Paolo D'Atanasio

An Antipodal Vivaldi Antenna for a Drone-mounted Ground Probing Radar

Stefano Pisa, Federico Pastori, Renato Cicchetti, Emanuele Piuzzi et autres

An antenna operating between 300 MHz and 700 MHz, designed to be used on a ground penetrating radar installed on an Unmanned Aerial Vehicle (UAV) for the exploration and characterization of the buried ice deposits on Mars, is presented.To this end, a …

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Design and Implementation of an Accessible 3D Bioprinter: Benchmarking the Performance of a Home-Made Bioprinter against a Professional Bioprinter

Paolo D'Atanasio, Noemi Fiaschini, Antonio Rinaldi, Alessandro Zambotti et autres

The tremendous application potential of 3D bioprinting in the biomedical field is witnessed by the ever-increasing interest in this technology over the past few years. In particular, the possibility of obtaining 3D cellular models that mimic tissues with precision and reproducibility represents …

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Through-the-Wall Imaging by means of a Hybrid Inverse-Scattering Procedure

Andrea Randazzo, Cristina Ponti, Valentina Schenone, Alessandro Fedeli et autres

In this work, an inverse-scattering technique for through-the-wall imaging is presented and validated against experimental data. The inverse-scattering scheme is developed in variable-exponent Lebesgue spaces, where a delay-and-sum beamforming approach is preliminary applied to build the exponent function. Measurements are collected as …

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A Multiple Input Single Output Radar for Through-the-Wall Radar Imaging

Stefano Pisa, Renato Cicchetti, Emanuele Piuzzi, Orlandino Testa et autres

A step frequency Radar for through-the-wall radar imaging applications, based on a vector network analyzer (VNA) and on a Multiple Input Single Output (MISO) architecture, is presented. The system was calibrated by removing the errors due to the connection cables, to the …

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A Through-the-Wall Imaging Approach Based on a TSVD/Variable-Exponent Lebesgue-Space Method

Andrea Randazzo, Cristina Ponti, Alessandro Fedeli, Claudio Estatico et autres

A hybrid inversion scheme for through-the-wall imaging is proposed in this paper. The approach is based on a linearized model of the inverse-scattering problem, employing the Green’s function developed for a layered background. The reconstruction is obtained by means of a Landweber-like …

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Numerical and Experimental Comparison Among a New Hybrid FT-Music Technique and Existing Algorithms for Through-the-Wall Radar Imaging

Renato Cicchetti, Stefano Pisa, Emanuele Piuzzi, Erika Pittella et autres

A fast low-cost through-the-wall radar imaging (TWRI) system, based on a vector network analyzer (VNA), a couple of switches and an array of Vivaldi antennas, has been designed, realized, and tested. To solve the TWRI inversion problem, an original theoretical modeling for …

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A Two-Step Inverse-Scattering Technique in Variable-Exponent Lebesgue Spaces for Through-the-Wall Microwave Imaging: Experimental Results

Andrea Randazzo, Cristina Ponti, Alessandro Fedeli, Claudio Estatico et autres

A novel two-step inverse-scattering technique is proposed for through-the-wall microwave imaging. The approach is based on a regularization scheme developed in the framework of variable-exponent Lebesgue spaces, which enhances the quality of the reconstruction by properly tuning the exponent function that defines …

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A Wideband Series Fed Patch Array with Side Lobe Level Control

Giulia Sacco, Paolo D'Atanasio, Stefano Pisa

In this paper a novel series fed patch array for healthcare radar monitoring applications has been proposed. The antenna is composed of six patches and works in the 5.8GHz Industrial, Scientific and Medical (ISM) band. The shape of the single patch has …

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A Microwave Imaging System for the Detection of Targets Hidden behind Dielectric Walls

Renato Cicchetti, Valentina Cicchetti, Sandra Costanzo, Paolo D'Atanasio et autres

In this work, a prototype of microwave imaging system for through-the-wall monitoring is presented. The system can operate remotely, as well as by using antennas directly in contact with the wall. For the remote modality, ad-hoc wide-band antennas have been designed and …

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A Wideband and Low-Sidelobe Series-Fed Patch Array at 5.8 GHz for Radar Applications

Giulia Sacco, Paolo D'Atanasio, Stefano Pisa

In this letter, a novel series-fed patch array working in the 5.8 GHz industrial, scientific, and medical (ISM) band for healthcare radar monitoring applications has been proposed. The single patch has been opportunely shaped to solve two critical problems of this antenna …

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Sensitivity improvement by optically-absorbent plastics of electro-optical probes for high-intensity electromagnetic-fields generated by laser-matter interaction

F. Consoli, Pier Luigi Andreoli, F. Bonfigli, M. Cipriani et autres

The characterization of intense radiofrequency-microwave electromagnetic pulses\break (EMPs) generated by the interaction of powerful lasers with matter is a very hot topic of research, for both inertial-confinement-fusion and laser-plasma acceleration facilities spread around the world. These fields are often detrimental for the …

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Complex permittivity measurements for moisture and salinity characterization of building materials

Paolo D'Atanasio, Alessandro Zambotti, Stefano Pisa, Erika Pittella et autres