Search Results - "R. Boix, Rafael"

Accurate and Efficient Modeling to Calculate the Voltage Dependence of Liquid Crystal-Based Reflectarray Cells by Perez-Palomino, Gerardo, Florencio, Rafael, Encinar, Jose A., Barba, Mariano, Dickie, Raymond, Cahill, Robert, Baine, Paul, Bain, Michael, Boix, Rafael R.

“…Two models that can predict the voltage-dependent scattering from liquid crystal (LC)-based reflectarray cells are presented. The validity of both numerical…”
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Design of Broadband Aperture-Coupled Microstrip Antenna Arrays With Differential Feeding by Delgado-Lozano, Ignacio M., Fernandez-Prieto, Armando, Losada, Vicente, Boix, Rafael R., Medina, Francisco

“…This paper proposes the design of broadband microstrip antennas fed by differential microstrip lines. The designed broadband antennas are composed of two…”
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Balanced-to-Balanced Microstrip Diplexer Based on Magnetically Coupled Resonators by Fernandez-Prieto, Armando, Lujambio, Aintzane, Martel, Jesus, Medina, Francisco, Martin, Ferran, Boix, Rafael R.

“…Two balanced-to-balanced planar diplexers based on magnetically coupled microstrip resonators are proposed in this paper. For the first prototype, each…”
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Compact Multilayered Balanced-to-Balanced Dual- and Tri-band Diplexers Based on Magnetically Coupled Open-Loop Resonators by Medran del Rio, Jose L., Fernandez-Prieto, Armando, Martel, Jesus, Boix, Rafael R., Medina, Francisco

“…Two new compact balanced-to-balanced diplexers composed of two multiband balanced bandpass filters in a multilayer configuration are proposed in this letter to…”
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On the Excitation of Magnetic Current Surface Waves in Truncated Periodic Arrays of Slots under Extraordinary Transmission conditions by Camacho, Miguel, Losada, Vicente, Boix, Rafael R., Medina, Francisco

“…In this paper, we explore the excitation of magnetic current surface waves in truncated periodic arrays of slots in a conducting screen. A specialized Method…”
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Spectral MoM NUFFT-Based Formulation for the Efficient Analysis of High-Order Bandpass FSSs With Tightly Packed Nonresonant Elements in Skewed Grid by Corcoles, Juan, Boix, Rafael R.

“…This communication presents a formulation of the spectral-domain Method of Moments (spectral MoM) for the analysis of periodic multilayered structures with a…”
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NUFFT-Accelerated Spectral-Domain MoM With Asymmetric Rooftop Basis Functions for Multilayered Structures With Periodic Metallizations by Corcoles, Juan, Camacho, Miguel, Boix, Rafael R.

“…In this article, we present an efficient implementation of the spectral-domain method of moments (SD-MoM) for the analysis of periodic multilayered structures…”
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Flat Reflectarray That Generates Adjacent Beams by Discriminating in Dual Circular Polarization by Florencio, Rafael, Encinar, Jose A., Boix, Rafael R., Barba, Mariano, Toso, Giovanni

“…One planar <inline-formula> <tex-math notation="LaTeX">18 \times 18 </tex-math></inline-formula> cm 2 reflectarray prototype, capable of generating adjacent…”
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NUFFT for the Efficient Spectral Domain MoM Analysis of a Wide Variety of Multilayered Periodic Structures by Camacho, Miguel, Boix, Rafael R., Medina, Francisco

“…In this paper the Method of Moments (MoM) in the spectral domain is used for the analysis of multilayered structures containing periodic arrays of either…”
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Leveraging Symmetry in the Analysis of Mirror-Symmetric Multilayered Periodic Structures with Application to LP-to-CP Converter Design by Camacho, Miguel, Boix, Rafael R., Corcoles, Juan, Medina, Francisco

“…This communication proves that the analysis of the scattering by a mirror-symmetric multilayered periodic structure can be replaced by the analysis of the…”
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Reflectarray Antennas for Dual Polarization and Broadband Telecom Satellite Applications by Florencio, Rafael, Encinar, José A., Boix, Rafael R., Losada, Vicente, Toso, Giovanni

“…A reflectarray antenna with improved performance is proposed to operate in dual-polarization and transmit-receive frequencies in Ku-band for broadcast…”
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Far-Field and Near-Field Physics of Extraordinary THz Transmitting Hole-Array Antennas by Camacho, Miguel, Boix, Rafael R., Kuznetsov, Sergei A., Beruete, Miguel, Navarro-Cia, Miguel

“…Despite three decades of effort, predicting accurately extraordinary transmission through subwavelength hole arrays has proven challenging. The lack of…”
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Design of Broadband Aperture-Coupled Stacked Microstrip Antennas Using Second-Order Filter Theory by Garcia-Alcaide, Nieves, Fernandez-Prieto, Armando, Boix, Rafael R., Losada, Vicente, Martel, Jesus, Medina, Francisco

“…In this article, the authors propose a lumped circuit methodology for the design of broadband stacked microstrip patch antennas fed through an aperture. First,…”
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Dual-Band Reflectarray to Generate Two Spaced Beams in Orthogonal Circular Polarization by Variable Rotation Technique by Martinez-de-Rioja, Daniel, Florencio, Rafael, Martinez-de-Rioja, Eduardo, Arrebola, Manuel, Encinar, Jose A., Boix, Rafael R.

“…This contribution describes the design of a reflectarray to produce two adjacent beams per feed in orthogonal circular polarization (CP) simultaneously at…”
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Dual Polarized Reflectarray Transmit Antenna for Operation in Ku- and Ka-Bands With Independent Feeds by Martinez-de-Rioja, Eduardo, Encinar, Jose A., Barba, Mariano, Florencio, Rafael, Boix, Rafael R., Losada, Vicente

“…A reflectarray antenna capable of operating independently in the transmit frequencies (from a satellite) in Ku-band (11-13 GHz) and Ka-band (19-20 GHz) has…”
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Optimized Periodic MoM for the Analysis and Design of Dual Polarization Multilayered Reflectarray Antennas Made of Dipoles by Florencio, Rafael, Boix, Rafael R., Encinar, Jose A., Toso, Giovanni

“…A hybrid version of the Method of Moments (MoM) is applied to the analysis of the scattering of plane waves by periodic multilayered structures containing…”
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Symmetry and Finite-Size Effects in Quasi-Optical Extraordinarily THz Transmitting Arrays of Tilted Slots by Camacho, Miguel, Nekovic, Ajla, Freer, Suzanna, Penchev, Pavel, Boix, Rafael R., Dimov, Stefan, Navarro-Cia, Miguel

“…Extraordinarily transmitting arrays are promising candidates for quasi-optical (QO) components due to their high frequency selectivity and beam scanning…”
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Dual-Frequency Reflectarray Cell to Provide Opposite Phase Shift in Dual Circular Polarization With Application in Multibeam Satellite Antennas by Martinez-de-Rioja, Daniel, Florencio, Rafael, Encinar, Jose A., Carrasco, Eduardo, Boix, Rafael R.

“…A new reflectarray cell is proposed to simultaneously provide opposite phase shifts between orthogonal circular polarizations at two frequencies (19.7 and…”
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Simple and Compact Balanced Bandpass Filters Based on Magnetically Coupled Resonators by Fernandez-Prieto, Armando, Lujambio, Aintzane, Martel, Jesus, Medina, Francisco, Mesa, Francisco, Boix, Rafael R.

“…A simple strategy is proposed to design differential-mode bandpass filters with good common-mode (CM) rejection using simple resonators. Specifically, the CM…”
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Enhanced MoM Analysis of the Scattering by Periodic Strip Gratings in Multilayered Substrates by Florencio, Rafael, Boix, Rafael R., Encinar, Jose A.

“…The method of moments (MoM) is applied to the analysis of the scattering of a multilayered periodic strip grating by a plane wave with oblique incidence and…”
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