A Novel Lens Antenna Design Based on a Bed of Nails Metasurface for New Generation Mobile Devices

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Abstract

This paper presents a lens antenna concept with multibeam performance in the mm-wave band for the next generation mobile devices. The lens consists of metallic vias, etched in the substrate with different height, to obtain different permittivity. The goal is to correct the phase distribution of the incoming electromagnetic wave, to radiate towards the desired direction with high gain. The -10 dB impedance bandwidth of 4 GHz is achieved around the central frequency of 38 GHz. Three beams pointing different directions allow to cover the angle range of 68° in azimuth with realized gain higher than 5 dBi. Simulations of the lens antenna placed on the top left corner of a mobile phone PCB confirm the performance of the prototype. Moreover, the total scan pattern (TSP) highlights wide coverage of 110° in elevation, where the gain is overall more than 6 dBi, reaching peak values of 9.4 dBi.
Original languageEnglish
Title of host publication2020 14th European Conference on Antennas and Propagation (EuCAP)
Number of pages5
PublisherIEEE
Publication date8 Jul 2020
Article number9135354
ISBN (Print)978-1-7281-3712-4
ISBN (Electronic)978-88-31299-00-8
DOIs
Publication statusPublished - 8 Jul 2020
EventThe 14th European Conference on Antennas and Propagation - Copenaghen, Denmark
Duration: 15 Mar 202020 Mar 2020

Conference

ConferenceThe 14th European Conference on Antennas and Propagation
CountryDenmark
CityCopenaghen
Period15/03/202020/03/2020

Keywords

  • 38GHz
  • Mobile terminal antenna
  • lens antenna
  • metasurface
  • multibeam antenna

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