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

Riccardo Ozzola*, Andrea Neto, Ulrik Imberg, Daniele Cavallo

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review


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.

Original languageEnglish
Pages (from-to)992-997
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Issue number1
Publication statusPublished - 2024

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


  • 5G antenna arrays
  • artificial dielectrics
  • connected arrays
  • mobile communications
  • phased arrays
  • wideband arrays


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