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Listar por palabra clave "Antenna measurements"

Mostrando ítems 1-12 de 12

Design and Characterization of a Magnetic Loop Antenna for Partial Discharge Measurements in Gas Insulated Substations

Mier Escurra, Christian; Rodrigo Mor, Armando; Vaessen, Peter (Institute of Electrical and Electronics Engineers, 2021-09-01)

[EN] A recent investigation explored a new measuring concept used in partial discharges (PD) measurements in gas insulated substations (GIS), consisting of a magnetic loop antenna. The sensor¿s frequency response was ...
Design and implementation of a low cost isotropic electric field sensor for SAR measurements

Quispe, Marco; Samaniego, Javier; Olivares, Jorge; Adriano, Rolando; Pérez, B.; Inca, Saúl (Institute of Electrical and Electronics Engineers, 2024-11)

[EN] Specific Absorption Rate (SAR) measurement systems are used to evaluate exposure to fields radiated by wireless devices placed close to people's bodies. One of the fundamental elements of these systems is an isotropic ...
Dual Circularly Polarized Aperture Array Antenna in Gap Waveguide for High-Efficiency Ka-Band Satellite Communications

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

[EN] A novel fully metallic Ka-band dual circularly polarized antenna array is presented in this contribution. It consists of 64 circular apertures (8x8) and it is implemented in gap waveguide technology. The antenna ...
Initial UWB in-body channel characterization using a novel multilayer phantom measurement setup

Pérez-Simbor, Sofia; Barbi, Martina; Garcia-Pardo, Concepcion; Castelló-Palacios, Sergio; Cardona Marcet, Narciso (IEEE, 2018-11-13)

[EN] Wireless Body Area Networks (WBANs) are a promising technology for medical purposes. Currently the WBAN are classified into: implanted (in-), surface (on-) or outside (off-) body communications regarding the location ...
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 ...
Millimeter Wave MISO-OFDM Transmissions in an Intra-Wagon Environment

Sanchis Borrás, Concepción; Molina-García-Pardo, José-María; Rubio Arjona, Lorenzo; Pascual-García, Juan; Rodrigo Peñarrocha, Vicent Miquel; Juan Llacer, Leandro; Reig, Juan (Institute of Electrical and Electronics Engineers, 2021-08)

[EN] In this paper, the maximum achievable throughput is analyzed in the intra-wagon channel when multiple-input single-output (MISO) and orthogonal frequency division multiplexing (OFDM), MISO-OFDM, techniques are used. ...
On the Contribution of Dense Multipath Components in an Intrawagon Environment for 5G mmW Massive MIMO Channels

Challita, Frédéric; Rodrigo Peñarrocha, Vicent Miquel; Rubio Arjona, Lorenzo; Reig, Juan; Juan-Llácer, Leandro; Pascual-García, Juan; Molina-García-Pardo, José-María; Liénard, Martine; Gaillot, Davy P. (Institute of Electrical and Electronics Engineers, 2019-12)

[EN] In this letter, the dependence of the specular multipath components (SMC) and dense multipath components (DMC) to the interuser spatial correlation and sum-rate capacity of a massive multiuser multiple-input--multiple-output ...
Single-Layer Sequential Rotation Network in Gap Waveguide for a Wideband Low-Profile Circularly Polarized Array Antenna

Ferrando-Rocher, Miguel; Herranz Herruzo, José Ignacio; Valero-Nogueira, Alejandro; Bernardo-Clemente, Bernardo (Institute of Electrical and Electronics Engineers, 2022)

[EN] A low-profile circularly-polarized sequential rotation fed 4 x 4 array antenna working in the Ka-band from 27.5 GHz to 31 GHz is presented. The particularity of the antenna lies in its single-layer sequential rotation ...
Waterfront Depth Analysis in Hardened Concrete by Means of the Nondestructive Ground-Penetrating Radar Technique

Rodríguez-Abad, Isabel; Klysz, Gilles; Martínez-Sala, Rosa M.; Balayssac, Jean Paul; Mene-Aparicio, Jesus (Institute of Electrical and Electronics Engineers (IEEE), 2016-01-29)

Durability of concrete structures depends mainly on the ease whereby water and any aggressive chemical agents dissolved therein can penetrate. Therefore, measuring water penetrability in concrete structures is crucial ...
Wideband Dual-Polarized Cross-Shaped Vivaldi Antenna

Sonkki, Marko; Sánchez Escuderos, Daniel; Hovinen, V.; Salonen, E.T.; Ferrando Bataller, Miguel (Institute of Electrical and Electronics Engineers (IEEE), 2015-06)

This communication presents a wideband, dual-polarized Vivaldi antenna or tapered slot antenna with over a decade (10.7:1) of bandwidth. The dual-polarized antenna structure is achieved by inserting two orthogonal Vivaldi ...
Wireless Channel Analysis Between 25 and 40 GHz in an Intra-Wagon Environment for 5G Using a Ray-Tracing Tool

Pascual García, Juan; Rubio Arjona, Lorenzo; Rodrigo Peñarrocha, Vicent Miquel; Juan-Llácer, Leandro; Molina-García-Pardo, José María; Sanchis-Borrás, Concepción; Reig, Juan (Institute of Electrical and Electronics Engineers, 2022-12)

[EN] Metro and railway systems are one of the most used transportation systems for people in almost all countries. Nevertheless, the access to high throughput wireless services is still very limited inside the wagons (cars). ...
Wireless Channel Characterization From 2 to 28 GHz in an Outdoor Parking Lot

Molina-García-Pardo, José María; Rubio Arjona, Lorenzo; Martínez-Inglés, María Teresa; Egea-Lopez, Esteban; Mateo-Aroca, Antonio; Rodrigo Peñarrocha, Vicent Miquel; Reig, Juan (Institute of Electrical and Electronics Engineers, 2024-05)

[EN] This letter presents wideband measurements and simulations ranging from 2 to 28 GHz conducted in a parking lot, with and without cars. The measurements have been carried out considering a transmitter placed in an ...