Two-Dimensional Beam Steering Using a Stacked Modulated Geodesic Luneburg Lens Array Antenna for 5G and Beyond

  1. Castillo-Tapia, Pilar 2
  2. Zetterstrom, Oskar 2
  3. Algaba-Brazalez, Astrid 1
  4. Manholm, Lars 1
  5. Johansson, Martin 1
  6. Fonseca, Nelson J. G. 3
  7. Quevedo-Teruel, Oscar 2
  1. 1 Ericsson Research, Ericsson AB, Gothenburg, Sweden
  2. 2 Division of Electromagnetic Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
  3. 3 Antenna and Sub-Millimetre Waves Section, European Space Agency, Noordwijk, The Netherlands
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Revista:
IEEE transactions on antennas and propagation

ISSN: 0018-926X,  1558-2221

Ano de publicación: 2023

Volume: 71

Número: 1

Páxinas: 487-496

Tipo: Artigo

DOI: 10.1109/TAP.2022.3217175 GOOGLE SCHOLAR

Outras publicacións en: IEEE transactions on antennas and propagation

Resumo

Antennas for future communication systems are required to be highly directive and steerable to compensate for the high path loss in the millimeter-wave band. In this work, we propose a linear array of modulated geodesic Luneburg lens (the so-called water drop lens) antennas operating at 56–62 GHz. The lens array antenna features 2-D beam scanning with low structural complexity. The lenses are fully metallic and implemented in parallel plate waveguides (PPWs), meaning that they are highly efficient. Each lens is fed with 13 rectangular waveguides surrounded by glide-symmetric holes to suppress leakage. The lenses provide 110∘ beam coverage in the H-plane with scan losses below 1 dB. In order to scan in the E-plane, we use a feeding network based on a 1:4 power divider and three phase shifters. In this configuration, the array can scan 60∘ in the E-plane, albeit with higher scanning losses than in the H-plane. The lens array is manufactured and a good agreement between simulated and experimental results is obtained.

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Información de financiamento

Financiadores

  • Strategic innovation program Smarter Electronics System - a joint venture of Vinnova, Formas and the Swedish Energy Agency
    • High-Int (2019-02103)
  • European Space Agency
    • Technology Transfer contract no. 4000130375/20/N
  • Vetenskapsr?det
    • VR Project 2019-03933

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