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Planar quasi-periodic arrays are widely used in many electromagnetic devices, such as reflectarray antennas, metasurfaces, nano particle arrays, and etc‥ They can be modeled as elements with geometrical control parameters located at periodic locations. Modeling quasi-periodic arrays are more challenging compared with periodic arrays. The entire array is required during the modeling process due to...
Reflectarray antennas have been widely used in communications and national defense because of their remarkable advantages such as high gain, low loss, low profile, and etc. In the design of reflectarray antennas, the relation between the reflection phase of every element and its dimensions is usually computed through element simulation with infinite periodic boundary conditions. However, this assumption...
Based on Huygens' principle, the equivalence principle algorithm can decompose a large computational domain into several subdomains and model electromagnetic phenomenon efficiently. This paper analyses the numerical projection error of the equivalence principle operator (EPO), i.e., the error of the scattered equivalent currents on the equivalence surfaces projected from the currents inside the surface...
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