A5101931030- Antenna Design and Analysis
- Antenna Design and Optimization
- Microwave Engineering and Waveguides
- Advanced Antenna and Metasurface Technologies
- Surface Roughness and Optical Measurements
- Adhesion, Friction, and Surface Interactions
- Solid-state spectroscopy and crystallography
- Advancements in Photolithography Techniques
- Phase-change materials and chalcogenides
- Advanced Numerical Analysis Techniques
- Microfluidic and Bio-sensing Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Analytical Chemistry and Sensors
- Tribology and Lubrication Engineering
- Photonic and Optical Devices
- Sparse and Compressive Sensing Techniques
- Lubricants and Their Additives
- Semiconductor materials and devices
- Photoacoustic and Ultrasonic Imaging
- Metal Alloys Wear and Properties
- Crystal Structures and Properties
- Numerical methods in inverse problems
- Integrated Circuits and Semiconductor Failure Analysis
- Advanced Surface Polishing Techniques
- Spectral Theory in Mathematical Physics
Ingegneria dei Sistemi (Italy)
2023
Politecnico di Milano
2013-2022
University of Pisa
2009-2018
AC2T Research (Austria)
2008-2018
Consorzio Nazionale Interuniversitario per le Telecomunicazioni
2016-2018
Istituto di Scienza e Tecnologie dell'Informazione "Alessandro Faedo"
2014-2017
University of Parma
1973-1998
Istituto Nazionale per la Fisica della Materia
1980-1982
A multi-objective evolutionary algorithm that explicitly introduces the management of a single or multiple constraints on solutions an electromagnetic problem is presented in this paper. The proposed strategy based upon modified genetic which evaluates strength solution by considering both match to desired performance (objectives) as well satisfaction specific requirements imposed design (constraints). key issue represented adaptive and its influence selective pressure algorithm. procedure...
A robust technique for reading moving chipless tags exploiting the inverse synthetic aperture radar data processing is presented. The procedure takes advantage from known tag movement to improve detection capability by integrating several received signals. implicit of proposed scheme that background measurement, collected in absence tag, can be easily performed before passes front reader antenna. allows a significant increase interrogation distance and, more importantly, it greatly improves...
This work addresses the emerging need for investigating micro- and nano-devices by performing Impedance Spectroscopy with high-sensitivity yet at high bandwidth. To this goal a new circuital architecture has been implemented that overcomes limitations of classic transimpedance topology noise maximum operating frequency trade-off as well input capacitance stability concerns. Thanks to two channel modulation/amplification/demodulation structure embedded into feedback loop, loop gain all...
The surface quality of high gloss polished steel sheets with respect to ‘orange peel’ is studied. This motivated by the fact that workpieces are ranked solely on visual appearance finished surfaces according observed degree orange peel. Here, quantify peel, topographies industrial samples acquired means phase shifting interferometry, from which various roughness parameters calculated. These related qualitative aspects using Spearman's rank correlation coefficient. Two were identified as...
A phased array architecture based on uniformly overlapped subarrays allows to obtain a radiation pattern with low sidelobes for an angle-limited scan. The improvements provided in terms of sidelobe reduction by resorting randomly are analyzed, and the performance this novel configuration is compared those achieved other subarray arrangements. proposed structure theoretically results also assessed full-wave simulations order include effect mutual coupling among radiating elements.
A 100-MHz-bandwidth multichannel instrument-on-chip for noninvasive light monitoring in photonic circuits by means of the impedance sensing waveguide (WG) conductance variation is presented. The low-noise front-end allows accessing WG with very high sensitivity and tracking its upon changes photon flux a resolution better than 10 pS, i.e., down to -30 dBm optical intensity. Each electronic chain features capacitive-feedback amplifier bias-handling network based on subthreshold transistors,...
Fabry-Perot (FP)/leaky-wave antennas fed with multiple sources are analyzed and modeled. A transmission line (TL) approach for a rapid efficient analysis of such antenna configuration is developed. The method based on the superposition traveling leaky waves excited by each applied sources. field distribution inside cavity derived using longitudinal TL model which takes into account interference radiation pattern obtained fast Fourier transformation distribution. propagation constants waves,...
An open-source database containing metrology data for X-ray mirrors is presented. It makes available (mirror heights and slopes profiles) that can be used with simulation tools calculating the effects of optical surface errors in performances an instrument, such as a synchrotron beamline. A typical case degradation intensity profile at focal position beamline due to mirror errors. This (DABAM) aims provide users real mirrors. The included are described this paper, details how parameters...
A rigorous and efficient approach for the design of radomes that are closely spaced to radiating aperture a phased array is proposed. The method relies on generalized scattering matrix (GSM) description both source radome based Floquet modal expansion. GSM unit cell calculated only once. radome, which also frequently addressed as wide-angle impedance matching, optimized simply by iterating with fast solver periodic moments. effect antenna taken into account through connection matrices....
Measurements of the ordinary refractive index GaSe single crystals at various temperatures between 300 K and 75 in 0.5-2.5-eV energy range, obtained through an interference technique, are reported. On basis these data dispersion thermal coefficient has been deduced by using a very simple computational approach. The experimental results were discussed framework oscillator model optical constants.
A fast optimization scheme for the tuning of an antenna with a distributed matching network is proposed. The performances loaded radiator are rapidly evaluated starting from scattering matrix unloaded antenna. presented procedure also able to evaluate power dissipated on resistive elements and hence overall efficiency This time-saving approach particularly suitable be exploited in process as proved test case wideband prototype designed has been manufactured measured validate strategy.
Abstract The three‐dimensional mechanical character of GaSe single crystals makes it very difficult to study the optical properties along c ‐axis. A technique is developed based on analysis interference pattern as a function wavelength. Using envelope maxima or minima possible normalize data in respect intensity incident light so have an absolute measurement. fit experimental normalized gives index refraction n and extinction coefficient k with error order 1...