A Technique for Analyzing UWB Antennas Using the TLM Method

In this paper, a technique for antenna analysis with the help of Transmission Line Matrix (TLM) Method is presented. In order to simulate a free space environment the TLM method requires the use of an absorbing boundary condition. The latter is realized by the EPML (extended perfectly matched layer). For the applicability of the technique proposed, a bow-tie and Vivaldi antenna are analyzed. Subsequently, numerical, as well as experimental results are introduced and discussed. These results obtained demonstrate the capability of this simulation technique for practical broad-band antenna design.