Enviaments recents

  • 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)
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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)
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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)
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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, ...
  • GRECO: 30 years of graphical processing techniques for RCS computation 

    Rius Casals, Juan Manuel; Úbeda Farré, Eduard; Heldring, Alexander (2018)
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    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 ...
  • 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)
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    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)
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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 ...
  • 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)
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    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 ...
  • Hierarchical discretization of the PMCHWT formulation with jump current discontinuities for the scattering analysis of ferromagnetic objects 

    Úbeda Farré, Eduard; Sekulic, Ivan; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    In the discretization of the Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) formulation by the Method of Moments (MoM), the unknown currents are usually expanded with the divergence-conforming RWG set. Recently, the ...
  • On the accuracy of the adaptive cross aproximation algorithm 

    Heldring, Alexander; Úbeda Farré, Eduard; Sekulic, Ivan; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    This contribution identifies an often ignored source of uncertainty in the accuracy of the adaptive cross approximation algorithm, and proposes a combination of adaptations that reduce this uncertainty with negligible ...
  • Frequency extrapolation of IE-MEI linear system Coefficients in 2D 

    Rius Casals, Juan Manuel; Heldring, Alexander; Úbeda Farré, Eduard (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    The Integral Equation MEI (IE-MEI) method for the sparsification of Method of Moments linear system matrix is revisited here. It achieves cpu computation time and storage memory requirements of order O(N ) (for 2D perfectly ...
  • A simple and effective microwave invisibility cloak based on frequency selective surfaces 

    Yuste, Pedro; Rius Casals, Juan Manuel; Romeu Robert, Jordi; Blanch Boris, Sebastián; Heldring, Alexander; Úbeda Farré, Eduard (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    This paper presents the design, simulation, manufacturing and testing of a simple invisibility cloak based on a frequency selective surface (FSS). The work is focused on cloaking an electrically thin dielectric cylinder ...
  • Aplicación del método de la descomposición modal al análisis de radomos esféricos 

    Romeu Robert, Jordi (Universidad de Málaga, 1992)
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