Nonplanar microstrip arrays |
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Authors: | Herscovici N. |
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Affiliation: | Teg Inc., Framingham, MA; |
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Abstract: | Pattern synthesis using planar arrays was done extensively in the past, mainly in the context of radar antennas where a cosec2 beam is required in the elevation plane. The synthesis leads to a set of coefficients for the array elements which may be difficult to realize and which, if realizable, may lead to a very narrow-band performance. In this paper, a new type of array is proposed. The shaped-beam nonplanar array is an array of microstrip elements, where the phasing is not generated through the feeding network, but by shaping the substrate. Microstrip arrays lend themselves well to a configuration similar to the one proposed, and as it is shown, the final thickness of the array does not exceed a few substrate thicknesses |
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