Wideband multilayer WAIM design and optimization

Abstract
The use of metamaterials to obtain a wideband wide angle impedance matching (WAIM) for waveguide-fed planar phased array is investigated. The constitutive parameters as well the thickness of the layers placed over the radiating elements are optimized by means of a particle swarm optimizer (PSO). Selected results show the effectiveness of the approach in improving the performance of the whole radiating system.

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