Connected Slot Array with Interchangeable ADL Radome for sub-8 GHz 5G Applications

Journal article (2024)

Authors

R. Ozzola Tera-Hertz Sensing -

A. Neto Tera-Hertz Sensing -

Ulrik Imberg Huawei Technologies Sweden AB

D. Cavallo Tera-Hertz Sensing -

Research Group

Tera-Hertz Sensing () (TU Delft)

DOI: https://doi.org/10.1109/TAP.2023.3333541

Phased arrays Artificial dielectrics Connected arrays Wideband arrays 5G antenna arrays Mobile communications

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Published Date

2024

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

We present a dual-polarized connected array of slots with an artificial dielectric layer (ADL) radome for mobile communication applications operating in the sub-6 GHz and the upper 6 GHz bands of 5G. The radiating slots are combined with two interchangeable ADL radomes with different thicknesses, targeting the bands 6-8 and 2-8 GHz, respectively. This highlights the main property of the ADL radome, which realizes an impedance transformer whose bandwidth is proportional to the height of the structure. Moreover, the ADL anisotropy allows for wide scanning, up to 60° in the main planes for both radomes, without scan blindness. An $8\,\, \times \,\, 8$ prototype array has been manufactured and tested with the two ADL radomes. The measured results of the active voltage standing wave ratio (VSWR) and the radiation patterns are reported to validate the design.

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