• Comparative efficiency and power assessment of optical photoconductive material-based terahertz sources for wireless communication systems 

  Yazgan, Ayhan; Jofre Roca, Lluís; Romeu Robert, Jordi (2019-01-01)
  Article
  Accés restringit per política de l'editorial

  Terahertz band has recently attracted the attention of the communication society due to its huge bandwidth and very high-speed wireless communications capability. It has been utilized in a variety of disciplines including ...
• A compact dual-band planar monopole antenna using fractal rings and A Y-shaped feeding transmission line 

  Djafri, Kahina; Challal, Mouloud; Romeu Robert, Jordi (De Gruytr, 2018-01-01)
  Article
  Accés restringit per política de l'editorial

  This paper presents a novel design approach of a compact dual-band monopole antenna with an overall size of 18.9x13x1.6mm3. The proposed antenna is composed of a fractal ring shaped patch fed by a Y-shaped transmission ...
• A figure of merit to assess the performance of photoconductive antennas at terahertz band 

  Romeu Robert, Jordi; Cea Falcó, Marc de; Jofre Roca, Lluís; Yazgan, Ahmet Utku (Institute of Electrical and Electronics Engineers (IEEE), 2017)
  Text en actes de congrés
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  Photoconductive antennas are one of the most efficient ways to radiate and receive EM waves around the 1 THz frequency band. The physical processes involved in photoconductive terahertz signal generation are complex enough ...
• High impedance monopole antenna for indoor terahertz communication system 

  Yazgan, Ayhan; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2017)
  Comunicació de congrés
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  In this study, a wideband terahertz antenna for indoor wireless communication systems is proposed. Antenna has high input impedance which is reasonable for terahertz systems due to the high output impedance of terahertz ...
• The state of art of terahertz sources: a communication perspective at a glance 

  Yazgan, Ayhan; Jofre Roca, Lluís; Romeu Garbí, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2017)
  Comunicació de congrés
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  Terahertz band lying between infrared and microwave is a very promising part of electromagnetic spectrum for spectroscopy, space applications and different kind of imaging applications such as medical and security. Recently, ...
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  GRECO: 30 years of graphical processing techniques for RCS computation 

  Rius Casals, Juan Manuel; Úbeda Farré, Eduard; Heldring, Alexander (2018)
  Text en actes de congrés
  Accés obert

  This contribution to the special session in honor of Prof. Rafael Gómez-Martín will address the 30 year development of graphical processing techniques (GRECO) for fast computation of Radar Cross Section (RCS) of ...
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  Assessment of 3-D printing technologies for millimeter-wave reflectors 

  Romeu Robert, Jordi; Blanch Boris, Sebastián; Vidal, Neus; Lopez-Villegas, Jose Maria; Aguasca Solé, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2018-07-20)
  Article
  Accés obert

  Three different 3D printing technologies: Stereolithography (SLA), Fused Deposition Modeling (FDM) and HP Multi Jet Fusion Technology (MJF) are compared to build a parabolic reflector operating at 100 GHz. Fabrication ...
• Dielectric properties of colon polyps, cancer, and normal mucosa: Ex vivo measurements from 0.5 to 20 GHz 

  Guardiola, Marta; Buitrago Ventura, Santiago; Fernández-Esparrach, Glòria; O'Callaghan Castellà, Juan Manuel; Romeu Robert, Jordi; Cuatrecasas, Miriam; Córdoba, Henry; González Ballester, Miguel A.; Camara, Oscar (2018-06-15)
  Article
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  Colorectal cancer is highly preventable by detecting and removing polyps, which are the precursors. 20 Currently, the most accurate test is colonoscopy, but still misses 22% of polyps due to visualization limitations. In ...
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  A reconfigurable antenna with beam steering and beamwidth variability for wireless communications 

  Towfiq, Asaduzzaman; Bahceci, Israfil; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís; Cetiner, Bedri Artug (2018-07-12)
  Article
  Accés obert

  A reconfigurable antenna (RA) capable of steering its beam into the hemisphere corresponding to ¿ ¿ {-40°,0°,40°}, Ø ¿ {0°,45°,90°,-45°}, and of changing 3-dB beamwidth, where ¿3dB ¿ (40°,100°), Ø ¿ {45°,90°,-45°} for ...
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  Volumetric testing with wedges for a nonconforming discretization of the PMCHWT formulation 

  Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
  Text en actes de congrés
  Accés obert

  The monopolar-Rao-Wilton-Glisson (RWG) discretization of the Poggio-Miller-Chan-Harrington-Wu-Tsai (PM-CHWT) integral equation imposes no continuity constraints in the current expansion across the edges arising from the ...
• Improved accuracy in the scattering analysis of arbitrarily shaped ferromagnetic objects 

  Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
  Text en actes de congrés
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  The electromagnetic scattering analysis of arbitrarily shaped ferromagnetic bodies is usually carried out with the Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) integral equation. In the Method of Moments (MoM) discretization ...
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  Nonconforming discretization of the PMCHWT integral equation applied to arbitrarily shaped dielectric objects 

  Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
  Text en actes de congrés
  Accés obert

  The Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) integral equation is widely used in the scattering analysis of dielectric bodies. The RWG set is normally adopted to expand the electric and magnetic currents in the Method ...

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