2-D Beam-Steerable Generalized Mikaelian Lens with Unique Flat-Shape Characteristic

Wenyi Shao, Qiang Chen

Research output: Contribution to journalArticlepeer-review

Abstract

A novel two-dimensional (2-D) beam-steerable generalized Mikaelian lens is presented in this letter. The main difference of proposed lens with respect to conventional Luneburg, Maxwell fish-eye and Eaton lens is its unique flat-shape characteristic, which provides great advantages in designing the low-profile flat-shape lens antenna, avoiding using extremely complex conformal mapping methods. The all-dielectric low-cost lens prototype presenting desired graded permittivity profile is fabricated by 3-D printing. The measurement results at 10 GHz show 2-D beam-steering capabilities from -20° to 20° in both the E-and H-plane with around 18.9 dBi of realized gain with less than ∼1.2 dB variation and low-side lobe can be achieved, revealing great potentials for developing the low-profile and cost-effective lens antenna for microwave applications.

Original languageEnglish
Pages (from-to)2033-2037
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Volume20
Issue number10
DOIs
Publication statusPublished - 2021 Oct 1

Keywords

  • 3-D printing
  • beam steering
  • gradient-index
  • lens antenna
  • Mikaelian lens

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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