• A Capacity-enhanced local search for the 5G cell switch-off problem 

      Luna, Francisco; Zapata-Cano, Pablo H.; Palomares-Caballero, Ángel; Valenzuela Valdés, Juan F. (2020-03-06)
      Network densification with deployments of many small base stations (SBSs) is a key enabler technology for the fifth generation (5G) cellular networks, and it is also clearly in conflict with one of the target design ...
    • Gain-Reconfigurable Hybrid Metal-Graphene Printed Yagi Antenna for Energy Harvesting Applications 

      Alex-Amor, Antonio; Palomares-Caballero, Ángel; de la Fuente, Elena; Muriel-Barrado, Alfonso; Valenzuela-Valdés, Juan Francisco; [et al.] (2019-04-26)
      This paper presents a hybrid metal-graphene printed Yagi antenna with reconfigurable gain that operates in the 5.5-GHz band. The balun and the driven elements are made of copper, while the directors are made of graphene. ...
    • Glide-Symmetric Pin Phase Shifter implemented in Gap-Waveguide Technology 

      Palomares Caballero, Ángel; Alex Amor, Antonio; Valenzuela Valdés, Juan F.; Luna Valero, Francisco; Padilla de la Torre, Pablo; [et al.] (2019-09-10)
      This paper presents a compact and low-loss waveguide phase shifter based on a pin lattice in glide- symmetric configuration. There is a significant increase in provided phase shift when using a glide-symmetric pin distribution ...
    • Phase Shifter for Millimeter-Wave Frequency Range Based on Glide Symmetric Structures 

      Palomares-Caballero, Ángel; Alex-Amor, Antonio; Valenzuela-Valdés, Juan; Luna, Francisco; Padilla, Pablo (2019-03-13)
      The use of glide symmetry in radiofrequency devices to introduce dispersive effects has been recently proposed and demonstrated. One of these effects is to control the propagation constant of the structure. Here, we propose ...