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Research on non-invasive blood glucose monitoring using microwave cavity

In recent years there has been a growing interest in self-monitoring of health issues using electronics. One key area is that of measuring blood glucose levels for, in particular, diabetic patients. The existing glucose monitoring methods require abstracting a small amount of blood. The current research is focused on non-invasive techniques.

The recent research demonstrated the possibility of using a microwave cavity to measure the blood glucose level non-invasively. In this approach the patient merely inserts their finger into a cylindrical cavity and a measurement is made.

The aim of this project is to develop a prototype of a non-invasive blood glucose monitor based on microwave cavity perturbation, featuring in high accuracy, small volume, low power consumption, convenient operation and portability.

The objectives of the project are

  • (1) To further investigate the non-invasive microwave cavity perturbation technique and the feasibility of applying it to clinical application.
  • (2) To develop a miniaturised blood glucose sensor to test the viability of this technology.
  • (3) To design and implement a prototype which will facilitate improved accuracy and reliability.

The suitable candidate may have Master degree in Electronic and Communications Engineering and BEng degree in Electronic and Electrical Engineering with upper second or first class.


R. Dobson, R. Wu and P. Callaghan, “Blood glucose monitoring using microwave cavity perturbation”‘, Electronics Letters, Volume: 48 , Issue: 15, 2012 , pp905 – 906.

How to apply

If you are interested in applying for the above PhD topic please follow the steps below:

  1. Contact the supervisor by email or phone to discuss your interest and find out if you woold be suitable. Supervisor details can be found on this topic page. The supervisor will guide you in developing the topic-specific research proposal, which will form part of your application.
  2. Click on the 'Apply here' button on this page and you will be taken to the relevant PhD course page, where you can apply using an online application.
  3. Complete the online application indicating your selected supervisor and include the research proposal for the topic you have selected.

Good luck!

This is a self funded topic

Brunel offers a number of funding options to research students that help cover the cost of their tuition fees, contribute to living expenses or both. See more information here: https://www.brunel.ac.uk/research/Research-degrees/Research-degree-funding. The UK Government is also offering Doctoral Student Loans for eligible students, and there is some funding available through the Research Councils. Many of our international students benefit from funding provided by their governments or employers. Brunel alumni enjoy tuition fee discounts of 15%.

Meet the Supervisor(s)

Ruiheng Wu - Dr Ruiheng Wu received his BEng and MEng degrees from Tianjin University, China, in 1982 and 1986 respectively. Following 10 years as a faculty member in the Department of Electronic Engineering at Tianjin University and two years research at the City University of Hong Kong, he joined the Analogue Circuit Design Research Group at Oxford Brookes University as a PhD student in January 1999, where he completed his PhD thesis entitled 'Design of Wide Bandwidth High Linearity Amplifiers'. In January 2002, he joined the School of Engineering, University of Greenwich, where he worked as a senior lecturer until January 2018. Between January 2018 and January 2020, Dr Wu worked in the School of Engineering and the Built Environment, Birmingham City University. Currently, Dr Wu is a senior lecturer in electronic and electrical engineering, Department of Electronic and Computer Engineering, Brunel University London. Dr Wu is a senior member of the IEEE and a member of the IET.

Related Research Group(s)

Electronic Systems

Electronic Systems - Investigating processes and mechanisms found in nature to inspire alternative approaches to the design and implementation of intelligent electronic systems.