Design of a Dual-Mode Operation 2-D Periodic Planar Leaky-Wave Antenna

D. Comite, V. Gomez-Guillamon Buendia, W. Fuscaldo, Z. Shafiq, S. K. Podilchak, P. Burghignoli, P. Baccarelli, A. Galli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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In this contribution, we describe the design and the radiation features of a dual-mode operation low-profile, low-cost, wideband antenna. The structure is made by an annular, 2-D radially periodic, leaky-wave antenna enabling the generation of both high-gain beams in the far-field and of nondiffracting waves within the near-field radiative region. This is obtained through the generation of a fast backward spatial harmonic supported by a metal-strip grating placed on a grounded dielectric slab. The radiation can be then described by means of a cylindrical leaky-wave dominating the aperture field of the antenna, whose dispersive behavior is properly taken into account. The high-gain radiation features and the focusing capabilities of the device are experimentally investigated and described. Thanks to the dual-mode capability, the proposed design represents an attractive, simple, and innovative solution for next-generation wireless power transfer devices, for tracking or automotive anti-collision systems as well as for advanced microwave imaging.

Original languageEnglish
Title of host publication2019 13th European Conference on Antennas and Propagation (EuCAP)
ISBN (Electronic)9788890701887
Publication statusPublished - 20 Jun 2019
Event13th European Conference on Antennas and Propagation 2019 - Krakow, Poland
Duration: 31 Mar 20195 Apr 2019


Conference13th European Conference on Antennas and Propagation 2019
Abbreviated titleEuCAP 2019


  • Dual-mode antennas
  • Leaky waves
  • Microwave imaging
  • Near field
  • Wireless power transfer

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation


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