Performance analysis of smart antenna bandwidth at terahertz frequency range

The rapid advancement in wireless communications systems and the narrow bandwidth accessibility is a challenging work in the communication field. One possible suggestion for the bandwidth restriction is to use smart antenna systems. The preferred bandwidth is one of the decisive considerations used to adopt upon an antenna. For example, various antenna types have very narrow bandwidths and this is unsuitable for wideband operation. A theoretical and practical analysis has been analyzed on the effect of smart antenna dimension with figure of merit such as bandwidth in this research work. Smart antenna has been analyzed as effective counter methods to improve channel bandwidth and capacity in addition to reduce the channel interference. The analyzed process proffers the wide bandwidth, less electromagnetic interruption, phase control free of frequency and small propagation loss. The modeling and simulation of smart antenna with improved bandwidth between the lowest frequency F
L
= 0.5 THz and the highest frequency F
H
= 1.0 THz have been computed using Agilent's ADS 2014. The antenna's far field elements of the total electric field at θ = 30° and φ = 30° has been computed from the simulation results of the current electromagnetic (EM) field setup. The radiation patterns and antenna parameters are available in the finite element method (FEM) of the software has been used. Similarly, the power variation as a function of the angle of arrival is observed in the antenna's far field. The advantages are examined for fading radiation, co-channel interference and the radiated power as 500 watts between 0.70 THz and 0.75 THz. The P
rad
is calculated using Equation (1) and the result is shown in Fig. 1. The Fig. 2 shows the fitted points and discrete frequency points of magnitude (dB), phase (deg) versus the frequency. Equation