Application of Aperiodic Tiles in Limited Field-of-View Phased Array
This article presents a tiling approach for antenna arrays based on aperiodic tiles(also known as"Ein-stein"tiles).Due to the inherent asymmetry of the aperiodic tile structure,the grating lobe level of the large spacing sparse array can be effectively suppressed.A significant advantage of the antenna array layout is its ability to realize a fully tiled plane with only one type of aperiodic tiles,achieving seamless tiling without overlaps or gaps,and the dense layout can be realized without relying on complex optimization algorithms,which can simplify the design methodology and enhance the overall performance.In contrast,the layout of traditional periodic tiles usually requires complex optimi-zation algorithms,which makes the method proposed in this paper have obvious advantages in reducing optimization costs.In addition,excellent grating lobe suppression effect can be obtained by optimizing the position of a few antenna elements in the tile,and further enhancing the performance of the antenna array.For scanning radar with limited field of view,the array layout method proposed in this paper is highly attractive.The layout scheme of the antenna array and the grating lobe suppression are described in detail,and the feasibility of the method is verified by simulation calculations.
aperiodic tilegrating lobe suppressionlimited field of viewphased array antenna
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维普
