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Multiple-frequency computer analysis of the log-periodic dipole antenna

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1 Author(s)
D. Sinnott ; Australian Defence Scientific Service, Weapons Research Establishment, Salisbury, SA, Australia

Matrix methods for analysis of dipole antenna arrays have been applied to general computer programs but often require large amounts of computation time for multiple-frequency analysis of electrically long arrays, since most of the computations must be repeated for each frequency. It is shown how the special geometry of a leg-periodic dipole antenna may be exploited within the general framework of matrix methods to permit multiple-frequency analysis without the need to repeat all computations for each frequency. The computation of antenna currents at one frequency is made use of in solving for currents at a different frequency; the time consuming matrix inversion step is required only once.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:22 ,  Issue: 4 )