Article
Engineering, Electrical & Electronic
Xianbo Cao, Hiroyasu Sato, Kai-Da Xu, Wen Jiang, Shuxi Gong, Qiang Chen
Summary: Wireless power transfer technology has played a crucial role in the development of biomedical devices. A systematic method to improve the efficiency of wireless power transfer is proposed, which includes the application of a Fresnel zone plate and an air layer-artificial matching layer to reduce propagation loss and interface reflection. Simulation and experimental results demonstrate that the proposed method significantly enhances the efficiency of wireless power transfer.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Icaro V. Soares, Mingxiang Gao, Erdem Cil, Zvonimir Sipus, Anja K. Skrivervik, John S. Ho, Denys Nikolayev
Summary: This article proposes an approach to analyzing efficiency in anatomical models, which is validated using a theoretical spherical wave expansion analysis. The results show that a magnetic receiver outperforms an electric one in the near-field operation, while both sources are equally effective in the far-field range. The maximum efficiency is achieved in the mid-field with an optimum frequency between 1 and 5 GHz depending on the implantation depth. Receiver orientation also significantly affects the efficiency. The proposed approach is applied to a case of a deep-implanted pacemaker powered wirelessly by an on-body transmitter and subjected to stochastic misalignments. Design guidelines for optimal implantable WPT systems are established based on the results obtained.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Review
Materials Science, Multidisciplinary
Yiqun Liu, Qi Yu, Li Yang, Yue Cui
Summary: This article discusses the challenges in selecting suitable materials for implantable electronic devices and provides answers to related questions. By exploring various materials and their applications, new opportunities are provided for the construction of future implantable electronic devices and disease diagnosis and therapy.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Chemistry, Multidisciplinary
Chan Wang, Qiongfeng Shi, Chengkuo Lee
Summary: This review provides an overview of the development of IMDs based on triboelectric nanogenerators, including self-powered biosensors, in vivo energy harvesting devices, and direct electrical stimulation therapy devices. Future challenges and opportunities are discussed to enhance output performance, develop advanced triboelectric nanogenerators with multifunctional materials, and self-driven close-looped diagnosis and treatment systems.
Article
Materials Science, Multidisciplinary
Sayemul Islam, Eungyoul Oh, Chaerin Jun, Jungkwun Kim, Won Seok Chang, Seunghyun Song, Albert Kim
Summary: This paper presents a new ultrasonic powering scheme that uses three-dimensional polyhedral shapes as receivers. The experimental results show that receivers with polyhedral shapes have higher power density and efficiency compared to traditional diced PZT receivers. This innovative scheme provides a revolutionary solution for implantable biomedical devices.
ACS MATERIALS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
D. Elsheakh, S. Kayed, H. Shawkey
Summary: This paper presents the design of a single chip with two separate integrated antennas for implantable biomedical applications. One antenna is designed for multiple channels data communication, while the other is for RF energy harvesting. The two antennas have different structures with orthogonal polarization to achieve low mutual coupling and negligible interaction between them.
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
(2021)
Article
Engineering, Biomedical
Nima Soltani, Maged ElAnsary, Jianxiong Xu, Jose Sales Filho, Roman Genov
Summary: A tutorial and comprehensive guide for the design of planar spiral inductors with maximum energy delivery in biomedical implants is presented in this paper. By comparing the proposed methodology with the conventional approach, it is demonstrated that the presented technique increases the maximum deliverable power significantly while maintaining moderate link efficiencies.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Muath Al-Hasan, Penchala Reddy Sura, Amjad Iqbal, Jun Jiat Tiang, Ismail Ben Mabrouk, Mourad Nedil
Summary: This paper proposes a miniaturized dual-band implantable antenna operating at 0.91 GHz and 2.45 GHz, with performances analyzed in different parts of the human body and low SAR. The compact antenna achieves maximum input power of 3.32 mW at 0.91 GHz and 4.37 mW at 2.45 GHz, making it the most compact dual-band implantable antenna reported in the literature for these frequency bands.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2021)
Review
Biophysics
H. Dinis, P. M. Mendes
Summary: Microfabrication techniques, sensor and actuator miniaturization, optimization of microelectronic circuits, and wireless communication capabilities have enabled the development of implants for previously impossible applications. However, the scaling down of implants raises challenges in powering them, leading to emerging energy sources that do not rely on batteries. This paper reviews recent implantable bioelectronic devices that employ alternative powering methods and discusses their suitability for future devices.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Amjad Iqbal, Muath Al-Hasan, Ismail Ben Mabrouk, Abdul Basir, Mourad Nedil, Hyoungsuk Yoo
Summary: This article introduces an efficient WPTS for multipurpose biomedical implants, which includes an implantable antenna, rectifier, and WPT Tx. The system can transfer data and recharge devices simultaneously. The components operate at 1470 MHz, with the self-diplexing antenna also working at 915 MHz.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Article
Chemistry, Analytical
Yongho Lee, Shinil Chang, Jungah Kim, Hyunchol Shin
Summary: A MedRadio RF receiver integrated circuit with improved resilience to out-of-band (OOB) orthogonal frequency division modulation (OFDM) blocker has been designed in 65 nm CMOS technology. The design utilizes low-intermediate frequency (IF) architecture and incorporates IM2 calibration techniques at the mixer gate bias and TIA dc offset tuning to significantly enhance OOB carrier-to-interference ratio (CIR) performance by 4-11 dB. The measured maximum tolerable CIR ranges between -40.2 and -71.2 dBc for two-tone blocker condition and between -70 and -77 dBc for single-tone blocker condition.
Article
Engineering, Electrical & Electronic
Abdullah J. Alazemi, Amjad Iqbal
Summary: A compact MIMO implantable antenna based on meandered resonators is proposed in this article, featuring small size and high data rates. The antenna achieves compactness through the use of meandered resonators and slots in the ground plane, while ensuring high data rates with a MIMO configuration and optimized distance between elements.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Chemistry, Multidisciplinary
Geumbee Lee, Mark D. D. Does, Raudel Avila, Juyeon Kang, Kevin D. D. Harkins, Yunyun Wu, William E. E. Banks, Minsu Park, Di Lu, Xinqiang Yan, Jong Uk Kim, Sang Min Won, Adam G. G. Evans, Jeremy T. T. Joseph, Christopher L. L. Kalmar, Alonda C. C. Pollins, Huseyin Karagoz, Wesley P. P. Thayer, Yonggang Huang, John A. A. Rogers
Summary: Magnetic resonance imaging (MRI) is commonly used for clinical care and medical research. Surgically implanted bioresorbable circuits made of organic and inorganic materials can enhance the signal-to-noise ratio (SNR) in MRI studies without the need for surgical extraction. These circuits have the ability to select resonant frequencies to meet MRI specifications and improve imaging capabilities. Imaging demonstrations showed potential for post-surgical monitoring and evaluating recovery processes.
Article
Engineering, Biomedical
Gyeongho Namgoong, Eunho Choi, Woojin Park, Bonyoung Lee, Hyunjun Park, Hyunggun Ma, Franklin Bien
Summary: This paper proposes a fully integrated active rectifier with triple feedback loops to enhance power conversion efficiency by calibrating gate transition timing and power switch size. The effectiveness and robustness of the two-dimensional calibration were verified through measurements, achieving peak voltage conversion ratio and peak PCE of 97.6% and 95.0%, respectively, at R-L = 500 omega.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2021)
Article
Chemistry, Multidisciplinary
Ah-Hyoung Lee, Jihun Lee, Vincent Leung, Arto Nurmikko
Summary: This study presents a programmable microchip design for biomedical applications, addressing the challenges of highly integrated and miniaturized circuits. The design incorporates metal fuses and anti-fuses on silicon microchips, allowing for hardware programmability through post-foundry editing. This innovative technique accelerates the chip development process and enables the exploration of multiple internal circuit parameters.
Article
Engineering, Electrical & Electronic
Chi-Lin Tsai, Kuan-Wei Chen, Chin-Lung Yang
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2015)
Article
Engineering, Electrical & Electronic
Chieh-Sen Lee, Chin-Lung Yang
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2015)
Article
Chemistry, Analytical
Chin-Lung Yang, Gou-Tsun Zheng
Article
Engineering, Electrical & Electronic
Chin-Lung Yang, Chieh-Sen Lee, Kuan-Wei Chen, Kuan-Zhou Chen
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2016)
Article
Engineering, Electrical & Electronic
Chin-Lung Yang, Chung-Kai Chang, Shuenn-Yuh Lee, Soon-Jyh Chang, Lih-Yih Chiou
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2017)
Article
Engineering, Electrical & Electronic
Chieh-Sen Lee, Chin-Lung Yang
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
(2014)
Article
Engineering, Electrical & Electronic
Chieh-Sen Lee, Chin-Lung Yang
IEEE SENSORS JOURNAL
(2014)
Article
Integrative & Complementary Medicine
Chi-Chun Chen, Shih-Chi Lin, Ming-Shing Young, Chin-Lung Yang
JOURNAL OF ALTERNATIVE AND COMPLEMENTARY MEDICINE
(2014)
Article
Multidisciplinary Sciences
Chi-Chun Chen, Ming-Wen Chang, Ching-Ping Chang, Wen-Ying Chang, Shin-Chieh Chang, Mao-Tsun Lin, Chin-Lung Yang
Article
Automation & Control Systems
Chin-Lung Yang, Kuan-Wei Chen, Chung-De Chen
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2019)
Article
Engineering, Electrical & Electronic
Guan-Wei Fang, Ching-Yao Huang, Chin-Lung Yang
IEEE JOURNAL OF ELECTROMAGNETICS RF AND MICROWAVES IN MEDICINE AND BIOLOGY
(2020)
Article
Engineering, Electrical & Electronic
Tao-Cheng Yu, Wei-Hsiang Huang, Chin-Lung Yang
IEEE JOURNAL OF ELECTROMAGNETICS RF AND MICROWAVES IN MEDICINE AND BIOLOGY
(2019)
Proceedings Paper
Computer Science, Hardware & Architecture
Ching-Wen Yang, Chin-Lung Yang
2014 IEEE WIRELESS POWER TRANSFER CONFERENCE (WPTC)
(2014)
Proceedings Paper
Engineering, Electrical & Electronic
Chiu-Yueh Huang, Chi-Lin Tsai, Chin-Lung Yang
2014 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI)
(2014)
Proceedings Paper
Engineering, Biomedical
Wen-Ying Chang, Chi-Chun Chen, Chin-Lung Yang
2014 IEEE INTERNATIONAL SYMPOSIUM ON BIOELECTRONICS AND BIOINFORMATICS (ISBB)
(2014)