Hyun, S. -Y. Kim, S. -Y. Kim, Y. -S. 2024-01-20T21:34:34Z 2024-01-20T21:34:34Z 2021-09-03 2009-04 1751-8725 https://pubs.kist.re.kr/handle/201004/132621 In the finite-difference time-domain (FDTD) method, a simple and realistic feed model for coaxial probe driven antennas is proposed here. The feed zone of the antenna may be considered as an equivalent source in view of the antenna theory and a load port in view of the transmission line theory. The proposed feed model is constructed by combining the infinitesimal-gap source condition of the antenna and the equivalent load condition of the feed line. It leads to perform no additional FDTD cell modelling of the line. The transient reflected voltage and the input impedance of cylindrical monopole antennas fed by coaxial lines are calculated numerically and then compared with the accurate measurement and a full fine-grid. The FDTD results of the proposed model have a good agreement with the measured data and the fine-grid results. English INST ENGINEERING TECHNOLOGY-IET FDTD MODEL CAVITY Finite-difference time-domain model for the feeding gap of coaxial probe driven antennas Article 10.1049/iet-map.2008.0082 1 IET MICROWAVES ANTENNAS & PROPAGATION, v.3, no.3, pp.501 - 506 IET MICROWAVES ANTENNAS & PROPAGATION 3 3 501 506 scie scopus 000265177600017 2-s2.0-63149171281 Engineering, Electrical & Electronic Telecommunications Engineering Telecommunications Article FDTD MODEL CAVITY FDTD antenna feed