Synthesis and design of periodic mm- to nano-scale gratings and their application in antenna systems
Lorente Crespo, Maria
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This thesis investigates the application of 2D periodic arrays of passive elements for future millimetre and nanometre waves antenna applications, and aims to provide guidelines for researchers dealing with the electromagnetic response of this type of structures in next generation communication systems. Novel conﬁgurations are here reported driven by the power requirements at each frequency band, as well as adapted analysis methods for its synthesis and analysis. All-dielectric structures based on form-birefringence and gradient index optics are considered in the ﬁrst part of this dissertation, for their application to highly di rective circularly polarised antennas for transmission and reception of high power millimetre waves. Higher frequency nanometre waves are the focus of the second part, where the utilisation of 2D arrays of metallic nanoparticles as building blocks for optical leaky wave and magnetic antenna systems is thoroughly studied.