A new direction for biosensing: RF sensors for monitoring cardio-pulmonary function

Ju Gao, Siddharth Baskar, Diyan Teng, Mustafa al'Absi, Santosh Kumar, Emre Ertin

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Scopus citations


Long-term monitoring of physiology at large-scale can help determine potential causes and early biomarkers of chronic diseases. Physiological monitoring today, however, requires wearing of sensors such as electrodes for ECG and belt around lungs for respiration, and is unsuitable for monitoring of patients and healthy adults over multiple years. In this chapter, we review advances in a novel sensing modality using radio frequency (RF) waves that can provide physiological measurements without skin contact in both lab and field environments. This chapter presents fundamentals of RF biosensing with experimental results of a new experimental bioradar platform illustrating the concepts. The focus is on new approaches to monitor heart motion and respiratory effort. Experimental results using both an articulated heart phantom and human subjects show that RF sensing modality can match the performance of state-of-the-art physiological monitoring devices in terms of retrieving features and statistics of clinical significance.

Original languageEnglish (US)
Title of host publicationMobile Health
Subtitle of host publicationSensors, Analytic Methods, and Applications
PublisherSpringer International Publishing
Number of pages24
ISBN (Electronic)9783319513942
ISBN (Print)9783319513935
StatePublished - Jul 12 2017

Bibliographical note

Publisher Copyright:
© Springer International Publishing AG 2017.


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