Research Interests
My research experience began at the beginning of my college career. I participated in RAMP (Research, Academics and Mentoring Pathways) the summer before my freshman year (2018) which sparked my interest in research. I have done research focused on acoustics as well as data analitics and cyber physical systems.In a recent publication ‘Analysis of a passive radio frequency excited acoustic transducer’ that I co-authored we investigated the physical processes that govern the operation of a passive acoustic transducer are analyzed and modeled. The wireless battery-free transducer derives its power from an externally applied electromagnetic field generated by a radio transmitter. The audio signal is encoded in the backscattered electromagnetic field. Electro-mechano-acoustical analogies are developed and presented. Power generation, sound transduction, and radio frequency backscatter transmission of the audio signal are analyzed. The resonant frequency of the passive acoustic transducer derived from this analysis is comparable to those reported in the literature.
Education
- Masters, Electrical and Computer Engineering, University of Massachusetts Lowell, January 2022 – Current
- Graduate: Bachelors, Electrical and Computer Engineering, University of Massachusetts Lowell, September 2018 – December 2021
Selected Publications
- Lejun Hu, Charles Thompson, Grace Remillard, and Kavitha Chandra , “Analysis of a passive radio frequency excited acoustic transducer”, The Journal of the Acoustical Society of America 150, 1133-1139 (2021)
- Charles Thompson, Lejun Hu, Grace Remillard, and Kavitha Chandra , “Analysis of a passive radio frequency excited acoustic transducer”, Proc. Mtgs. Acoust. 36, 030001 (2019)
- “Removing MMIC Outliers in Production Test Using Real-Time Principal Component Analysis”, Microwave Journal, November 2019
Other Activities
- RAMP Mentor (Summer of 2020 and 2021). Worked with incoming engineering students through the RAMP Program. In 2020 I worked with the students on aruduino based programming and project. In 2021 I helped lead the students through a face tracking project using open CV.
Affiliated Clubs and Organizations
- RAMP: Research Academics & Mentoring Pathways - I was a 2018 Participant in the RAMP program. I came back to be a mentor for 2020 and 2021
- Institute of Electrical and Electronic Engineering (IEEE) - I was member of the IEEE as an undergraduate.