Fast computation and extrapolation of the effects of array truncation in broadband antenna arrays

Craeye, Christophe
(2003) 2003 IEEE International Symposium on Antennas and Propagation: URSI North American Radio Science Meeting — Location: Columbus, OH, USA (22.June.2003)

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In broadband phased arrays, the elements near the edges have a widely deviating behavior. This is analyzed here with the help of a finite-by-infinite array approach. The solution of the equations is dramatically accelerated by decomposing the array into two approximate semi-infinite arrays (APSIAs), the solution of which is obtained recursively for arrays of increasing size. For very large arrays, the solution is extrapolated further inside the array by using a model for the waves scattered by the edges of the array. Simulations results are shown for arrays of tapered-slot antennas in receiving conditions.
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Craeye, C. (2003). Fast computation and extrapolation of the effects of array truncation in broadband antenna arrays. IEEE Antennas and Propagation Society International Symposium. Digest.Held in conjunction with: USNC/CNC/URSI North American Radio Sci.Meeting (Cat. No.03CH37450), Vol. 4, p. 19-22. https://hdl.handle.net/2078.5/220669