3 papers
physics.app-ph2026
Upper Bounds on Efficiency of Pixel Antennas
Albert Salmi, Philipp del Hougne, Leo Lahti +1
This letter presents a method to compute fundamental bounds on the total efficiency of pixel antennas. Using semidefinite relaxation, we obtain an upper bound on the optimization p…
eess.SP2026
Electromagnetically Consistent Bounds on Information Transfer in Real-World RIS-Parametrized Wireless Channels
Albert Salmi, Ville Viikari, Philipp del Hougne
A reconfigurable intelligent surface (RIS) endows a wireless channel with programmability that can be leveraged to optimize wireless information transfer. While many works study al…
physics.app-ph2024
Optimization of Embedded Element Patterns of Reactively Loaded Antenna Arrays
Albert Salmi, Miloslav Capek, Lukas Jelinek +2
This paper introduces a framework for synthesizing reactively loaded antennas and antenna arrays. The framework comprises two main components: computing the fundamental bound using…