Directivity optimization for Yagi-Uda arrays of shaped dipoles

Directivity optimization for Yagi-Uda arrays of shaped dipoles

A method is presented for the maximization of the directivity of Yagi-Uda arrays whose elements are not straight conductors. The optimum shapes as well as the positions of the array elements are determined, both of which depend on the radius of the conductors. The moment method is used in the optimi...

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Veröffentlicht in:I.R.E. transactions on antennas and propagation 1983-05, Vol.31 (3), p.522-525
Hauptverfasser: Chang-Hong Liang, Cheng, D.
Format: Artikel
Sprache:eng
Schlagworte:
Antenna arrays
Conductors
Current distribution
Frequency
Geometry
Optimization methods
Phased arrays
Shape
UHF antennas
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Beschreibung
Zusammenfassung:A method is presented for the maximization of the directivity of Yagi-Uda arrays whose elements are not straight conductors. The optimum shapes as well as the positions of the array elements are determined, both of which depend on the radius of the conductors. The moment method is used in the optimization process. An example shows that an optimized Yagi-Uda array of three 1.5 \lambda elements can achieve a maximum directivity of 11.8 dB.
ISSN:0018-926X
0096-1973
1558-2221
DOI:10.1109/TAP.1983.1143085