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Wideband Antenna Patterns and Impulse Response of Broadband RF Phased Arrays With RF and Photonic Beamforming

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5 Author(s)
Rotman, R. ; Sch. of Electr. Eng., Tel Aviv Univ. ; Raz, O. ; Barzilay, S. ; Rotman, S.R.
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The general expression for a monochromatic antenna pattern is extended to a two dimensional function with dependence on both space and time. Expressions for the wideband antenna pattern in space and the impulse response in time are developed. The effects of random errors in the spatial domain and errors common to all elements with fluctuations in the frequency domain are analyzed. Examples are given, including RF beamformers and elements in finite arrays, but with an emphasis on a photonic beamformer, which shows improved performance relative to its RF counterparts in both the spatial and time domains

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Antennas and Propagation, IEEE Transactions on  (Volume:55 ,  Issue: 1 )