Experimental UWB ON-Body Channel Modelling: Effect on Antenna Transmission Characteristics

This paper briefly sketches the effect of antenna radiation characteristics for UWB (ultra-wideband) On-body channel modeling demonstrated through various set of experiments. An UWB monopole antenna (LxW = 50mm x 60mm) having a circular monopole diameter of 25mm (#Ant 1) , a Vivaldi antenna (L x W = 35mm x 45 mm) ( #Ant 2), and another UWB planar monopole of dimensions LxW = 22mm x 40mm (#Ant 3), all working over the 3-10 GHz frequency band are used as Antennas Under Test (AUTs) in two different case studies to set up an On-body Channel model for experimental verification: (i) #Ant 1-#Ant 3, (ii) #Ant 2#Ant 3. Each of the AUTs are placed on the inner palms of a female volunteer. The S21 characteristics were analyzed in both near field and far field of #Ant 1 and #Ant 2.