Indoor 3D Full Polarimetric Bistatic Spherical Facility for Electromagnetic Tests

Escot, D.; Poyetos, D; Aguilar, J. A.; Montiel, Ignacio; Gónzalez, Iván; Adana, Francisco Sáez de

doi:10.1109/map.2010.5638248

Cited by 17 publications

(6 citation statements)

References 8 publications

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“…Specifically, this measurement technique is one of the methods used in the CAEM-Lab from INTA, where there are two types of facilities, (POLYBENCH [ 8 ] and BIANCHA [ 41 ]), capable of performing measurements in this type of method and from which different algorithms for extracting EM permittivity and permeability values developed at INTA can be applied.…”

Section: Methodsmentioning

confidence: 99%

Novel Electromagnetic Characterization Methods for New Materials and Structures in Aerospace Platforms

et al. 2022

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The tendency over the last decades in the aerospace industry is to substitute classic metallic materials with new composite materials such as carbon fiber composites (CFC), fiber glass, etc., as well as adding electronic devices to ensure the safety and proper platform operation. Due to this, to protect the aircraft against the Electromagnetic Environmental Effects (E3), it is mandatory to develop accurate electromagnetic (EM) characterization measurement systems to analyze the behavior of new materials and electronic components. In this article, several measurement methods are described to assess the EM behavior of the samples under test: microstrip transmission line for a surface current analysis, free space to obtain intrinsic features of the materials and shielding effectiveness (SE) approaches to figure out how well they isolate from EM fields. The results presented in this work show how the different facilities from the National Institute of Aerospace Technology (INTA) are suitable for such purposes, being capable of measuring a wide variety of materials, depending on the type of test to be carried out.

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Section: Methodsmentioning

confidence: 99%

Novel Electromagnetic Characterization Methods for New Materials and Structures in Aerospace Platforms

et al. 2022

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“…INTA owns an anechoic chamber facility (BIANCHA) suitable for free-space measurements [ 15 ]. BIANCHA consists of a dual-axis azimuth turntable and two antenna probes situated in two elevated scanning arms, which establish a bistatic, spherical field scanner.…”

Section: Methodsmentioning

confidence: 99%

Comparison of Metal-Backed Free-Space and Open-Ended Coaxial Probe Techniques for the Dielectric Characterization of Aeronautical Composites

López-Rodríguez

Escot-Bocanegra

Poyatos-Martínez

et al. 2016

Sensors

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The trend in the last few decades is that current unmanned aerial vehicles are completely made of composite materials rather than metallic, such as carbon-fiber or fiberglass composites. From the electromagnetic point of view, this fact forces engineers and scientists to assess how these materials may affect their radar response or their electronics in terms of electromagnetic compatibility. In order to evaluate this, electromagnetic characterization of different composite materials has become a need. Several techniques exist to perform this characterization, all of them based on the utilization of different sensors for measuring different parameters. In this paper, an implementation of the metal-backed free-space technique, based on the employment of antenna probes, is utilized for the characterization of composite materials that belong to an actual drone. Their extracted properties are compared with those given by a commercial solution, an open-ended coaxial probe (OECP). The discrepancies found between both techniques along with a further evaluation of the methodologies, including measurements with a split-cavity resonator, conclude that the implemented free-space technique provides more reliable results for this kind of composites than the OECP technique.

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“…As the RAM will be used under FS conditions, the EM characterisation that comes closest to its actual usage is the one that can be performed in an FS range such as an anechoic chamber of appropriate dimensions. In this paper, the facility called BIANCHA belonging to the National Institute for Aerospace Technology (INTA), Spain was used [31] (see Fig. 5).…”

Section: Fs Measurementmentioning

confidence: 99%

FS electromagnetic characterisation of a flexible and scalable X‐band RAM

Aguirre

Pedro

Gallardo³

et al. 2018

IET Microwaves, Antennas & Propagation

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Along the years, RADAR absorbing materials (RAM's) have been widely introduced in aeronautic applications and platforms. However, this kind of materials presents three main problems for certain applications when they are intended to be used in real operations. First, they must be scalable from a laboratory sample to actual size, at a reasonable cost. Second, they must be able to work without metal backing for applications in non‐metallic vehicles or other objects which surface might not be flat. Indeed, they should also be flexible and surface adaptable. Finally, their absorbing properties against electromagnetic fields should be preferably characterised under real conditions, that is, in free space (FS), in order to design and fabricate an appropriate material for the intended application. In this study, a self‐developed, low‐cost, bilayer, X‐band RAM, composed of a lower layer of polyaniline silicon rubber and a top layer of silicon rubber with graphite was characterised in a bistatic anechoic chamber called BIANCHA, and the results are presented, analysed and compared with software simulation and with the typical single polarisation waveguide measurement method, showing the adequacy of FS measurements for the development of this type of RAM.

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Indoor 3D Full Polarimetric Bistatic Spherical Facility for Electromagnetic Tests

Cited by 17 publications

References 8 publications

Novel Electromagnetic Characterization Methods for New Materials and Structures in Aerospace Platforms

Novel Electromagnetic Characterization Methods for New Materials and Structures in Aerospace Platforms

Comparison of Metal-Backed Free-Space and Open-Ended Coaxial Probe Techniques for the Dielectric Characterization of Aeronautical Composites

FS electromagnetic characterisation of a flexible and scalable X‐band RAM

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