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Antenna radiation characteristics with partially coherent illumination

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1 Author(s)
Mitchell, R. ; Aerospace Corp., El Sugundo, CA, USA

The radiation characteristics of a partially coherent illuminated antenna are found for both a circular aperture and a linear antenna. The antenna illumination function is assumed to be Gaussian, and the phase structure function in the plane of the antenna is assumed to be of the formcr^{nu}, withnu = 1, 5/3, and 2. The beam broadening and reduction in gain in decibels are found to be of the formKb^{alpha}, whereKandalphaare functions of the antenna illumination and the "law" of the phase structure function, andbis a function of the "level" of the phase structure function.

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Antennas and Propagation, IEEE Transactions on  (Volume:14 ,  Issue: 3 )