V. Litun, K. Lyulyukin, A. Vilenskiy, S. Chernyshev
{"title":"Experimental Study of a Low-profile Wideband Antenna Array Unit Cell with Integrated EBG Structure","authors":"V. Litun, K. Lyulyukin, A. Vilenskiy, S. Chernyshev","doi":"10.1109/PIERS-Spring46901.2019.9017437","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017437","url":null,"abstract":"The present paper considers the essential peculiarities of simulation and experimental procedures for a performance study of the C-band low-profile antenna array unit cell. Finite array domain decomposition analysis approach employed for numerical analysis. The good agreement was found between simulated S-parameters for the 6-rings model and measured results of the 3-rings test fragment in frequency and space domains. Simulation results validated the 3-rings fragment as a sufficiently large to provide a reliable assessment of the active reflection coefficient magnitude in the required frequency range and beam steering angular sector.","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":"129550786","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}
T. Bakhvalova, M. Belkin, V. Kovalyuk, A. I. Prokhodtcov, Gregory Goltsman, A. Sigov
{"title":"Studying Key Principles for Design and Fabrication of Silicon Photonic-based Beamforming Networks","authors":"T. Bakhvalova, M. Belkin, V. Kovalyuk, A. I. Prokhodtcov, Gregory Goltsman, A. Sigov","doi":"10.1109/PIERS-Spring46901.2019.9017646","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017646","url":null,"abstract":"In the paper, we address key principles for computer-aided design and fabrication of silicon-photonics-based optical beamforming network selecting the optimal approach by simulation and experimental results. To clarify the consideration, the study is conducted on the example of a widely used binary switchable silicon-nitride optical beamforming network based on TriPleX platform. Comparison of simulation results and experimental studies of the prototype shows that the relative error due to technological imperfections does not exceed 3%. According to the estimation, such an error introduces insignificant distortion in the radiation pattern of the referred antenna array.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"33 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":"129749566","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":"Atmospheric Retrievals in Hurricane Based on MWHTS Aboard FY-3C Satellite","authors":"Jieying He, Shengwei Zhang, Na Li","doi":"10.1109/PIERS-Spring46901.2019.9017216","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017216","url":null,"abstract":"The mesoscale numerical model WRF is used to simulate the No. 8 hurricane Matthew in 2016. With the verification to the real situation, the process of the hurricane rainstorm is well simulated by WRF in this case that it could basically show the hurricane evolution. In order to analyze the inner structure, the nadiral satellite-based observations were matched between the Microwave Humidity and Temperature Sounder (MWHTS) instrument aboard the FY-3C polar-orbiting platform to retrieve atmospheric profiles. Then use the simulation results with high spatial and temporal resolution to do diagnostic analysis on the short term heavy rainstorm caused by Matthew, with a comparison between best track and forecasting tracks using active and passive microwave observations from WRFDA model.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"15 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":"128377266","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}
M. Merenda, R. Carotenuto, D. Iero, F. D. Della Corte
{"title":"Effects of the Temperature on the Efficiency Degradation in Multi-stage RF Energy Harvesters","authors":"M. Merenda, R. Carotenuto, D. Iero, F. D. Della Corte","doi":"10.1109/PIERS-Spring46901.2019.9017392","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017392","url":null,"abstract":"The conversion efficiency of a multi-stage RF energy harvester on a printed circuit board charge-pump, based on off-the-shelf diodes and capacitors is studied, in the UHF band, as a function of temperature. The considered temperature range varies from 25°C to 85°C, highlighting that the effects of the temperature may cause a severe degradation on the harvested power, in particular at the lowers incident power regimes. Experimental measurements are presented to show that the rectifiers quality has the biggest impact of the harvester performances. Precisely, the temperature dependent rectification ratio of silicon Schottky diodes commonly used for this application can be considered as a quality factor of the converter.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"101 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":"128433429","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":"Improved Spatial Collocation and Parallax Correction Approaches for Intercalibration among Different Sensors in Thermal Infrared Band under the Framework of GSICS","authors":"Q. Guo","doi":"10.1109/PIERS-Spring46901.2019.9017677","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017677","url":null,"abstract":"Under the framework of GSICS, two modifications, improved spatial collocation with variable weighting (VW) and parallax correction (PC) approaches to enhance the calibration accuracy validation (CAV) performance are proposed. Distinguished from the uniform weighting method recommended by GSICS, the proposed VW one establishes a novel way of overlapping identification and overlapping area computation which is widely suitable for measurements from both same and different platforms. Simulations indicate that the uncertainty of VW method behaves better for the collocated targets far away from satellite's nadir with a certain geolocation error, and is superior to 0.6 K for most overlapping situations when geolocation error is less than 0.5 pixels. Besides of the uncertainty improvement, PC approach has the capability to reduce the bias of CAV by around 0.2-0.3K. The proposed VW and PC methods are recommended for GSICS utilization and will further benefit to a more comprehensive community.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"13 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":"128720609","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":"Vertically Stacked Binomial-arrays of Resonant Dipoles for Mobile Wireless Communication and Scavenging Applications","authors":"T. Erinosho, S. A. Adokola","doi":"10.1109/PIERS-Spring46901.2019.9017909","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017909","url":null,"abstract":"The system under investigation consists of three-and four-element binomial arrays of half-wave resonant dipoles, stacked vertically on each of three equilateral triangular cross-sections of a ground plane, and employed in mobile cellular communications base stations. In practical terms, the dipoles being center-fed and carrying equal in-phase currents are arranged with a specified spacing of dipoles from the ground plane so as to generate the overlapping patterns required. Using Pascal's triangle concepts, it is shown that when the normalized excitation coefficients for the three-and four-element binomial arrays are 1, 2, 1 and 1, 3, 3, 1, respectively, the corresponding respective array factors emerge as: $(AF)_{3}=2cos^{2}(0.5kd_{e}costheta)$ and $(AF)_{4}=4cos^{3}(0.5kd_{e}costheta)$. With a resonant half-wave dipole as candidate for investigation, results of several computations of the array factor and radiated electric field patterns, displayed in graphical formats, reveal that the sidelobes occurrence associated with binomial array when the inter-element separation is greater than $0.5lambda$ can be reduced if the length of each radiating elements of the array is increased to $1lambda$. Because this choice of element length attracts increased directivity of the array, it is particularly suitable for use with RF energy scavenging applications. It seems desirable to perhaps add that this investigation derives impetus, as suggested in the presentation, from the prevalence of the ubiquitous contemporary surroundings for cellular communications mobile phones signals whose propagation in and out of constructed dwellings, provide preponderance reserve for energy scavenging possibilities.","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":"128804336","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}
D. Zyatkov, V. Balashov, V. Yurchenko, V. Cherepanov, Z. Kochnev
{"title":"Capacitive Sensing Element with a Magnetic Fluid for Detecting of Change of Magnetic Field","authors":"D. Zyatkov, V. Balashov, V. Yurchenko, V. Cherepanov, Z. Kochnev","doi":"10.1109/PIERS-Spring46901.2019.9017536","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017536","url":null,"abstract":"The article presents the results of an experimental study of capacitive magnetic field sensors with magnetic fluid. The sensor is based on a change in the capacitance of a magnetic fluid capacitor at influence of magnetic field. The effect of an external magnetic field on a sensitive capacitive element with a magnetic fluid at different concentrations of a magnetic particle is studied. Change of capacity of the lamellar condenser from concentration of magnetic powder in polymethylphenylsiloxane (PFMS-4) liquid is shown.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"66 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":"128248632","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":"Improved Nano-optical Traps for Single-particle Sensing Applications","authors":"G. Işıklar, M. Algun, Ö. Ergül","doi":"10.1109/PIERS-Spring46901.2019.9017705","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017705","url":null,"abstract":"We present numerical design and simulations of nano-optical traps for single-particle sensing applications. While commonly used nano-holes with circular shapes are suitable for physically trapping nanoparticles to be detected and identified, they generate relatively weak signals in the far zone, especially when nanoparticles are small. We show that optical sensitivity of nano-holes can be enhanced significantly by using well-designed tip geometries such that metallic and dielectric nanoparticles can be detected and identified based on far-zone scattering data. Numerical simulations are performed to test the designed nano-holes and demonstrate their excellent performances in various scenarios.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"124 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":"128604076","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 of Small Sized SFCW Radar for Landmine Detection","authors":"D. Šipoš, D. Gleich","doi":"10.1109/PIERS-Spring46901.2019.9017810","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017810","url":null,"abstract":"Landmines today still represent an active issue in war-field zones where they hurt or kill thousands of people around the globe. Special challenge presenting in soil buried plastic landmines, which are because of the material harder to detect. For this task many promising result have been achieved with use of millimeter wave frequency radars. This paper presents design of a small sized and low cost ground penetrating radar (GPR) with use of standard integrated circuits (IC) components. The used frequency has to be low as possible for the ability of the signal to penetrate through above ground vegetable as also the soil it self. For this purpose a homo dyne structured stepped frequency continuous wave (SFCW) radar has been designed and developed. Used was the frequency from 700 MHz to 2.7 GHz and is limited by the IC components. With this bandwidth a resolution of 15 cm is achieved. For greater penetration depths the transmitted signal is at the end amplified up to 30 dBm. Because of the high bandwidth in this frequency band and desired narrow beam width, a custom TEM Horn antenna had to be developed. With the weight of only few hundred grams and a small size, the system could be also mounted on a drone and scan infected areas. The radar performance has been tested on a indoor polygon with different scenarios of landmines, positioned above and below the ground surface. The main focus has been dedicated to plastic landmines. The signal which is reflected from a plastic landmine is mainly because of the explosive inside, therefore for test purposes material with similar dielectric performances was used. Experimental results have shown that with the designed SFCW radar, landmines above as also below ground surface can be detected.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"163 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":"124558493","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":"Measurement and Research of Liquid Transmission Spectrum Based on Continuous-wave Terahertz Spectroscopy","authors":"Sujie Guo, Deyin Kong, C. Ruan, Yan Zhang","doi":"10.1109/PIERS-Spring46901.2019.9017588","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017588","url":null,"abstract":"Terahertz frequency-domain spectroscopy (THZ-TDS) and terahertz time-domain spectroscopy (THz-FDS) are two important methods for the material feature detection in terahertz band. In our research, the terahertz frequency-domain spectroscopy based on the continuous-wave and coherent detection is used to acquire the terahertz spectrum of liquid samples in a customized rectangle cell. The transfer matrix method is used to remove the oscillation generated by the Fabry-Pérot interferometer caused by cell wall, thereby dielectric constants of liquids can be extracted successfully. With the Hilbert transformation to get the amplitude and phase, the high frequency resolution of ~ 14 MHz can be achieved. Then the refractive index of the liquid sample cyclohexane is obtained with the frequency range 0.1—1.7 THz. The results show that our terahertz frequency-domain spectroscopy has high potential for measurement and analysis in the terahertz band.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"102 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":"124691189","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}