ArticleIEEE transactions on biomedical circuits and systems2018
End-to-End Design of Efficient Ultrasonic Power Links for Scaling Towards Submillimeter Implantable Receivers.
Article in IEEE transactions on biomedical circuits and systems, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 53 citations in OpenAlex.
- Enhancing Ultrasound Power Transfer: Efficiency, Acoustics, and Future Directions.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- High-Efficiency Wireless Power Transfer System Based on Low-Frequency AlScN Piezoelectric Micromechanical Ultrasonic Transducers for Implantable Medical Devices.Micromachines · 2025Article
- An AlScN Piezoelectric Micromechanical Ultrasonic Transducer-Based Power-Harvesting Device for Wireless Power Transmission.Micromachines · 2024Article
- Magnetoelectrics enables large power delivery to mm-sized wireless bioelectronics.Journal of applied physics · 2023Article
- A Study on Ultrasonic Wireless Power Transfer With Phased Array for Biomedical Implants.IEEE transactions on biomedical circuits and systems · 2023Article
- Gut Microbiome Redox Sensors With Ultrasonic Wake-Up and Galvanic Coupling Wireless Links.IEEE transactions on bio-medical engineering · 2023Article
- Modeling and Measurement of an Ultrasound Power Delivery System for Charging Implantable Devices Using an AlN-Based pMUT as Receiver.Micromachines · 2022Article
- An RF-Ultrasound Relay for Adaptive Wireless Powering Across Tissue Interfaces.IEEE journal of solid-state circuits · 2022Article
- An ultrasound-induced wireless power supply based on AlN piezoelectric micromachined ultrasonic transducers.Scientific reports · 2022Article
- On-demand electrochemically controlled compound release from an ultrasonically powered implant.RSC advances · 2022Article
- Floating EMG sensors and stimulators wirelessly powered and operated by volume conduction for networked neuroprosthetics.Journal of neuroengineering and rehabilitation · 2022Article
- Design and Optimization of Ultrasonic Links With Phased Arrays for Wireless Power Transmission to Biomedical Implants.IEEE transactions on biomedical circuits and systems · 2022Article
- Ultrasonic Implant Localization for Wireless Power Transfer: Active Uplink and Harmonic Backscatter.IEEE International Ultrasonics Symposium : [proceedings]. IEEE International Ultrasonics Symposium · 2019Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
We present an analytical framework for optimizing the efficiency of ultrasonic wireless power links for implantable devices scaled down to sub-mm dimensions. Key design insights and tradeoffs are considered for various parameters including the operating frequency, the transmission depth, the size of the transmitter, the impedance and the aperture efficiency of the miniaturized receiver, and the interface between the receiver and the power recovery chain on the implant. The performance of spherically focused transducers as ultrasonic transmitters is analyzed to study the limits and the tradeoffs. Two optimization methods are presented: "Focal Peak" sets the focus of transducers at target depths, and "Global Maximum" maximizes the efficiency globally with off-focus operation. The results are also compared to phased array implementations. To investigate the efficiency of implants, miniaturized receivers made from single crystalline piezoelectric material, PMN-PT, are used as they have resonances in the derived optimal carrier frequency range (∼1-2 MHz). A methodology to achieve an efficient interface to the power electronics is then provided using an optogenetic stimulator as an example platform. The analytical results are verified through both simulations and measurements. Finally, an example ultrasonic link using a spherical transmitter with a radius of 2 cm is demonstrated; link efficiencies of 1.93-0.23% are obtained at 6-10 cm depths with sub-mm receivers for the optogenetic application.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.