A novel 24GHz microstrip array module design for bioradars

In this paper, a new millimeter-wave transmitting/receiving antenna module for bioradar sensors was proposed. This antenna was designed operating at 24 GHz for remote contactless evaluation of the human organism adaptation to physical and mental stress. This module was divided into two parts, both of which were implemented by a microstrip array antenna sub-module. The feed networks were also optimized for impedance matching to eliminate the signal self-mixing. This module had a dimension of 56×64 mm2, which made it easy to install on the roofs above the beds to monitor the heart movement activity and respiration pattern variability of burned patients or people in stress. The simulation results showed its good performance in bioradar applications.