Dual-Band Metal Frame Blockage Reduction for 5G mm-Wave Arrays in Mobile Phones

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Abstract

This paper proposes a solution that allows reducing the obstruction from the mobile phone frame to electromagnetic waves in two bands of the mm-wave spectrum. This response is obtained by etching longitudinal corrugations of two different lengths in the metal frame. The corrugations are inspired on the hard surfaces principle, which supports the propagation of electromagnetic waves on metal. The proposed structure is matched to a 50-Ohm source in the following bands: 25.4-27.7 GHz, 28.7-29.9 GHz, and 36.4-40.3 GHz. The realized gain of the mm-wave array with the corrugated frame is higher than the one of the array in free space in the majority of the operating bandwidth. The proposed solution can increase the gain of the array with a normal frame up to 10 dB.
Original languageEnglish
Title of host publication16th European Conference on Antennas and Propagation, EuCAP 2022
PublisherIEEE
Publication date2022
Article number9769010
ISBN (Print)9781665416047
ISBN (Electronic)9788831299046
DOIs
Publication statusPublished - 2022
Event16th European Conference on Antennas and Propagation, EuCAP 2022 - Madrid, Spain
Duration: 27 Mar 20221 Apr 2022

Conference

Conference16th European Conference on Antennas and Propagation, EuCAP 2022
Country/TerritorySpain
CityMadrid
Period27/03/202201/04/2022
Series2022 16th European Conference on Antennas and Propagation, EuCAP 2022

Bibliographical note

Funding Information:
This work was partially supported by the Innovations-Fonden project of Reconfigurable Arrays for Next Generation Efficiency (RANGE), and by research grant (41389) from VILLUM FONDEN.

Publisher Copyright:
© 2022 European Association for Antennas and Propagation.

Keywords

  • 5G
  • antenna array
  • blockage
  • dual-band
  • frame
  • hard surface
  • mm-wave

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