Electromagnetic Band-Gap (EBG) media, working right above the band-gap can shape the radiation of a simple emitter embedded in their periodic structures. In this region of the dispersion diagram, degenerate lattice modes can be selectively excited with a proper positioning of the primary sources. This paper presents the design of an antenna that exploits such physical mechanism, which is potentially attractive at mm-waves since it relies on dielectric structures. An antenna fed by two sources and based on a square lattice of dielectric cylinders is presented. For the first time, the dependences of radiation properties on some geometrical parameters are investigated before moving to a final realistic design.
Ceccuzzi, S., Tognolatti, L., Baccarelli, P., Jandieri, V., Ponti, C., Schettini, G. (2020). Radiation Shaping by Using Lattice Modes in a Dual-feed Dielectric Structure. In 14th European Conference on Antennas and Propagation, EuCAP 2020 (pp.1-4). Institute of Electrical and Electronics Engineers Inc. [10.23919/EuCAP48036.2020.9135640].