• 3D Beamsteering low complexity reconfingurable multilevel antenna 

      Zhou, Ivan (Universitat Politècnica de Catalunya, 2020-06-30)
      Projecte Final de Màster Oficial
      Accés obert
      Beamforming, in its many variants, is a key spatial processing technique to improve user throughput, system capacity, system coverage as well as reducing interference. Simple architectures enabling beamforming either in ...
    • Microstrip-fed 3D-printed H-sectorial horn phased array 

      Zhou, Ivan; Pradell i Cara, Lluís; López Villegas, José María; Vidal Martínez, Neus; Albert Gali, Miquel; Jofre Roca, Lluís; Romeu Robert, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2022-07-16)
      Article
      Accés obert
      A 3D-printed phased array consisting of four H-Sectorial horn antennas of 200 g weight with an ultra-wideband rectangular-waveguide-to-microstrip-line transition operating over the whole LMDS and K bands (24.25–29.5 GHz) ...
    • Photonic correlators for passive imaging using synthetic aperture radiometry in the microwave band 

      Zhou, Ivan (Universitat Politècnica de Catalunya, 2019-01-30)
      Treball Final de Grau
      Accés obert
      Synthetic aperture radiometers (SAR) is based fundamentally on receiving the natural radiation from a body with an array of N antennas, in order to retrieve the image of the scene the cross correlation between all the ...
    • Reconfigurable dual-polarized beam-steering broadband antenna using a crossed-strips geometry 

      Ramírez Arroyave, Germán Augusto; Zhou, Ivan; Blanch Boris, Sebastián; Towfiq, Asaduzzaman; Cetiner, Bedri Artug; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2021-08)
      Article
      Accés obert
      In this letter, a reconfigurable dual-polarized broadband antenna with beam-steering capabilities using a parasitic layer is proposed for 5G new radio (NR) frequency range 1 (FR-1) applications. The antenna is a dual-port ...
    • Technologies for injection molded antennas for mass production 

      Zhou, Ivan (Universitat Politècnica de Catalunya, 2023-01-19)
      Tesi
      Accés obert
      (English) The deployment of 5G antenna infrastructure and the mandatory adoption of anti-collision radars for automotive cars will require large amount of antennas operating in the millimeter and sub-millimeter wavelength. ...
    • Technology assessment of aperture coupled slot antenna array in Groove Gapwaveguide for 5G millimeter wave applications 

      Zhou, Ivan; Jofre Roca, Lluís; Romeu Robert, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Article
      Accés obert
      A compact triple-layer series fed slot unit array using Groove Gap Waveguide (GGW) technology for 5G millimeter-wave applications is presented in this paper. The design employed a two-step coupling mechanism for the radiating ...
    • Three-Dimensional beamsteering low complexity reconfigurable multilevel antenna 

      Zhou, Ivan; Ramírez Arroyave, Germán Augusto; Montero Bayo, Luca; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís (2020-04)
      Article
      Accés obert
      A low-complexity reconfigurable antenna (RA) capable of steering its beam into nine different directions corresponding to ¿={-42°,0°,42°} in the ¿={25°,0°,155°} planes, and ¿=±25° in the ¿=90° plane, using a reduced number ...
    • Ultra-wideband narrow wall waveguide-to-microstrip transition using overlapped patches 

      Zhou, Ivan; Romeu Robert, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2022-04-12)
      Article
      Accés obert
      An ultrawideband rectangular waveguide to microstrip line transition operating at the whole LMDS and Ka band is presented. The transition is based on exciting three overlapped transversal patches that radiate into the ...