Muller, Andrei A.; Soto Pacheco, Pablo; Dascalu, Dan; Neculoiu, Dan; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers (IEEE), 2011-06)
This letter proposes a spherical 3-D Smith Chart suitable for representing both active and passive microwave circuits. Using the mathematical concept of the Riemann sphere, the extended reflection coefficient plane is ...
[EN] The perfect absorption of bending waves by thermally tunable subwavelength absorbers is analytically and experimentally demonstrated in this work for a reflection problem in beams. These absorbers are local resonators ...
[EN] An Acoustic Black Hole (ABH) in a one-dimensional (1D) beam is a passive vibration damping device based on a local reduction of the beam thickness attached to a thin layer of attenuating material. This work aims at ...
Diaz Rubio, Ana; Kosulnikov, Sergei; Tretyakov, Sergei(Institute of Electrical and Electronics Engineers, 2022-08)
[EN] The use of reconfigurable intelligent surfaces (RISs) foroptimization of propagation channels is one of the most promising and revolutionizing techniques for improving efficiency of the next generation of communications ...
Rubio Arjona, Lorenzo(Universitat Politècnica de València, 2011-12-09)
This figure shows the magnitude of both the reflection and transmission coefficients, also known in the literature as the Fresnel coefficients, in terms of the angle of incidence. This representation corresponds to a wave ...
Rubio Arjona, Lorenzo(Universitat Politècnica de València, 2011-12-09)
This figure shows the magnitude of the reflection coefficient, also known in the literature as the Fresnel coefficient, in terms of the angle of incidence. This representation corresponds to a wave propagating in free space ...
Rubio Arjona, Lorenzo(Universitat Politècnica de València, 2011-12-09)
This figure shows the magnitude of the reflection coefficient, also known in the literature as the Fresnel coefficient, in terms of the angle of incidence. This representation corresponds to a wave propagating in free space ...
Rubio Arjona, Lorenzo(Universitat Politècnica de València, 2011-12-09)
This figure shows the magnitude of the rough surface scattering coefficient in terms of the angle of incidence. This representation corresponds to a wave propagating in free space an impinging onto a rough reflection surface ...