Abstract
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 language | English |
|---|---|
| Title of host publication | 2019 13th European Conference on Antennas and Propagation (EuCAP) |
| Place of Publication | United States |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| ISBN (Electronic) | 978-88-907018-8-7 |
| Publication status | Published - 20 Jun 2019 |
| Event | 2019 13th European Conference on Antennas and Propagation (EuCAP) - ICE Krakow Congress Centre, Krakow, Poland Duration: 31 Mar 2019 → 5 Apr 2019 Conference number: 13 https://www.eucap2019.org/ |
Conference
| Conference | 2019 13th European Conference on Antennas and Propagation (EuCAP) |
|---|---|
| Abbreviated title | EuCAP 2019 |
| Country/Territory | Poland |
| City | Krakow |
| Period | 31/03/19 → 5/04/19 |
| Internet address |
Keywords
- Dual-mode antennas
- leaky waves
- Microwave imaging
- near field
- wireless power transfer (WPT)
- apertures
- microwave antennas
- Dispersion