V. I. Eremin - Leading Engineer, Federal Research and Development Center JSC - POLYOT Research and Production Company? E-mail: vieremin@mail.ru

This paper shows that the reciprocity principle for antenna-s element of electrically short active receiving decametric antenna does not imply equality of directional patterns in reception and transmission modes. Directional patterns for both reception and transmission modes are obtained by numerical simulation in HFSS for active receiving antenna installed on board an aircraft. Significant disagreement between directional patterns obtained in different modes is presented for particular antenna-s placement, frequency and radiation polarization.

 

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