHz Narrow-Band Rectenna for Battery-Less Remote Control

Sampe¹,

Yunus²,

Yunas³

et al. 2017

(IJIEE

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“…The efficiency of an antenna is mostly determined by the antenna impedance and the converter circuit impedance (Zulkifli et al, 2015a;Sampe et al, 2016).…”

Section: Fig 2 Rf Energy Harvesting Systemmentioning

confidence: 99%

MEMS Based RF Energy Harvester for Battery-Less Remote Control: A Review

Yunus¹,

Sampe²,

Yunas³

et al. 2017

American Journal of Applied Sciences

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The paper deals with the growing interest of energy harvesting systems due to great development in many new emerging technologies in electronics and telecommunication. The research focuses particularly about rectenna element comprises of antenna, impedance matching and rectifier. The rectenna is applied under Micro-Electromechanical-System (MEMS) technology design use in Radio Frequency (RF) energy harvester. MEMS is a technology of miniaturization that has been mostly adopted from integrated circuit industry together on a chip that are made using micro fabrication technique and applied for not only electrical systems. RF ambient source is considered over other ambient sources because RF can be broadcasted by various wireless systems in unlicensed frequency bands. However, the amount of energy captured from the ambient RF is extremely low which need improvements and more Direct Current (DC) voltage generated from RF energy harvester. For this motivation, a dual band MEMS rectenna is proposed for maximizing the efficiency. Power Management Unit (PMU) is interposed between MEMS rectenna and a load. The system is equipped with temporary energy storage and voltage regulator to produce optimum output voltage. The paper proposes a system that is designed and simulated using PSpice software and modeled in Mentor Graphic. The stated result from RF MEMS energy harvester is to provide functional conversion efficiency and reliable energy harvesting system to reach 1.5-3.0 V output voltage for operating frequency at 1.9 and 2.45 GHz from RF input power at -20 dBm with reveal approximately 100% improvement over other existing designs. The conceptual design can be the platform for innovative developments in recent technologies to achieve wireless transmission powered only by RF MEMS energy harvester.

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“…Energy harvester plays a vital role in producing an input power supply for low power electronic devices rather than a battery. 1 The energy harvesting technique is essential in prolonging the period and reducing power consumption. In recent years, radiofrequency (RF) energy harvesting research works have been carried out to increase the efficiency of the power level.…”

Section: Introductionmentioning

confidence: 99%

“…Energy harvester plays a vital role in producing an input power supply for low power electronic devices rather than a battery 1 . The energy harvesting technique is essential in prolonging the period and reducing power consumption.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of radiofrequency energy harvester with bandpass filter for ultra‐low power applications

Inbaraj¹,

Kailasam²,

Sankararajan³

2022

Int J Numerical Modelling

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Nowadays, radiofrequency (RF) is a vital component of harvesting RF energy from the ambient environment to power ultra‐low‐power applications in wireless communication. This article presents an RF energy harvesting system for a frequency range of (0.58–3 GHz) to harvest RF energy from the ambient source. The system's design consists of four major modules: a coplanar waveguide antenna (CPW), a bandpass filter (BF), an L‐type impedance matching network, and a four‐stage Villard voltage multiplier (VM) circuit. First, A CPW antenna is designed suitably to harvest RF energy from GSM 900/1800, 3G, and Wi‐Fi frequency bands. Next, a BF is designed and simulated in Agilent advanced design system software for the same frequency range to attenuate the RF signals that are not in this specific frequency range. Then, an RF power conditioning circuit prototype comprising an L‐type impedance matching network and a four‐stage Villard VM circuit was integrated and fabricated on an FR4 substrate. The four‐stage rectifier circuit is designed to convert the RF signal into DC output voltage and maximize the output voltage. The performance of the RF energy harvesting system is validated through simulation and measured results. All the RF energy harvesting system elements have been connected, and the prototype is tested at various indoor and outdoor locations of Sri Sivasubramaniya College of Engineering, Chennai, India. It is observed that the prototype system can harvest energy from input power levels as low as −30 dBm. The simulated results of the RF energy harvesting system achieve an output voltage of 2.5 V with a maximum efficiency of 62.5%. The harvested output voltage at a distance of 100 m from the RF cell tower at the indoor location is 59.5 mV and at the outdoor location 271.6 mV. The harvested output voltage is used to energies the ultra‐low‐power applications. Finally, the performance of the RF energy harvesting system is analyzed by statistical techniques. The two types of analysis are Taguchi's method and analysis of variance. The RF energy harvester impact factors are VM and BF. A statistical test (P) is used to determine the significant factors on the RF output voltage.

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Ultra Low Power Hybrid Micro Energy Harvester Using Rf, Thermal and Vibration for Biomedical Devices

Cited by 8 publications

References 17 publications

Ultra-Low Power RF Energy Harvesting of 1.9GHz & 2.45GHz Narrow-Band Rectenna for Battery-Less Remote Control

Ultra-Low Power RF Energy Harvesting of 1.9GHz & 2.45GHz Narrow-Band Rectenna for Battery-Less Remote Control

MEMS Based RF Energy Harvester for Battery-Less Remote Control: A Review

Statistical analysis of radiofrequency energy harvester with bandpass filter for ultra‐low power applications

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