Transparent Metasurface to Improve Transmission Through Glass for Mm-Wave Arrays in Phones

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Abstract

This paper proposes an wideband (20 GHz) transparent metasurface for mobile phone glass covers. This metasurface enhances 5 G/6 G mm-wave transmission and mitigates the negative impact of glass on the mm-wave antenna module located beneath the glass rear cover. To achieve high transparency, a 600 nm-thick aluminum hexagonal -shaped grid is employed. To achieve wide bandpass behavior and improve angular robustness without increasing thickness or adding additional substrates, a second-order filter has been designed. Simulations and measurements have been performed to verify the model. The 3D radiation patterns confirm that the metasurface can reduce the effects of glass on top of the antenna and provide a single beam broadside radiation pattern.
Original languageEnglish
Article number10820525
JournalIEEE Antennas and Wireless Propagation Letters
Pages (from-to)1-5
Number of pages5
ISSN1548-5757
DOIs
Publication statusAccepted/In press - 3 Jan 2025

Keywords

  • Aluminum
  • Antenna measurements
  • Antenna radiation patterns
  • Antennas
  • Band-pass filters
  • Glass
  • Metals
  • Metasurfaces
  • Optical surface waves
  • Patch antennas

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