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Realizability and Other Features of the Ideal Contour Element Pattern in Planar Phased-Array Antennas


S.P. Skobelev

An infinite planar array of controlled elements in the form of overlapped subarrays excited through a multiport circuit is considered. It is analytically shown that the contour element (subarray) pattern with an ideal contour shape corresponding to the absence of backward mutual coupling and, as a consequence, to the 100% element efficiency can be exactly formed at a definite amplitude distribution over the densely arranged small ideal subarray radiators in spite of the fact that each such a radiator in the subarray has low efficiency caused by the presence of backward mutual coupling. The orthogonality properties of the ideal contour element patterns and similar properties of the corresponding amplitude distributions are also proved.

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