2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)最新文献

{"title":"Experimental X and Gamma Ray Measurement of Nanoparticles and Nanolayers","authors":"P. Fiala, P. Londák, K. Bartusek","doi":"10.1109/PIERS-Spring46901.2019.9017311","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017311","url":null,"abstract":"The paper presents models and experimental measurements applicable within simulation of tuned multilayered periodic structures, especially in the gamma region of the electromagnetic spectrum. Using a sample bilayer of inorganic materials designed as a resonant structure, the authors demonstrate the ability of such structures to absorb or let through an electromagnetic wave having a specific wavelength.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123503714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time-domain Coupled Full Maxwell- and Drift-Diffusion-Solver for Simulating Scanning Microwave Microscopy of Semiconductors","authors":"A. Gungor, J. Smajic, F. Moro, J. Leuthold","doi":"10.1109/PIERS-Spring46901.2019.9017879","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017879","url":null,"abstract":"This paper presents a transient electromagnetic Maxwell solver (MS), a transient semiconductor Poisson-Drift-Diffusion (PDD) solver, and their numerical coupling. The proposed numerical solution schemes are based on Finite Element Method (FEM). Due to the solvers complexity it is important to carefully examine the obtained initial results. Therefore, a simple 1D pnjunction diode illuminated by an external electromagnetic plane wave is considered, as the stationary solutions of this structure such as the depletion width, built-in voltage, and carrier concentration distribution can be analytically obtained. The presented initially obtained transient results converge well to the analytic stationary solutions. The electromagnetic waves reflected from a diode with zero bias and 0.8 V bias structure reveal a small signal difference within a wide frequency range, which is an encouraging initial step towards more realistic simulations of scanning microwave microscopy structures and arrangements. The extension of the presented field formulations and numerical methods to 2D and 3D problems is straightforward.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123556975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Optical Quality of Some Passive Laser Ranged Satellites","authors":"C. Paris, G. Sindoni","doi":"10.1109/PIERS-Spring46901.2019.9017484","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017484","url":null,"abstract":"The LAser RElativity Satellite (LASER) was launched in 2012 by ASI for studying general relativity. A new mission, LARES 2, will be launched in 2019/2020 on a higher orbit and using a different design of the optical payload. LARES is a target for Satellite Laser Ranging; the passive satellite carries 92 cube corner reflectors that allow to measure with high accuracy the position of the centre of mass of the satellite with respect to the ground stations. Aside from the principal scientific goal, the measurement of the relativistic frame-dragging effect, data from LARES (and in future, from LARES 2) are used also in other research related to the study of gravity, to space geodesy, and to Earth science. The accuracy of the laser ranging depends both on the characteristics of the ground station that is tracking the satellite, on the environmental conditions of the atmosphere during the pass of the satellite, and on the design of the target. Each laser ranging station provides the data collected for a particular satellite in a specific format, called Normal Points (NP) that are released daily. By comparing the quantity of NPs produced by a satellite, and the quality of those datasets, with the NPs produced by other satellites having a similar design (passive, spherical targets), it is possible to assess the quality of the optical design of that satellite. For its main scientific mission, the data of LARES are combined with the data of LAGEOS and LAGEOS 2 satellites, orbiting on much higher orbits and considered two benchmarks for laser ranging. The data of geodetic satellites such as LARES, LAGEOS, Stella and Starlette satellite are used by the scientific community for measurements of space geodesy, for the study of the effect of global climate changes on the rotation of the Earth, and for other research related to Earth science. The availability of high-quality targets for laser ranging will improve the accuracy of the results of the research in all the above scientific fields. In this paper the quality of the satellite laser ranging data from LARES is compared with the data of the LAGEOS satellites, with the data of the Stella/Starlette satellites (on lower orbits) and with the data of AJISAI (orbiting at a similar altitude). This information will provide important information for the design of the new LARES 2 satellite.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117068638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Optimization of High-efficiency Rectenna for RF Energy Harvesting","authors":"C. Bahhar, M. Aidi, F. Mejri, T. Aguili","doi":"10.1109/PIERS-Spring46901.2019.9017564","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017564","url":null,"abstract":"Technology is advancing daily and it has impacted almost every aspect of our life today. We are showing that growth in several miniaturized communications systems that are covering different wireless services capable of achieving a wide frequency range. It is so difficult to powering permanently wireless systems and it becomes crucial to improve the energy autonomy of these objects. So, the harvesting and transport of RF energy is a topical subject with multiple challenges. The present work aims to propose a rectenna system with high efficiency. We propose an ultra-wideband antenna array allowing to harvest RF energy from different frequency bands, especially the most often exploited, such as 4G and Wi-Fi bands. The major constraint is that receiving antenna must keep reasonable dimensions. On the other hand, we proposed three topologies of rectifying circuits. A parametric study is done to follow the influence of input power and load resistance on rectenna system performance. It has been shown that the efficiency can reach 84% for a load resistance of 2.8 kΩ and an input power of 5 dBm. A prototype is made to validate the results obtained by software simulations.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124622118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Skew Detection and Ortho-rectification for System Corrected Landsat TM Images","authors":"H. Saito, Y. Miura","doi":"10.1109/PIERS-Spring46901.2019.9017569","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017569","url":null,"abstract":"We have been working on the development of geometrical correction method combining the Fourier phase only correlation method (POC) and an ortho-rectification method based on affine transform for system-corrected Landsat TM images. In this paper, in order to suppress image destruction by interpolation and improve registration accuracy, the bilinear interpolation method used for image interpolation was changed to the bicubic convolution interpolation method, and this method was applied to a system corrected Landsat TM image. As a result, it was found that the registration accuracy was improved to 9.0 m in $x$-direction and 37.3 m in $y$ direction, respectively (in UTM coordinates). And it was found that the system-corrected Landsat TM image contains small skew distortion. After correcting the skew distortion, as a result of re-applying our improved geometric correction method, the registration accuracy became 3.4m in $x$-direction and 2.5 m in $y-1$ direction, which is dramatically improved.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124624211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inverse Synthetic Aperture Radar Imaging of Space Debris Objects","authors":"A. Baskakov, V. G. Grachyov, A. Komarov, A. V. Ruban","doi":"10.1109/PIERS-Spring46901.2019.9017509","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017509","url":null,"abstract":"One of the urgent nowadays problem is to determine the characteristics of space debris (SD) in near-Earth space. Non-functioning space vehicles and their remains, collectively referred to as SD, are located both at low altitudes of up to 2000 km, orbits, and in orbits between 19,000 and 22,000 km, and in the geostationary ring above 32,000 km. Most of these objects are in high-inclination orbits, the planes of which intersect, so the average relative speed of their mutual flight is about 10 km/s. Due to the huge supply of kinetic energy, the collision of any of these objects with an operating spacecraft can damage it or even disable it. Small fractions of space debris pose the main threat to the implementation of safe space activities, since the intensity of passage through a unit of surface for small-sized (less than 10 cm) fractions is about an order of magnitude greater than for fractions more than 10 cm. Therefore, effective information support for the safety of space activities is possible only in the organization of continuous operational control of not only large, but small-sized space objects, including small fractions of space debris. In To identify the geometric shape of space debris objects, to clarify their flight orbit, the presence of rotation, an optimal algorithm for the inverse synthetic aperture radar imaging of space debris objects in the multi-position radar system is proposed. In this paper, an analysis of the trajectory signal was carried out, potential resolutions were obtained in terms of range and azimuth, an estimate of the synthesizing time was made.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128335667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Output Power of the Carbon Nanotube-based Rectenna","authors":"D. Gabrielyan, O. Safina, D. Churikov, O. Kravchenko, A. Safin, M. Bulatov","doi":"10.1109/PIERS-Spring46901.2019.9017637","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017637","url":null,"abstract":"A rectenna is a device that converts electromagnetic waves of the optical range into a direct current. An ability to absorb electromagnetic waves in combination with the small sizes makes rectennas one of the most promising material for broadband optoelectronic devices. Thus, rectennas might have a great opportunity to be applied in new systems for energy harvesting, but it has not been implemented yet because of its weak efficiency. As the latest studies have shown, the arrays based on carbon nanotubes can provide a good performance. We show the working characteristics of the rectenna formed by the array of carbon nanotubes.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128389959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sector Metalens for Sharp Focusing of Laser Light","authors":"S. Stafeev, A. Nalimov, L. O’Faolain, V. Kotlyar","doi":"10.1109/PIERS-Spring46901.2019.9017625","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017625","url":null,"abstract":"In this paper we have investigated a 16-sector metalens fabricated in a thin film of amorphous silicon and consisting from a set of subwavelength binary diffractive gratings. The metalens converts linearly polarized incident light into an azimuthally polarized optical vortex and focuses it. Experimentally using scanning near-field optical microscope it was shown that the metalens forms an elliptical focal spot with diameters smaller than the diffraction limit: FWHMx = 0.32λ and FWHMy = 0.51λ. The experimental results are close to the results of numerical simulation obtained using FDTD-method FWHMx = 0.37λ and FWHMy = 0.49λ.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129785541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MM-wave Patch Antenna with Embedded Photoconductive Elements for 1-bit Phase Shifting","authors":"E. Shepeleva, M. Makurin, A. Vilenskiy, S. Chernyshev","doi":"10.1109/PIERS-Spring46901.2019.9017621","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017621","url":null,"abstract":"The paper presents a development approach formm-wave patch antenna with 1-bit (0/180°) phase shifting. The proposed design employs a stacked patches structure, where the lower patch is excited symmetrically from an embedded single-pole double-throw switch. The switch is based on controllable photoconductive elements, where each element represents a high-resistivity silicon piece, which conductivity is modulated by a light source. Measured results demonstrate achievable (23–26) GHz −10-dB matching bandwidth and radiated field phase switching of (170-173)°. The approach can find its applications in beam steering antenna arrays and switchable monopulse antennas.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127119786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of Software Defined Radio Receivers for Antenna Measurements","authors":"R. T. Sánchez, M. S. Castañer, L. Foged","doi":"10.1109/PIERS-Spring46901.2019.9017439","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017439","url":null,"abstract":"This paper presents a time domain antenna measurement technique that aims to measure antennas in referenceless scenarios. The technique resolves measurement challenges derived from antennas where the reference signal is not accessible, for intance in EMC or active antennas. The algorithm implemented in this work is based on the the Fast Fourier Transform of the time domain signal to estimate the power spectrum and the relative phase between measurement points. In order to do that a reference antenna is used to retrieve the phase, providing a full characterization in amplitude and phase of the electric field and allowing source reconstruction. The results demonstrate the potential of this technique for new antenna measurement systems and reveal some of the limitations of the technique to be optimized, like the undesired reflections due to the interactions between the probe and the reference antenna.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127468044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}