This paper describes a new microwave device designed for non-contact heart rate monitoring. This system uses a vector network analyzer and a horn antenna to send continuous wave signals to the person's chest. By analyzing conduction signals and interference signals at different levels, information about chest movement is extracted so that heart rate can be determined. The main purpose of this study is to make a comparative analysis of one and two microwave antennas, especially when the subject holds his breath. Both systems use different signal processing methods, including advanced analysis and fast Fourier transform (FFT). The results from these methods were carefully analyzed and compared to evaluate their effectiveness in accurately extracting heart rate. This research contributes to the advancement of non-invasive biomedical diagnostics by providing a better understanding of the functioning of microwave systems for measuring heart rate. The research results are presented in this article with the aim of understanding the potential use of microwave technology in healthcare and paving the way for further development of the method. Be careful of physical contact.
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Gaur et al. (2024) studied this question.
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