Electromagnetic analysis of exponentially tapered coplanar stripline antennas used in coherent microwave transient spectroscopy technique

Abstract

This paper deals with an electromagnetic analysis by FDTD method of exponentially tapered coplanar stripline (ETCS) antennas used for the material characterisation by spectroscopy technique. This analysis leads to the time and harmonic evolution of radiated fled at every point in the space. The effect of substrate thickness on radiation properties of ETCS antennas, radiation patterns are presented. The received signal is calculated and compared to the experimental signal.