MEMS power generator with transverse mode thin film PZT

Jeon, Youngbae; Sood, R.; Jeong, Jaehwa; Kim, S.-G.

doi:10.1016/j.sna.2004.12.032

Cited by 717 publications

(437 citation statements)

References 10 publications

Supporting

Mentioning

432

Contrasting

Unclassified

Order By: Relevance

“…In a floor or wall integration scenario, being the typical deployment configuration of the UWB SIW cavity-backed slot antenna on cork substrate, thermal energy harvesting may not be relevant. Then, vibrational energy harvesting based on the piezoelectric effect may be used instead [16]. To ensure stable performance of the SIW antennas after hardware integration, the solar cells are attached to the conducting parts of the antenna without extending beyond them, and without covering the radiating element.…”

Section: B) Energy Harvesting and Power Management Hardwarementioning

confidence: 99%

SIW antennas as hybrid energy harvesting and power management platforms for the internet of things

Caytan

Agneessens

Rogier

2016

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

A novel antenna-harvester co-design paradigm is presented for wireless nodes operating in an Internet of Things context. The strategy leads to compact and highly-integrated units, which are able to set up a reliable and energy-efficient wireless communication link, and to simultaneously harvest energy from up to three different sources, including thermal body energy, solar and artificial light. The core of the unit consists of a substrate-integrated-waveguide (SIW) antenna. Its surface serves as a platform for the flexible energy harvesting hardware, which also comprises the power management system. To demonstrate the approach, two different SIW cavity-backed slot antennas and a novel compact dual linearly polarized SIW antenna are presented. These topologies facilitate the integration of additional hardware without degrading performance. In the meantime, they enable comfortable integration into garments or unobtrusive embedding into floors or walls. Measurements on prototypes validate the integration procedure by verifying that the integrated hardware has a negligible influence on the performance of all discussed SIW antennas. Finally, measurements in four well-chosen indoor scenarios demonstrate that a hybrid energy-harvesting approach is necessary to obtain a more continuous flow and a higher amount of scavenged energy, leading to a higher system autonomy and/or reduced battery size.

show abstract

Section: B) Energy Harvesting and Power Management Hardwarementioning

confidence: 99%

SIW antennas as hybrid energy harvesting and power management platforms for the internet of things

Caytan

Agneessens

Rogier

2016

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

show abstract

“…At volumes smaller than 0.5 cm 3 the electromagnetic transformation factor is reduced abruptly [61]. The piezoelectric mechanism has the highest energy conversion efficiency [63,64] and is the most appropriate technology for the scale of MEMS devices [65,66].…”

Section: Mems Devices Based On Piezoelectric Transduction Mechanismmentioning

confidence: 99%

“…It is a reason to use this mode but the structure shown at Figure 29 is not feasible since the direction of the induced electric field in 33 mode is parallel to the stress direction. The interdigitated electrode, IDE, configuration presented by Jeon et al at [66] and Park et al at [87] enables to employ the 33 mode and discards the bottom electrode layer, Figure 30. Therefore, the electrode lengths and shapes are important parameters that affect the output voltage due to the non uniformity of the strain along the beam [88].…”

Section: Piezoelectric Energy Harverstersmentioning

confidence: 99%

MEMS Technologies for Energy Harvesting

Domínguez-Pumar

Pons-Nin

Chávez-Domínguez

2016

Nonlinearity in Energy Harvesting Systems

View full text Add to dashboard Cite

The objective of this chapter is to introduce the technology of Microelectromechanical Systems, MEMS, and its application to emerging energy harvesting devices. The chapter begins with a general introduction to the most common MEMS fabrication processes. Next, the chapter follows with a survey of design mechanisms implemented in MEMS energy harvesters to provide nonlinear mechanical actuations. Mechanisms to produce bistable potential will be studied, such as by placing fixed magnets, buckling of beams, or by using slightly slanted clamped-clamped beams. Other nonlinear mechanisms are studied such as impact energy transfer, or the design of nonlinear springs. Finally, due to their importance in the field of MEMS and their application to energy harvesters, an introduction to the actuation with piezoelectric materials is made. Examples of energy harvesters found in the literature using this actuation principle are also presented.

show abstract

“…Many unimorph cantilever-type harvesters (i.e. consisting of a piezoelectric film and an elastic layer to support the piezoelectric film and to control vibration characteristics) have been proposed for PVEHs [12–16]. Because the configuration of a unimorph cantilever is simple and the fabrication process is relatively easy, many unimorph harvesters are fabricated using piezoelectric materials such as lead zirconate titanate (PZT) and polyvinylidene fluoride (PVDF).…”

Section: Introductionmentioning

confidence: 99%

Bimorph piezoelectric vibration energy harvester with flexible 3D meshed-core structure for low frequency vibration

Tsukamoto

Umino

Shiomi

et al. 2018

Science and Technology of Advanced Materials

View full text Add to dashboard Cite

This paper proposes a bimorph piezoelectric vibration energy harvester (PVEH) with a flexible 3D meshed-core elastic layer for improving the output power while lowering the resonance frequency. Owing to the high void ratio of the 3D meshed-core structure, the bending stiffness of the cantilever can be lowered. Thus, the deflection of the harvester and the strain in the piezoelectric layer increase. According to vibration tests, the resonance frequency is 15.8% lower and the output power is 68% higher than in the conventional solid-core PVEH. Compared to the solid-core PVEH, the proposed meshed-core PVEH (10 mm × 20 mm × 280 μm) has 1.3 times larger tip deflection and the maximum output power is 24.6 μW under resonance condition at 18.7 Hz and 0.2G acceleration. Hence it can be used as a power supply for low-power-consumption sensor nodes in wireless sensor networks.

show abstract

MEMS power generator with transverse mode thin film PZT

Cited by 717 publications

References 10 publications

SIW antennas as hybrid energy harvesting and power management platforms for the internet of things

SIW antennas as hybrid energy harvesting and power management platforms for the internet of things

MEMS Technologies for Energy Harvesting

Bimorph piezoelectric vibration energy harvester with flexible 3D meshed-core structure for low frequency vibration

Contact Info

Product

Resources

About