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Pomezia, Italy

Euphrasie S.,University of Franche Comte | Zhang S.,University of Franche Comte | Butet R.,SATIMO | Vairac P.,University of Franche Comte
Applied Physics Letters | Year: 2013

We propose a sensor system to measure the specific absorption rate at radio frequencies, using a matrix of electro-optic (EO) sensors. The aim is to replace the conventional metallic antenna scanned by a robot inside an open phantom with a matrix of small probes positioned inside a closed phantom. Results are presented for a dual sensor, showing the feasibility of the proposed approach. The two EO probes interrogated by the same laser are shown to detect electric fields smaller than 1 V/m. Measurements are conducted both with the probes in air and inside the phantom liquid. © 2013 American Institute of Physics. Source

Araque Quijano J.L.,National University of Colombia | Foged L.J.,SATIMO | Vecchi G.,Polytechnic University of Turin
SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings | Year: 2013

We present a numerical technique to compute the field due to antennas above an infinite ground plane starting from measurements with finite ground planes. The technique works under the assumption of weak coupling between the antenna and the finite plane discontinuities but is otherwise general since it is based on rigorous field symmetry relations. Application of the technique requires a two-step process starting with the computation of surface equivalent sources which reproduce the actual antenna fields (with finite ground plane) in all points of space outside their support. These equivalent sources are then employed to compute the fields with infinite ground plane. Numerical results confirm the effectiveness of the technique. © 2013 IEEE. Source

Vandenbosch G.A.E.,Catholic University of Leuven | Mioc F.,SATIMO
Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012 | Year: 2012

The convened session at EuCAP last year of the EuRAAP Working Group on software should be considered a starting-up event. It was the first time that the WG established a really close cooperation with software vendors in a mutual effort. The goal was to discuss the future of computational electromagnetics. This year, the immediate goal is to organize a session with time reserved for discussion between the antenna and propagation software and design research community and the software vendors. The idea is to figure out whether it would be possible to establish a kind of common road map, in mutual consent, for the further development of numerical techniques and software tools. The goal is explicitly that the input for this road map is coming from the antenna and propagation software and designer community, which is the community that should drive the development, since they are the final "customers" of the software. © 2012 IEEE. Source

Mioc F.,SATIMO | Frandsen P.E.,TICRA | Sabbadini M.,European Space Agency
Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012 | Year: 2012

This paper presents an overview of the last developments in the Electromagnetic Data Exchange (EDX). The EDX is a core activity of the EAML team in collaboration with the Working Group on Software of the European Association on Antennas and Propagation (EurAAP). Recent developments are discussed together with the formulation of the Field Data Dictionary in the DDL language. An application example relevant to the integration of measurements and simulation is reported. © 2012 IEEE. Source

Foged L.J.,SATIMO | Scialacqua L.,SATIMO | Saccardi F.,SATIMO | Mioc F.,SATIMO | And 2 more authors.
2013 7th European Conference on Antennas and Propagation, EuCAP 2013 | Year: 2013

The inverse source or equivalent current/source method (EQC), [1]-[7], based on discretization of integral equations has attracted considerable attention due to a host of promising applications in antenna design and diagnostics. This method offers a greater generality and flexibility since it allows reconstructing sources on arbitrary 3-D surfaces enclosing the antenna under test (AUT). Indeed the equivalent source approach is a true 3D approach as opposed to traditional methods based on plane wave expansion using hemispherical field information. This method is therefore highly suitable for diagnostics on low and medium directivity antenna and even allows the possibility to identify and isolate unwanted effects close to the antenna. In this paper the measurement diagnostics capabilities of the tool are used for detecting possible electrical and/or mechanical defects on the antennas with particular attention to array antennas measured in different measurement scan ranges. © 2013 EurAAP. Source

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