Compact and Mutual Coupling Reduced ResonanceBased Reflector Antenna for Electromagnetic Imaging Applications

Abstract

In this paper MIMO antenna based on RBR reflector with Dipole as elements is designed. The
single Dipole antenna considered for the analysis operates at 1.7GHz frequency. It is placed on dielectric
substrate FR4 (epoxy) to form the antenna. Many of the researchers have a great interest on the thorax area
as disease related to the heart, lungs and liver of human body. By using several unidirectional and WB
antennas it is possible to track information about targets which are present inside the thorax and around its
perimeter. The main challenge is designing an antenna which operates at lower frequency 1GHz, compact in
size, mutual coupling free. performance will be enhanced by reducing its mutual coupling and also
achieving good isolation between the radiating elements with the help of RBR structure placed in MIMO &
the comparative analysis of the MIMO antenna with and without RBR structure, presented with the help of
return loss, radiation pattern, isolation S21, current distribution and other antenna parameters.