My ultimate goal is to come out with the knowledge of being able to create electronic non-invasive medical devices. I'm more interested, in say, detecting chemical compounds in the blood. From the course listing, it seems that Electromagnetics will prepare me for creating antennas, wireless communication devices, etc. There is one course that has to do with EM wave propagation through media, such as geophysical and biological. But how useful do you think learning EM will be for my goal? Or do you think I should choose a different track, but take electives in EM? I would have chosen Biomedical for my Master's but I'm a bit put off since my undergrad is in Biomedical, and I feel it's too broad to really be useful.