IEEE Access (Jan 2021)

A Review of Reconfigurable Leaky-Wave Antennas

  • Nima Javanbakht,
  • Barry Syrett,
  • Rony E. Amaya,
  • Jafar Shaker

DOI
https://doi.org/10.1109/ACCESS.2021.3093775
Journal volume & issue
Vol. 9
pp. 94224 – 94238

Abstract

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A comprehensive survey of the reconfigurable leaky-wave antennas (LWAs) is made in this paper. Beam-steering and unique radiating features of LWA are highlighted particularly. Therefore, the radiation mechanism of different types of LWA, including uniform, quasi-uniform, periodic, and metamaterial LWAs are discussed in detail. The guiding structures for realizing LWAs, namely microstrip, waveguide, substrate integrated waveguide (SIW), and half-mode SIW (HMSIW) are investigated as well. Basic concepts of electronic beam-scanning LWAs are also introduced, and several state-of-the-art reconfigurable LWAs are studied thoroughly. The investigated reconfigurable LWAs are suitable for beam-scanning applications due to their compactness, ease of implementation, reasonably high gain, and relatively wide beam-scanning range, as will be demonstrated through this comprehensive review.

Keywords