This paper introduces a double-strip bull's-eye (BE) antenna design, featuring the addition of a central disc and with substrate-integrated waveguide (SIW) feeding. These attributes make the design particularly suitable for near-field applications, and were the generation of adaptable Bessel beams is of interest. More specifically, the proposed design and feeding configuration facilitates the generation of both zeroth- and first-order Bessel beams as required; i.e. by applying differential phase excitation (0°, 180°) or common phase excitation (0°, 0°) to the external ports, the antenna can demonstrate versatile beamforming functionality. Also, the design has the capability to extend the non-diffracting range (NDR) as well as the operational bandwidth of the antenna launcher when compared to similar implementations as reported in the literature, thereby enhancing its practicality for near-field applications. In particular, the antenna launcher offers a promising solution for advanced near-field communications, sensing scenarios, and new wireless power transmission systems.
Riaz, S., Comite, D., Baccarelli, P., Podilchak, S.K. (2025). Adaptable Bessel Beam Leaky-Wave Launcher with Suppressed Open Stopband. In IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) (pp.2703-2705). 345 E 47TH ST, NEW YORK, NY 10017 USA : Institute of Electrical and Electronics Engineers Inc. [10.1109/AP-S/CNC-USNC-URSI55537.2025.11265984].
Adaptable Bessel Beam Leaky-Wave Launcher with Suppressed Open Stopband
Comite D.;Baccarelli P.;
2025-01-01
Abstract
This paper introduces a double-strip bull's-eye (BE) antenna design, featuring the addition of a central disc and with substrate-integrated waveguide (SIW) feeding. These attributes make the design particularly suitable for near-field applications, and were the generation of adaptable Bessel beams is of interest. More specifically, the proposed design and feeding configuration facilitates the generation of both zeroth- and first-order Bessel beams as required; i.e. by applying differential phase excitation (0°, 180°) or common phase excitation (0°, 0°) to the external ports, the antenna can demonstrate versatile beamforming functionality. Also, the design has the capability to extend the non-diffracting range (NDR) as well as the operational bandwidth of the antenna launcher when compared to similar implementations as reported in the literature, thereby enhancing its practicality for near-field applications. In particular, the antenna launcher offers a promising solution for advanced near-field communications, sensing scenarios, and new wireless power transmission systems.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
