A double sideband continuous wave radar for monitoring carotid artery wall movements

A double sideband continuous wave (DSCW) radar for the monitoring of artery wall movements has been designed and realized. The radar is based on a transceiver, a coherent demodulator and a bow-tie antenna. A feasibility study suggested the 1-3 GHz band as the most suitable for the proposed application. The DSCW radar has been simulated with the microwave office CAD and has been implemented with discrete components. Responses measured on the realized radar are in good agreement with simulations. When the radar antenna is placed in contact with a carotid artery model the radar is able to measure a signal proportional to the artery wall movements.