Now showing items 21-28 of 28

  • Multiband properties of a fractal tree antenna generated by electrochemical deposition 

    Puente Baliarda, Carles; Claret Bonet, Josep; Romeu Robert, Jordi; López-Salvans, M Q; Pous Andrés, Rafael (Institution of Electrical Engineers, 1996-12)
    Article
    Open Access
    Experimental results on a fractal tree-like antenna are reported. The fractal structure is generated by electrochemical deposition. The antenna presents a multiband behaviour with a denser band distribution than the ...
  • On the behavior of the Sierpinski multiband fractal antenna 

    Puente Baliarda, Carles; Romeu Robert, Jordi; Pous Andrés, Rafael; Cardama Aznar, Ángel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-04-30)
    Article
    Open Access
    The multiband behavior of the fractal Sierpinski antenna is described. Due to its mainly triangular shape, the antenna is compared to the well-known single-band bow-tie antenna. Both experimental and numerical results show ...
  • Perturbation of the sierpinski antenna to allocate the operating bands 

    Puente Baliarda, Carles; Romeu Robert, Jordi; Bartolomé, R; Pous Andrés, Rafael (Institution of Electrical Engineers, 1996-11)
    Article
    Open Access
    A scheme for modifying the spacing between the bands of the Sierpinski antenna is introduced. Experimental results of two novel designs of fractal antennas suggest that the fractal structure can be perturbed to enable the ...
  • Small but long koch fractal monopole 

    Puente Baliarda, Carles; Romeu Robert, Jordi; Pous Andrés, Rafael; Ramis, J; Hijazo, A (Institution of Electrical Engineers, 1998-01)
    Article
    Open Access
    A small but long wire fractal antenna based on the Koch curve is presented. Experimental and numerical results show that the antenna improves the features of a common linear monopole. The radiation resistance is increased ...
  • The cgm and the fdtd for sar studies 

    Pous Andrés, Rafael; Mallorquí Franquet, Jordi Joan; Bayonas, F (Institute of Electrical and Electronics Engineers (IEEE), 1994)
    Conference report
    Open Access
    In the study of electromagnetic radiation effects over dielectric bodies, effective numerical methods are needed. At present, there is a lack of tools for measuring these effects and due to the huge growth of microwave ...
  • The measured equation of invariance and its application to transmission line modelling 

    Pous Andrés, Rafael; Prouty, M.D.; Mei, K.K. (. WORSHOP PROCEEDINGS, 1993)
    Conference report
    Open Access
    The Measured Equation of Invariance (MEI) is a geometry-dependent Finite Difference equation that can be used to terminate a mesh extremely close to the object of interest. The mesh can be terminated much closer than what ...
  • The measured equation of invariance: a new concept in field computation 

    Mei, K.K.; Pous Andrés, Rafael; Chen, Z.; Liu, Y.W. (1992-06)
    Article
    Open Access
    Computations of electromagnetic fields are based either on differential equations or on integral equations. The differential equation approach using finite difference or finite element methods results in sparse matrices, ...
  • Variations on the fractal Sierpinski antenna flare angle 

    Puente Baliarda, Carles; Navarro Bernal, Manuel; Romeu Robert, Jordi; Pous Andrés, Rafael (Institute of Electrical and Electronics Engineers (IEEE), 1998)
    Conference report
    Open Access
    A further investigation on the fractal multiband Sierpinski antenna is introduced. It is shown that a variation on the antenna's flare angle is translated into a shift of the operating bands, as well as into a change in ...