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International Journal of Antennas and Propagation
Volume 2015, Article ID 570870, 5 pages
Research Article

Phantoms for Development of Microwave Sensors for Noninvasive Blood Glucose Monitoring

Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Zikova 4, 166 36 Prague, Czech Republic

Received 24 November 2014; Revised 16 January 2015; Accepted 20 January 2015

Academic Editor: Chih-Hua Chang

Copyright © 2015 Jan Vrba et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A suitability of two different liquid phantoms of blood-glucose solutions as phantoms for development of microwave sensors for noninvasive blood glucose monitoring is compared. The two phantoms are physiological saline-glucose and pig blood-glucose solutions. For this purpose a simple microwave sensor is developed for in vitro monitoring of blood glucose levels. The sensor consists of a microstrip antenna and of a small rectangular container on the top of the antenna. The container is filled with one of the liquid phantoms. Both phantoms with different glucose concentrations ranging from 0 to 500 mg/dL are considered. Dependence of sensor’s resonant frequency on glucose concentration of LUTs is both estimated by aid of numerical simulations and measured. The results are discussed and compared with some results reported in the literature.