Abstract
The most recent advances on the synthesis of wide-angle impedance matching (WAIM) devices for next-generation phased arrays are discussed. Towards this end, the WAIM design problem is formulated within the Material-by-Design (MbD) framework with the objective of minimizing the antenna input reflections caused by mutual coupling (MC) effects arising at the antenna aperture when steering the main beam in a wide angular region. Accordingly, the degrees-of-freedom (DoFs) are represented by the constituent materials of the synthesized structure and/or the micro-scale geometrical descriptors of the considered unit cells. Selected illustrative results will be shown in order to assess the effectiveness and the potentialities of leading-edge MbD solutions for the design of reliable and easy-to-implement WAIMs.
Highlights
Active electronically-scanned arrays (AESAs) represent nowadays a key-technology in many applicative domains ranging from radar to space communications [1]
The wide-angle impedance matching (WAIM) design problem is formulated within the Material-by-Design (MbD) framework with the objective of minimizing the antenna input reflections caused by mutual coupling (MC) effects arising at the antenna aperture when steering the main beam in a wide angular region
The scanning capabilities of such architectures are limited by the unavoidable mutual coupling (MC) effects arising between adjacent elements, causing non-negligible deviations of the reflection coefficient at the air-aperture interface when directing the main beam far from the broadside [3]-[8]
Summary
To cite this article: M Salucci and G Gottardi 2018 J. View the article online for updates and enhancements. - Experimental study of multi-scale heat transfer characteristics at pool boiling V Serdyukov and A Surtaev. - Multi-scale model of the dynamic fracture of molten and solid metals A E Mayer, P N Mayer, V S Krasnikov et al. This content was downloaded from IP address 193.205.207.35 on 19/03/2018 at 18:00.
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