Investigation of time-domain microwave radar with breast clinic patients

In this paper, we present improvements toward a wearable prototype for breast health monitoring using microwaves. The system operation is based on multistatic radar, with the 16 sensors embedded in a wearable bra. Measurements are recorded in the time-domain, over a frequency range covering 2 - 4 GHz. A wearable system offers several advantages over a table-based system, including lower-cost, adaptability to specific patient needs, and no need for an immersion medium between the breast and the antennas (which in turn reduces loss and uncertainty in the signal pathways). The benefits of the final achieved prototype are discussed in detail, and we discuss our experience using it on patients.