Browsing by Author "Akazzim, Youness"Més informacióMés informació

Now showing items 1-12 of 12

    • An UWB Tapered Slot Vivaldi Antenna (TSA) with improved characterestics 

      Akazzim, Youness; Kanjaa, Mohammed; El Mrabet, Otman; Jofre Roca, Lluís; Essaaidi, Mohamed (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference lecture
      Restricted access - publisher's policy
      In this paper, an UWB Tapered Slot Vivaldi Antenna (TSA) is presented. The proposed TSA is optimized in order to increase the bandwidth and ensure a good impedance matching at low and bandwidth frequencies while respecting ...

    • Low-Profile UWB probe for precise time-domain functional imaging 

      Akazzim, Youness; El Mrabet, Otman; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Conference lecture
      Restricted access - publisher's policy
      In this paper a Double Ridge Waveguide (DRW) antenna fed by a microstrip line covering a frequency band from 0.5GHz to 2.5GHz is designed, fabricated, and measured, for functional microwave imaging. The proposed DRW antenna ...

    • M-Port rotationally symmetric antennas for advanced MIMO applications 

      Aldana Alonso, Rubén; Molins Benlliure, Jaime; Akazzim, Youness; Llanga Vargas, Anibal; Jofre Cruanyes, Marc; Cabedo Fabrés, Marta; Antonino Daviu, Eva; Romeu Robert, Jordi; Ferrando Bataller, Miguel; Jofre Roca, Lluís (Unión Científica Internacional de Radio (URSI), 2024)
      Conference report
      Open Access
      Multiple-input multiple-output (MIMO) technology has emerged as a highly promising solution for wireless communication, offering an opportunity to overcome the limitations of traffic capacity in high-speed broadband wireless ...

    • Magnetoelectric dipole antenna extending NLOS short-distance vehicular communication with orbital angular momentum modes 

      Jofre Cruanyes, Marc; Akazzim, Youness; Towfiq, Asaduzzaman; Cetiner, Bedri Artug; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference lecture
      Restricted access - publisher's policy
      The ability to utilize resources to meet the need of growing diversity in services and user behavior marks the future of cognitive wireless communication systems. Cognitive wireless technologies for vehicular communications, ...

    • Magnetoelectric dipole antenna framework supporting orbital angular momentum modes 

      Jofre Cruanyes, Marc; Akazzim, Youness; Blanch Boris, Sebastián; Romeu Robert, Jordi; Cetiner, Bedri Artug; Jofre Roca, Lluís (2024-04)
      Article
      Restricted access - publisher's policy
      The ability to utilize resources to meet the need of growing diversity of communication services and user behavior marks the future of cognitive wireless communication systems. Cognitive wireless technologies for vehicular ...

    • Microwave imaging for brain functional monitoring 

      Akazzim, Youness (Universitat Politècnica de Catalunya, 2024-06-17)
      Doctoral thesis
      Open Access
      (English) The use of microwave imaging techniques in medical applications has gained significant interest because of its non-ionizing character, low cost, and body penetrability. Different techniques and systems for microwave ...

    • Microwave monitoring of Parkinson disease using a realistic human head model 

      Akazzim, Youness; Gugliermino, Martina; Rodríguez Duarte, David Orlando; Tobón Vásquez, Jorge Alberto; Vipiana, Francesca; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Open Access
      Parkinson's disease (PD) is a widespread neurode-generative disorder characterized by the loss of dopaminergic neurons from the substantia nigra, causing bradykinesia, tremors, rigidity, and postural instability. In this ...

    • Multi-element UWB probe optimization for medical microwave imaging 

      Akazzim, Youness; El Mrabet, Otman; Romeu Robert, Jordi; Jofre Roca, Lluís (Multidisciplinary Digital Publishing Institute (MDPI), 2023-01-01)
      Article
      Open Access
      The need for non-ionizing techniques for medical imaging applications has led to the use of microwave signals. Several systems have been introduced in recent years based on increasing the number of antennas and frequency ...

    • Nonlinear microwave susceptibility measurements using intermodulation products on a microfluidic platform 

      Palacios Arias, César Augusto; Jofre Cruanyes, Marc; López Montero, María José; Akazzim, Youness; Jofre Cruanyes, Lluís; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2024-05-31)
      Article
      Open Access
      Measuring the nonlinear responses of living cells has enabled an understanding of their behavior and functionality. Currently, this response has been studied at radio and optical frequencies, leaving an unexplored gap in ...

    • Resonance-based microwave monitoring of live/dead bacteria in a microfluidic channel 

      Ataa-Allah, Houda; Aznabet, Mariem; Palacios Arias, César Augusto; Akazzim, Youness; El mrabet, Otman; Jofre Cruanyes, Marc; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Restricted access - publisher's policy
      In this work, we have studied a highly sensitive microwave sensor for the detection of Escherichia coli (E. coli) bacteria at the single-cell level. The proposed system integrates a microwave sensor with a microfluidic ...

    • UWB microwave functional brain activity extraction for Parkinson's disease monitoring 

      Akazzim, Youness; Palacios Arias, César Augusto; Jofre Cruanyes, Marc; El Mrabet, Otman; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2024-01-31)
      Article
      Open Access
      Microwaves have proven their imaging capabilities to visualize the body composition for medical applications, thanks to their penetration inside biological structures. In this context, this article presents a novel methodology ...

    • UWB-modulated microwave imaging for human brain functional monitoring 

      Akazzim, Youness; Jofre Cruanyes, Marc; El Mrabet, Otman; Romeu Robert, Jordi; Jofre Roca, Lluís (Multidisciplinary Digital Publishing Institute (MDPI), 2023-04-28)
      Article
      Open Access
      Morphological microwave imaging has shown interesting results on reconstructing biological objects inside the human body, and these parameters represent their actual biological condition, but not their biological activity. ...