Quasi-optics-inspired low-profile endfire antenna element
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Basavarajappa, Vedaprabhu; Bedia Expósito, Beatriz; Cabria de Juan, Lorena; Basterrechea Verdeja, JoséFecha
2019-12Derechos
Attribution 4.0 International
Publicado en
EURASIP Journal on Wireless Communications and Networking, 2019, 2019:181
Editorial
SpringerOpen
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Resumen/Abstract
In this paper, the design, operational principle and experimental validation of an endfire antenna element that is inspired by the energy-focusing characteristics of graded-index optical fibre are presented. The antenna operates with a bandwidth of 1.5 GHz centred around 14 GHz. It has a gain of around 5.5 dBi along the band of interest and a good pattern stability over the band. The antenna derives its unique nature from the arrangement of the arc-shaped parasitics, that couple onto the antenna´s driver dipole. An electromagnetic refractive index retrieval mechanism is used to guide the placement of the parasitics to enhance the gain. In addition to the design principle, a parametric study of the main parameters and their influence on the antenna behaviour is presented. The antenna is a potential candidate for use in multi-user massive MIMO antenna arrays for 5G communications where space is premium and in antenna array applications where a low-profile antenna element with a high gain is a necessity.
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