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Applying variational principles in FDTD antenna input impedance simulations
Author(s) -
Pekonen Olli P. M.,
Nikoskinen Keijo I.,
Goodwin Stephen
Publication year - 1998
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19981220)19:6<422::aid-mop12>3.0.co;2-z
Subject(s) - finite difference time domain method , microwave , antenna (radio) , electrical impedance , dipole antenna , variational method , electronic engineering , simple (philosophy) , dipole , voltage , physics , acoustics , computer science , engineering , mathematics , mathematical analysis , electrical engineering , optics , telecommunications , philosophy , epistemology , quantum mechanics
The use of variational principles with the FDTD scheme is introduced by simulating simple dipole antenna structures. Input impedances of the antennas are computed with the variational method and with direct definition V in &sol I in . The variational method clearly shows a better agreement with the reference results than the commonly used, voltage–current ratio‐based derivation. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 422–427, 1998.