Microwave Tomography has many biomedical applications like brain imaging, temperature sensing in different biological tissues and breast cancer detection.In a microwave tomography system, a number of radiators are used to transmit microwave signal into the object under test and the scattered fields are recorded. The collected data is used to quantitatively reconstruct the dielectric profiles of the object under test through inverse scattering mechanism.It has been shown that by using wide band data, highly stable and high resolution constructions can be obtained that is why Ultra wideband Antennas are required in microwave tomography systems. In this book different microstrip patch antennas have been analysed for micowave tomography applications.