A Microstrip Antenna Model for Clinical Monitoring Applications

Abstract

The use of microstrip antenna in microwave
imaging for clinical assessment assistance has grown to a great
extent. In this paper, an inset feed defected ground structure
rectangular patch antenna with Rogers RT/duroid 5880 as the
substrate material is designed in the frequency range of 4.80 GHz
to 5.80 GHz for clinical diagnosis assistance. A four layered
human head phantom model is used for evaluation in Ansys
HFSS electromagnetic simulation. The suggested antenna is
simulated over the head phantom model in three different
positions i.e., over the head phantom model free of tumor, over
the head phantom model with a superficial tumor region of 6mm
radius and over the head phantom model with deep-seated
tumor. The quantitative assessment of the proposed technique is
conducted using different antenna parameters, such as: radiation
efficiency, reflection factor, co-polarization, cross-polarization,
surface current in comparison to the cutting-edge techniques.
Graphical representation of the parameters is also presented in
order to conclude the presence of tumor inside the brain.