时间：2022年7月13日（周三） 16:00-16:30

Time: 16:00-16:30, Wednesday, July 13^th, 2022

线上：腾讯会议号 359-848-390

Online: #TencentMeeting: 359-848-390

主讲嘉宾/Speaker：

Dr. Mahdi Tarkhan

Postdoctoral Researcher

School of Engineering

Westlake University

主讲人简介/Biography:

Mahdi Tarkhan was born in Zahedan, Iran in 1984. He received the M.Sc. degree in digital electronics from Sharif University of Technology, Tehran, Iran, and Ph.D. degree in analog electronics from Ferdowsi University of Mashhad, Iran, in 2009 and 2018, respectively. In 2020, he joined the CenBRAIN Neurotech., School of Engineering, Westlake University, Hangzhou, China, as a postdoctoral fellow researching biological circuits and systems. His current research involves the design of low-noise and low-power analog and mixed-signal circuits and systems for biomedical applications.

讲座摘要/Abstract:

Brain disorders affect a large number of people. The aim of biomedical implants and wearable devices is to record the brain's activity and take control actions in order to improve the quality of life of patients with such conditions. Nevertheless, signal acquisition channels are the first step toward realizing this system. A high-quality brain signal recording requires a sophisticated signal chain with low noise. It is however not always easy to design low-noise amplifiers, especially for biomedical applications where transistor flicker noises are very strong. I have proposed various solutions to these problems in a series of research works. One of these projects involves optimizing single transistors based on their noise performance. I also proposed a novel low-noise amplifier whereby the trade-off between speed, power consumption, and noise can be adjusted by modifying a few design parameters. In the last part, I proposed a design methodology for achieving small size and low noise multi-stage analog front ends by optimizing the noise distribution between the stages.

讲座联系人/Contact:

工学院葛琼颖

geqiongying@westlake.edu.cn