Interactions of EM field with biological systems are
utilized in the area of therapy (oncology, physiotherapy,
urology and so on) from late seventieth of last century. Wide
utilization of microwave thermotherapy can be observed in the
countries of EU, USA, Russia, China and Japan. Our activities
in microwave thermotherapy in former Czechoslovakia started
in the year 1981. Further, during the last twenty years there
are many research activities oriented to medical diagnostics
based on EM field technologies, especially those coming out
from the theory and technique of microwaves, antennas and
EM wave propagation.