DAGLIE- Dispersive Analyses of GLIdE-symmetric all-metal structures
Abstract
Glide-symmetric (G-S) structures have received great attention in the last decade thanks to their unconventional dispersive features. They maximize the open stopÂband width and offer a linear dispersion over a large bandwidth. These features can be exploited for innovative designs of devices at microwaves and beyond. Recently, they have been proposed to design EBG, filters, artificial waveguides and metamaÂterials lenses. More interestingly, GS can be achieved through all-metal structures, whose geometric features can be controlled to reproduce slow waves with attractive dispersive behaviors without the use of dielectrics. The research activities proposed in this document aims at studying, for the first time, the dispersive features of all-metal open G-S waveguides, which are then exÂploited to design planar all-metal leaky-wave antennas (LWAs). These class of wellÂknown devices, generally compact and low cost, can offer both wideband broadside radiation (in the order of 12-15 percent, and possibly beyond), or high-gain beams scanÂning with the frequency. These features can be of interest for several applications (satellite and terrestrial communications, sensing, imaging, etc.), whilst the presÂence of all-metal structures is extremely desirable for devices working at frequencies beyond 60-80 GHz, and for space or aeronautics applications. We propose the study of an ad-hoc, accurate and efficient, numerical tool for the analysis of open G-S structures, which is then exploited to explore their dispersive features, as well as to design and simulate the first all-metal G-S LWAs.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 22, 2024
- Source ID
- FA86552317018
Entities
People
- Davide Comite
Organizations
- Air Force Office of Scientific Research
- Sapienza University of Rome
- United States Air Force