An Equivalent Feed Model for the FDTD Analysis of Antennas Driven Through a Ground Plane by Coaxial Lines
- Authors
- Hyun, Seung-Yeup; Kim, Se-Yun; Kim, Young-Sik
- Issue Date
- 1월-2009
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Antenna feed; equivalent feed model; finite-difference time-domain (FDTD); magnetic-frill current
- Citation
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.57, no.1, pp.161 - 167
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
- Volume
- 57
- Number
- 1
- Start Page
- 161
- End Page
- 167
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120792
- DOI
- 10.1109/TAP.2008.2009650
- ISSN
- 0018-926X
- Abstract
- For the finite-difference time-domain (FDTD) analysis of antennas excited by coaxial lines, an equivalent model of the antenna feed is presented here. Under the quasi-static approximation, the coaxial aperture is simply represented as the equivalent magnetic-frill current and the equivalent load circuit including the effects of the coaxial line. It leads us to a simple modification of the standard FDTD update equation at the aperture without any additional cell modeling or the line. The validity of the proposed model is confirmed by comparing of the FDTD results and the measured data.
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