Near-Field Focused Subarrays in a Multi-Panel Configuration

Hsi-Tseng Chou; Marcos R. Pino; Paolo Nepa; Chang-Yi Liu

doi:10.1109/ACCESS.2019.2944054

IEEE Access (Jan 2019)

Near-Field Focused Subarrays in a Multi-Panel Configuration

Hsi-Tseng Chou,
Marcos R. Pino,
Paolo Nepa,
Chang-Yi Liu

Affiliations

Hsi-Tseng Chou: ORCiD; Graduate Institute of Communication Engineering, National Taiwan University, Taipei, Taiwan
Marcos R. Pino: ORCiD; Department of Electrical Engineering, University of Oviedo at Gijón, Gijón, Spain
Paolo Nepa: Department of Information Engineering, University of Pisa, Pisa, Italy
Chang-Yi Liu: Department of Communication Engineering, Yuan Ze University, Taoyuan, Taiwan

DOI: https://doi.org/10.1109/ACCESS.2019.2944054
Journal volume & issue: Vol. 7
pp. 143097 – 143108

Abstract

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This paper investigates the focusing features of a multi-panel near-field focused (NFF) antenna. Differently from conventional NFF planar arrays, the proposed configuration is made of a set of NFF subarrays that are concentrically arranged over a cylindrical boundary. A systematic numerical analysis is performed to show how to control the shape of the -3dB focal spot through the main geometrical and electrical parameters of the proposed antenna layout, such as the number of subarrays, the focal spot location of each subarray and the radius of the cylindrical boundary the subarrays are arranged on. When compared with conventional planar NFF arrays, the additional mechanical complexity is partially balanced by a simpler feeding network design and a more symmetric focal spot. Experimental results are shown for a prototype operating at the 2.4 GHz ISM band.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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