Textile Cardiopulmonary Antenna Design

Vital signs monitoring is a crucial medical application to monitor the health status of a subject. The existing methods used so far are based on the usage of intrusive and rigid devices, such as the Holter monitors, which are uncomfortable for the subject. Textile antennas can be a solution since they are more comfortable and less intrusive for the user. This paper presents a textile antenna with slots designed to detect vital signs. The textile antenna was designed to operate at 433.92 MHz and close to a human body, being able to detect vital signs through the variation in the reflection coefficient phase of the antenna. The results obtained proved that the antenna is capable of detecting respiratory signs.