![]() It then computes reflection coefficients, the convergence of basic functions and current distributions, and the far-field radiation behavior. This method is based on the exact Green's function the MoM-based procedure used in ADS calculates the reflection coefficient and the unknown electric currents on the antenna. 5 The antenna was modeled and simulated with the Advanced Design System (ADS) EDA software tools from Agilent Technologies ( using method of moments (MoM) analysis. The Vivaldi antenna designed for the present study targets use at X-band frequencies, nominally from 8 to 12 GHz. Many of the early TSA experiments were conducted with electronic design automation (EDA) software design and analysis tools, such as the High Frequency Structure Simulator (HFSS) from Ansoft ( and CST Microwave Studio from Computer Simulation Technology ( But for all this research, there has been insufficient study of a practical TSA design, a highfrequency single-sided exponential Vivaldi antenna, as will be presented here. In 1986, the simple case of a TSA without a substrate was first analyzed, 4 with more advanced analysis methods to follow. The tapered slot antenna (TSA), which was introduced by Gibson in 1979, 3 is well suited to meeting these requirements. 1 Key requirements in applications such as airborne radar and communications systems include high efficiency, wide bandwidth, light weight, small size, and simplicity. ![]() The basic behavior of an antenna can be described by its wave field strength, polarization, and direction of propagation. ![]() Although there are many types of antennas, they all operate according to the same basic EM principles. This file type includes high resolution graphics and schematics when applicable.Īntennas are essential to highfrequency communications and electronic systems for radiating or receiving electromagnetic (EM) energy. ![]()
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