TY - JOUR
T1 - Modeling and simulation of broad-band antennas using the time-domain finite element method
AU - Lou, Zheng
AU - Jin, Jian Ming
N1 - Funding Information:
Manuscript received March 29, 2005; revised April 18, 2005. This work was supported by the Air Force Office of Scientific Research via the MURI Program under Contract FA9550-04-1-0326. The authors are with the Center for Computational Electromagnetics, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801-2991 USA (e-mail: j-jin1@uiuc.edu). Digital Object Identifier 10.1109/TAP.2005.859905
PY - 2005/12
Y1 - 2005/12
N2 - This paper presents a time-domain finite element method (TDFEM) for the modeling and simulation of complex broad-band antennas. Two critical components, namely the modeling of antenna feeds and the truncation of infinite free space, are discussed in detail. An accurate waveguide port boundary condition is employed to model the commonly used coaxial feeds, which is also applicable to other waveguide feeding structures. An improvement to the simplified probe feed model is also presented. The formulation and implementation of perfectly matched layers are briefly described for the truncation of the TDFEM computational domain. Numerical examples are presented to demonstrate the modeling and simulation of typical broad-band antennas, which include a logarithmic spiral antenna, a Vivaldi antenna, and a Vlasov antenna.
AB - This paper presents a time-domain finite element method (TDFEM) for the modeling and simulation of complex broad-band antennas. Two critical components, namely the modeling of antenna feeds and the truncation of infinite free space, are discussed in detail. An accurate waveguide port boundary condition is employed to model the commonly used coaxial feeds, which is also applicable to other waveguide feeding structures. An improvement to the simplified probe feed model is also presented. The formulation and implementation of perfectly matched layers are briefly described for the truncation of the TDFEM computational domain. Numerical examples are presented to demonstrate the modeling and simulation of typical broad-band antennas, which include a logarithmic spiral antenna, a Vivaldi antenna, and a Vlasov antenna.
KW - Broad-band antenna simulation
KW - Feed modeling
KW - Perfectly matched layers
KW - Time-domain finite-element method (TDFEM)
KW - Waveguide port boundary condition
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U2 - 10.1109/TAP.2005.859905
DO - 10.1109/TAP.2005.859905
M3 - Article
AN - SCOPUS:29444439034
VL - 53
SP - 4099
EP - 4110
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 12
ER -