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The characteristics and design of the conical log-spiral antenna

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1 Author(s)
Dyson, J. ; University of Illinois, Urbana, IL, USA

The balanced conical logarithmic-spiral antenna is considered as a slow-wave locally periodic structure with a slowly varying period. A study of the near fields and their relationship to the far fields has led to the identification of the active region or effective radiating aperture on the antenna and to a clearer understanding of its operating characteristics. Information of the near- and far-field characteristics and on the input impedance for a wide range of parameters is presented in a form suitable for use in the design of practical antennas.

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Antennas and Propagation, IEEE Transactions on  (Volume:13 ,  Issue: 4 )