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Listar por autor "Sánchez Escuderos, Daniel"

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A Novel Circularly-Polarized T-shaped Slot Array Antenna in Ka-band

Ferrando-Rocher, Miguel; Herranz Herruzo, José Ignacio; Sánchez-Escuderos, Daniel; Valero-Nogueira, Alejandro (IEEE, 2020-03-20)

[EN] A T-shaped slot-array antenna fed through a Groove Gap Waveguide (GGW) is presented in this paper. The array antenna operates at 30 GHz. The way the slots are excited, along with the T-shape on its lid allows a compact ...
Algoritmos de reconstrucción de corrientes de alta resolución

Sánchez Escuderos, Daniel (Universitat Politècnica de València, 2011-11-03)

[ES] La utilización de la técnica holográfica de microondas para la reconstrucción de las corrientes equivalentes a partir de medidas de campo lejano implica una limitación en la resolución de las corrientes obtenidas. ...
Analysis and Design of a Metamaterial Lens Antenna Using the Theory of Characteristic Modes

Santillán-Haro, Daniel Antonio; Antonino Daviu, Eva; Sánchez-Escuderos, Daniel; Ferrando Bataller, Miguel (Hindawi Limited, 2018)

[EN] A new single-layer metamaterial lens antenna aimed to operate at 10 GHz is proposed in this paper. The lens antenna consists of twelve capacitively coupled unit cells distributed along a ring and illuminated by an ...
Cross polarization in microwave antennas: Case study of a circular waveguide

Santillán-Haro, Daniel Antonio; Antonino Daviu, Eva; Ferrando Bataller, Miguel; Sánchez-Escuderos, Daniel; Navarro-Méndez, Diana Verónica; Carrera-Suárez, Luis Fernando (Universidad Nacional de Chimborazo, 2018)

[ES] Durante la ultima d ¿ ecada, el tema de la polarizaci ¿ on de la antena atrae gran inter ¿ es. ¿ La mejora de la polarizacion cruzada genera una distribuci ¿ on de un campo altamente ¿ simetrico en la apertura de ...
Design of Narrow-Band Dielectric Frequency-Selective Surfaces for Microwave Applications

Coves, Angela; Marini, Stephan; Gimeno, Benito; Sánchez-Escuderos, Daniel; Rodriguez Perez, Ana Maria; Boria Esbert, Vicente Enrique (Institution of Engineering and Technology (IET), 2016-02-19)

Two types of narrow-band dielectric frequency-selective surfaces (DFSSs) have been designed at microwave frequencies. First, a DFSS showing total reflection has been analysed under guided-mode resonance conditions, based ...
Dielectric Bed of Nails in Gap-Waveguide Technology at Millimeter-Wave Frequencies

Sánchez Escuderos, Daniel; Ferrando Bataller, Miguel; Berenguer Verdú, Antonio José; Baquero Escudero, Mariano; Valero-Nogueira, Alejandro (Institute of Electrical and Electronics Engineers (IEEE), 2014-08)

Gap-waveguide technology is based on the guidance of a quasi-TEMmode between two PEC plates. The confinement is possible due to a PEC/PMC condition on laterals, which prohibits the propagation of waves on those directions. ...
Diseño avanzado de antenas compactas para la banda ICM a 2.4 GHz

Palacios Vallés, Jesús (Universitat Politècnica de València, 2017-11-24)

En el presente proyecto, se realiza el estudio de las técnicas de compactación utlizadas en antenas eléctricamente pequeñas. En primer lugar, se recopila la información de diferentes antenas que utilizan métodos de ...
Dual Circularly-Polarized Slot-Array Antenna in Ka-Band fed by Groove Gap Waveguide

Ferrando-Rocher, Miguel; Herranz Herruzo, José Ignacio; Sánchez-Escuderos, Daniel; Valero-Nogueira, Alejandro (IEEE, 2020-07-10)

[EN] A dual circularly-polarized slot-array antenna fed by a Groove Gap Waveguide (GGW) and operating in the KaBand is presented in this paper. A simple mechanism is proposed to switch the polarization, from RHCP to LHCP, ...
Dual-polarized planar lens antenna designed with a quad-ridged frequency selective surface

Moy-Li, Hon Ching; Sánchez-Escuderos, Daniel; Antonino Daviu, Eva; Ferrando Bataller, Miguel (John Wiley & Sons, 2019-02)

[EN] This letter presents a microwave planar lens illuminated by a radially corrugated horn antenna. The lens is formed by a set of 5x5 multilevel unit cells working as a frequency selective surface. Each layer of the unit ...
Elementos radiantes para antenas desarrolladas en tecnología Gap waveguide

Torres Guaita, Ignacio (Universitat Politècnica de València, 2020-05-13)

[ES] Cómo parte de todos los avances tecnológicos en el ámbito de las telecomunicaciones y la quinta generación de telefonía móvil (5G), están surgiendo nuevas mejoras en torno a las comunicaciones por satélite. Una de ...
Evanescent-Mode Ridge-Waveguide Radiating Filters for Space Applications

Sánchez-Escuderos, Daniel; Ruiz-Garnica, Jesús; Baquero Escudero, Mariano; Soto Pacheco, Pablo; Boria Esbert, Vicente Enrique; Tosso, Giovanni; Angeletti, P.; GUGLIELMI, MARCO (Institute of Electrical and Electronics Engineers, 2019-10)

[EN] This paper describes a new family of all-metallic radiators based on below-cutoff apertures fed by evanescentmode ridge waveguide filters. The pass band of the filters and the polarization of the apertures are configured ...
Grating Lobes Reduction Using a Multilayer Frequency Selective Surface on a Dual-Polarized Aperture Array Antenna in Ka-Band

Sánchez-Escuderos, Daniel; Ferrando-Rocher, Miguel; Herranz Herruzo, José Ignacio; Valero-Nogueira, Alejandro (Institute of Electrical and Electronics Engineers, 2020)

[EN] This paper presents a multilayer frequency selective surface for a dual-polarized aperture array antenna in Ka-band. The elements of the array are cylindrical open cavities with a diameter of at 30 GHz, and spaced one ...
Groove Gap Waveguide as an alternative to rectangular waveguide for H-plane components

Berenguer Verdú, Antonio José; Sánchez-Escuderos, Daniel; Bernardo Clemente, Bernardo; Baquero Escudero, Mariano; Boria Esbert, Vicente Enrique (Institution of Engineering and Technology (IET), 2016-05-25)

A comparative study between groove gap waveguide (GGW) technology and classical H-plane rectangular waveguide (RWG) technology is presented by evaluating their performance in the implementation of a narrow-band filter at ...
High-resolution algorithms for the reconstruction of the equivalent currents of an antenna by means of modal theory and a priori information

Sánchez Escuderos, Daniel (Universitat Politècnica de València, 2010-05-24)

El objetivo del diagnóstico de antenas es la detección de errores en antena fabricadas. Dado que este diagnóstico es difícil de realizar simplemente observando medidas de campo, el diagnóstico se realiza usando las corrientes ...
Implementación de la MAC de una red de acceso punto a multipunto sobre coaxial con tecnología G.hn

Vicent Colonques, Xavier (Universitat Politècnica de València, 2017-11-17)

G.hn es un estándar de conectividad de banda ancha que puede operar sobre tres tipos de medios: par telefónico, cable coaxial y líneas eléctricas. En Marvell se diseña el microchip G.hn y se implementa todo el firmware ...
Lentes de Microondas de bajo perfil en la banda de ondas milimétricas

Moy Li, Hon Ching (Universitat Politècnica de València, 2020-09-02)

[ES] Los sistemas de antenas de bajo perfil en la banda de ondas milimétrica han suscitado un creciente interés en los últimos años. Esta tesis presenta el diseño de antenas de bajo perfil basadas en lentes planas de ...
Low-loss Circularly Polarized Periodic Leaky-Wave Antenna

Sánchez-Escuderos, Daniel; Ferrando Bataller, Miguel; Herranz Herruzo, José Ignacio; Rodrigo Peñarrocha, Vicent Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2016)

This letter presents a periodic leaky-wave array antenna with circular polarization at millimeter-wave frequencies. The antenna is designed on the low-loss planar Goubau transmission line to maximize the radiation efficiency ...
Low-Profile Radially Corrugated Horn Antenna

Moy-Li, Hon Ching; Sánchez-Escuderos, Daniel; Antonino Daviu, Eva; Ferrando Bataller, Miguel (Institute of Electrical and Electronics Engineers, 2017)

[EN] This letter proposes a low-profile horn antenna with radial corrugations. The depth and width of the corrugations are suitably chosen to excite the mode HE11 in the corrugated section. This mode spreads uniformly ...
Mechanical phase shifter in gap-waveguide technology

Sánchez-Escuderos, Daniel; Herranz Herruzo, José Ignacio; Ferrando-Rocher, Miguel; Valero-Nogueira, Alejandro (IEEE, 2020-03-20)

[EN] This contribution presents a low-loss mechanical phase shifter in gap-waveguide technology. The phase shifter is aimed at ground terminals for Ka-band satellite on-the-move applications. The use of the gap-waveguide ...
Microwave Planar Lens Antenna Designed with a Three-Layer Frequency Selective Surface

Sánchez-Escuderos, Daniel; Moy-Li, Hon Ching; Antonino Daviu, Eva; Cabedo Fabrés, Marta; Ferrando Bataller, Miguel (Institute of Electrical and Electronics Engineers, 2017)

[EN] A multilevel Frequency Selective Surface (FSS) formed by a non-uniform distribution of circular holes on a metallic sheet is presented. The FSS is aimed at working as a planar lens to increase the gain of the feeding ...