Antenna Array Inter-Element Coupling impact on Linearization of Active Phased Array

Jalili, Feridoon; Serup, Daniel E.; Fránek, Ondřej; Shen, Ming; Pedersen, Gert Frølund

doi:10.1109/isncc52172.2021.9615911

Cited by 6 publications

(1 citation statement)

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“…This has the effect of both decreasing the effective aperture of the array and increasing the element coupling. Higher coupling increases the sensitivity of the element impedance to the steering angle, thus degrading power amplifier output power, linearity, and efficiency [61], [62]. Coupling can also alter the active element pattern [63].…”

Section: Categories Of Shape-changing Arraysmentioning

confidence: 99%

Frontiers in Flexible and Shape-Changing Arrays

et al. 2023

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Shape-changing arrays are an emerging frontier of phased array development. These arrays fold, conform, and flex dynamically as they operate. In this work we describe the technology developments which have enabled their creation and use. We present the theoretical implications of aperture change for arrays and methods for taking advantage of these aperture changes. We discuss existing shape-changing array components and systems. Operation techniques for shape-changing arrays, including new results demonstrating a method for determining the shape of an asymmetrically bent flexible array using only the mutual coupling between elements, are shown. Finally, we present a comparison of shape-changing systems across a variety of physical and electrical metrics.INDEX TERMS MTT 70th Anniversary Special Issue, shape-changing array, flexible phased array, integrated circuit based array, deployable, origami, flexible electronics, stretchable electronics.

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Section: Categories Of Shape-changing Arraysmentioning

confidence: 99%