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Limitation of the axial gain of large antennas under partial coherent illumination

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1 Author(s)
Yih Shiau ; Illinois Inst. of Tech., Chicago, IL, USA

Based on the theory of partial coherence, a limit for the gain of a large antenna imposed by the randomness of fluctuating fields is obtained. There exists a region of gain saturation as the antenna reaches a dimension of 40 times the coherence length of fluctuating fields.

Published in:

Proceedings of the IEEE  (Volume:61 ,  Issue: 8 )