ISEL - Instituto Superior de Engenharia de Lisboa
Permanent URI for this community
Browse
Browsing ISEL - Instituto Superior de Engenharia de Lisboa by advisor "Albuquerque, Daniel"
Now showing 1 - 1 of 1
Results Per Page
Sort Options
- Robust cardiopulmonary antenna design for any body mass indexPublication . Cardoso, João Filipe Ferreira da Silva Tenente; Pinho, Pedro; Albuquerque, DanielWith the advancement of wireless diagnostic and treatment technologies, antennas implanted inside and outside the human body are now widely used. The use of antennas on the body, along with other technologies, presents itself as an innovative method for detecting and monitoring vital signs. These antennas can be placed in direct contact with the human body or on clothing making vital signs monitoring with these methods more comfortable and less invasive when compared to traditional methods, allowing home monitoring of elderly patients or high risk workers such as police, firefighters and military personnel. A gap was found in the literature regarding the development of a standard antenna model that can be used by anyone, regardless of their physiog nomy. In this dissertation, a robust high bandwidth antenna was developed to operate in the ISM frequency band, namely at 2.45 GHz, capable of monitoring vital signs in any subject. In order to increase its bandwidth, parasitic patches placed on top of the radiating element were used to obtain resonances adjacent to the center frequency, thus increasing the bandwidth of the antenna. After the antenna design, the antenna was simulated, built, and the vital signs monitoring of 5 subjects with different body physiognomies was performed. The effectiveness of the chosen design was proven, being able to monitor the respiratory signal in all test subjects.