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Optimization of reflection coefficient of large log-periodic array by computing only a small part of it

Jian Yang (Institutionen för signaler och system, Antenner) ; Per-Simon Kildal (Institutionen för signaler och system, Antenner)
IEEE Transactions on Antennas and Propagation (0018-926X). Vol. 59 (2011), 6, p. 1790-1797.
[Artikel, refereegranskad vetenskaplig]

A new method is described in the paper to predict the reflection coefficient of a complete large log-periodic array (with large number of elements) from the computed performance of a small part of the array. The small part is referred to as the partial array. The method involves computing the embedded S-parameters between all the elements of this partial array and then using these S-parameters to predict the performance of the full array. As an example, the method has been applied to optimize the Eleven antenna for 2-13 GHz. The result of the optimization is that the reflection coefficient is improved significantly to be below -10 dB over the whole frequency band. The results have been verified by measurements.

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Denna post skapades 2011-06-13. Senast ändrad 2013-08-23.
CPL Pubid: 141655


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Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)


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