A Radially Periodic TE-Polarized Leaky-Wave Bessel-Beam Launcher at Submillimeter Waves
The generation of a limited-diffractive, focusing, and self-healing field profile is crucial for the implementation of next-generation, near-field, wireless links. For this reason, this work presents a wideband, leaky-wave Bessel-beam launcher realized through a planar, low-profile, cost-effective grounded dielectric slab with a radially periodic metal strip grating printed on top. The proposed device, excited by a circular waveguide, can generate a transverse-electric-polarized Bessel beam at 300 GHz, reaching a nondiffractive range of 25 mm with an aperture radius of just 12.75 mm. Theoretical results, obtained through an effective and elegant leaky-wave approach, are in a remarkable agreement with full-wave simulations, corroborating the launcher design.
Authors
- Edoardo Negri (ORCID: https://orcid.org/0000-0001-8525-4306)
- Alessandro Galli (ORCID: https://orcid.org/0000-0002-5827-160X)
- Walter Fuscaldo (ORCID: https://orcid.org/0000-0002-0773-6286)
- Paolo Burghignoli (ORCID: https://orcid.org/0000-0001-5896-4732)
- David González-Oveiero
Institutions
- Centre National de la Recherche Scientifique (FR)
- Institut d'Électronique et des Technologies du numéRique (FR)
- Institute for Microelectronics and Microsystems (IT)
- Université de Rennes (FR)
- Sapienza University of Rome (IT)
Publication Details
- Published
- 2025-03-30
- DOI
- https://doi.org/10.23919/eucap63536.2025.10999368
- Primary Topic
- Radio Wave Propagation Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00