An Array of Tilted Dipoles Loaded with Artificial Dielectrics with an Asymmetric Pattern
IEEE International Symposium on Phased Array Systems and Technology(2019)
摘要
We present the design of an array of tilted dipoles loaded with artificial dielectrics, to achieve asymmetric radiation patterns. First, a simplified array element consisting of skewed stacked dipoles in the presence of a backing reflector is studied, by means of a dedicated spectral periodic method of moments (MoM). The analysis of the stacked dipoles provides guidelines to design arrays with certain radiation characteristics, by varying the tilt angle and the inter-element spacing. Based on the findings of numerical analysis, we then propose a tilted dipole element design with artificial dielectric loading to implement the pattern asymmetry. The design includes the feeding structure and the balun transition to a 50-Ohm coaxial line.
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关键词
Antenna array,low-profile,method of moments,pattern shaping
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