All Stories

  1. A Discrete RET Model for Millimeter-Wave Propagation Through Vegetation

    Article • IEEE Transactions on Antennas and Propagation, April 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  2. 5G: Performance and Evaluation of FS-FBMC against OFDM for High Data Rate Applications at 60 GHz

    Article • IET Signal Processing, January 2018, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha, Rodolfo Gomes

  3. Hollow Clay Brick Wall Propagation Analysis and Modified Brick Design for Enhanced Wi-Fi Coverage

    Article • IEEE Transactions on Antennas and Propagation, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Prof Iñigo Cuiñas, Professor Rafael F Caldeirinha

  4. A 2D Ray-Tracing Based Model for Wave Propagation Through Forests at Microand Millimeter Wave Frequencies

    Article • IEEE Access, January 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  5. Towards 5G: Performance evaluation of 60 GHz UWB OFDM communications under both channel and RF impairments

    Article • Physical Communication, December 2017, Elsevier

    Professor Rafael F Caldeirinha

  6. Electronically Reconfigurable FSS-Inspired Transmitarray for 2-D Beamsteering

    Article • IEEE Transactions on Antennas and Propagation, September 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  7. Cross-polarisation discrimination studies of single trees at 20 and 62.4 GHz

    Article • IET Microwaves Antennas & Propagation, April 2017, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha

  8. Tunable square slot FSS EC modelling and optimisation

    Article • IET Microwaves Antennas & Propagation, April 2017, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha, Prof Iñigo Cuiñas

  9. Depolarisation studies of single trees at 20 GHz

    Article • IET Microwaves Antennas & Propagation, March 2017, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha

  10. Characterization of wireless propagation through traditional Iberian brick walls

    Article • March 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  11. Enabling spatial diversity and beamsteering with reduced RF-chains using reconfigurable transmitarrays

    Article • March 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  12. A Two-Dimensional Ray-Tracing-Based Model for Propagation Through Vegetation: A practical assessment using ornamental plants at 60 GHz. [Wireless Corner]

    Article • IEEE Antennas and Propagation Magazine, February 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Manuel García Sánchez

  13. Modeling and inferring the attenuation induced by vegetation barriers at 2G/3G/4G cellular bands using Artificial Neural Networks

    Article • Measurement, February 2017, Elsevier

    Professor Rafael F Caldeirinha

  14. Input parameter extraction method for point scatterer formulation in vegetation media at millimetre-wave frequencies

    Article • IET Microwaves Antennas & Propagation, January 2017, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha, Manuel García Sánchez

  15. Simplified RET model derived from path loss and directional spectrum measurements in vegetation media at 11.2 and 20 GHz

    Article • IET Microwaves Antennas & Propagation, January 2017, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha

  16. 3-D Mechanically Tunable Square Slot FSS

    Article • IEEE Transactions on Antennas and Propagation, January 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Prof Iñigo Cuiñas, Professor Rafael F Caldeirinha

  17. Wearable Textile Antennas: Examining the effect of bending on their performance.

    Article • IEEE Antennas and Propagation Magazine, January 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  18. Using artificial neural networks to scale and infer vegetation media phase functions

    Article • Neural Computing and Applications, December 2016, Springer Science + Business Media

    Professor Rafael F Caldeirinha

  19. A feasibility study on the extension of the point scatterer formulation to raised canopy forests

    Article • November 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Manuel García Sánchez

  20. 60 GHz channel characterisation and key performance evaluation of HD video transmission

    Article • IET Microwaves Antennas & Propagation, September 2016, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha

  21. FSS-Inspired Transmitarray for Two-Dimensional Antenna Beamsteering

    Article • IEEE Transactions on Antennas and Propagation, June 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  22. Hybrid FSS and Rectenna Design for Wireless Power Harvesting

    Article • IEEE Transactions on Antennas and Propagation, May 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  23. A dual-band sine-square FSS design

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Prof Iñigo Cuiñas

  24. Dual-band single-layer quarter ring frequency selective surface for Wi-Fi applications

    Article • IET Microwaves Antennas & Propagation, March 2016, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha, Prof Iñigo Cuiñas

  25. A Three-Dimensional Directive Antenna Pattern Interpolation Method

    Article • IEEE Antennas and Wireless Propagation Letters, January 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Manuel García Sánchez

  26. Retrieving Vegetation Reradiation Patterns by Means of Artificial Neural Networks

    Article • IEEE Antennas and Wireless Propagation Letters, January 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  27. A Simple Model for Average Reradiation Patterns of Single Trees Based on Weighted Regression at 60 GHz

    Article • IEEE Transactions on Antennas and Propagation, November 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Manuel García Sánchez

  28. Extension of the dRET Model to Forests of Thin Cylinders

    Article • IEEE Transactions on Antennas and Propagation, September 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Manuel García Sánchez

  29. Square Loop and Slot Frequency Selective Surfaces Study for Equivalent Circuit Model Optimization

    Article • IEEE Transactions on Antennas and Propagation, September 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  30. Real-time high-resolution radio frequency channel sounder based on the sliding correlation principle

    Article • IET Microwaves Antennas & Propagation, January 2015, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha

  31. Microwave Propagation Modeling and Measurement of Scattering and Absorption Inside a Canopy Using the FDTD Technique

    Article • IEEE Transactions on Antennas and Propagation, January 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  32. The effect of port and container terminal characteristics on terminal performance

    Article • Maritime Economics & Logistics, December 2014, Springer Science + Business Media

    Professor Rafael F Caldeirinha

  33. A 2D Ray-Tracing Based Model for Micro- and Millimeter-Wave Propagation Through Vegetation

    Article • IEEE Transactions on Antennas and Propagation, December 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Manuel García Sánchez

  34. Passive phase conjugating array using FR4

    Article • November 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  35. Two-dimensional transmitarray beamsteering using stacked tunable metamaterials

    Article • November 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  36. A square loop frequency selective surface parametric study for EC model optimisation

    Article • November 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Prof Iñigo Cuiñas

  37. Performance and evaluation of OFDM and SC - FDE over an AWGN propagation channel under RF impairments using simulink at 60GHz

    Article • November 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  38. A review on the electromagnetic characterisation of building materials at micro- and millimetre wave frequencies

    Article • April 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Prof Iñigo Cuiñas

  39. Time-Variant Radio Channel Characterization and Modelling of Vegetation Media at Millimeter-Wave Frequency

    Article • IEEE Transactions on Antennas and Propagation, March 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Prof Iñigo Cuiñas, Manuel García Sánchez

  40. Estimation of dielectric concrete properties from power measurements at 18.7 and 60 GHz

    Article • November 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  41. A simple scattering model for tree trunks

    Article • August 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  42. Investigation of a time-variant dRET model in vegetation: XXIXth URSI general assembly to be held in Chicago, IL, USA, August 7–16, 2008

    Article • August 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  43. Development and performance assessment of a real time high-resolution RF channel sounder

    Article • July 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  44. Development and Implementation of a Real Time High-Resolution Channel Sounder - IF Stage

    Article • May 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  45. Analysis of the dRET input parameters under varying wind conditions at 20 GHz

    Article • April 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  46. Development and performance analysis of a real time high-resolution channel sounder — IF stage

    Article • April 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  47. Modelling and measurements of the directional spectra of scatter signals inside a formation of tree trunks

    Article • April 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  48. A deconvolution method to remove distortion caused by antenna radiation pattern from measurement

    Article • March 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  49. Shrub-blown time variability in attenuation and scattering at cellular frequencies

    Article • IET Microwaves Antennas & Propagation, January 2010, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha, Prof Iñigo Cuiñas, Manuel García Sánchez

  50. Extension of the dRET Model to Include Scattering from Tree Trunks in Microcell Urban Mobile Scenarios

    Article • January 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  51. Traceme — indoor real-time location system

    Article • November 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  52. Restoration of the RET Phase Function Using Deconvolution

    Article • January 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  53. Wind effect on the scattering from vegetation at cellular phone frequencies

    Article • January 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Dr Ana Vazquez Alejos, Manuel García Sánchez

  54. A reduced Markov channel modelling of vegetation in the forward scattering region at 40 GHz

    Article • January 2007, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha, Manuel García Sánchez

  55. Modelling radio wave propagation through vegetation media: a comparison between RET and dRET models

    Article • January 2007, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha

  56. Radiative Energy Transfer Based Model for Radiowave Propagation in Inhomogeneous Forests

    Article • September 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  57. RET Scattering Function Optimisation in Vegetation Media using Inverse Convolution

    Article • July 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  58. Wind Incidence Effects on Channel Dynamics in Vegetation Media at 40 GHz

    Article • July 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha, Prof Iñigo Cuiñas, Manuel García Sánchez

  59. A Discrete RET Model for Millimeter-Wave Propagation in Isolated Tree Formations

    Article • IEICE Transactions on Communications, June 2005, Institute of Electronics, Information and Communications Engineers (IEICE)

    Professor Rafael F Caldeirinha

  60. Modelling of the re-radiation functions of single trees based on wideband measurements at L-band

    Article • January 2001, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha

  61. A novel FDTD based model for prediction of bistatic RCS of single leaves and trees

    Article • January 2001, the Institution of Engineering and Technology (the IET)

    Professor Rafael F Caldeirinha

  62. IEEE Trans. Profess. Commun.

    Article • IEEE Transactions on Professional Communication, Institute of Electrical & Electronics Engineers (IEEE)

    DI Dr. techn. Issa Ibraheem, Professor Alberto Policriti, Professor Marco d'Ischia, Professor Gianni Pedrizzetti, Professor Ojan Assadian, Professor Graziamaria Corbi, Professor Michel Aillerie, Professor H. Faghihian, Professor J. -C. Spender, Professor Rafael F Caldeirinha, Professor Kamaruzaman Jusoff, Professor TAIAR redha, Professor Ghaleb A. Husseini

  63. Directional Spectrum Modelling in Inhomogeneous Forests at 20 and 62.4 GHz

    Article • Springer Science + Business Media

    Professor Rafael F Caldeirinha

  64. Profeß

    Article • Brill

    Professor Rafael F Caldeirinha, Professor Kamaruzaman Jusoff, Professor TAIAR redha, Professor Georgios P. Fragulidis, Professor Ghaleb A. Husseini

  65. Modelling of directional spectra in vegetation media using RET theory

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  66. Characterisation of depolarisation of radio signals by single trees at 20 GHz

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  67. A discrete model for radiowave scattering in vegetation screens at millimetric wave frequencies

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  68. Radiative energy transfer prediction of excess attenuation of microwave radio signals in a regularly planted orchard

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  69. A Generic Narrowband Model for Radiowave Propagation through Vegetation

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  70. Propagation modelling of bistatic scattering of isolated trees for micro- and millimeter wave urban microcells

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  71. Phase function measurement for modelling radiowave attenuation and scatter in vegetation based on the theory of radiative energy transfer

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha

  72. Co-polar and cross-polar measurements of the re-radiation signal at 20 GHz from a tree and their analysis in the region around the nulls

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Rafael F Caldeirinha