The paper presents an experimental demonstration of dynamically encircling an exceptional point (EP) in a waveguide, which is a critical point where two resonant modes coalesce. This phenomenon has been linked to various counter-intuitive behaviors in systems with gain or loss. The authors show that the dynamical encircling of an EP can be mapped onto the problem of scattering through a two-mode waveguide, allowing for the first time the observation of non-adiabatic effects. Specifically, they design a waveguide structure that steers incoming waves around an EP during transmission, inducing mode transitions that make the device a robust and asymmetric switch between different waveguide modes. The experimental results confirm the asymmetric switching effect, demonstrating the robustness of the transmission values with respect to variations in input frequency. The work opens new avenues for exploring exceptional point physics in practical applications, such as in microwave, light, acoustic, and matter wave systems.The paper presents an experimental demonstration of dynamically encircling an exceptional point (EP) in a waveguide, which is a critical point where two resonant modes coalesce. This phenomenon has been linked to various counter-intuitive behaviors in systems with gain or loss. The authors show that the dynamical encircling of an EP can be mapped onto the problem of scattering through a two-mode waveguide, allowing for the first time the observation of non-adiabatic effects. Specifically, they design a waveguide structure that steers incoming waves around an EP during transmission, inducing mode transitions that make the device a robust and asymmetric switch between different waveguide modes. The experimental results confirm the asymmetric switching effect, demonstrating the robustness of the transmission values with respect to variations in input frequency. The work opens new avenues for exploring exceptional point physics in practical applications, such as in microwave, light, acoustic, and matter wave systems.