2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)最新文献_第2页

Design of Arm Asymmetry Structure Based on Metamaterial for THz Sensor 基于超材料的太赫兹传感器臂不对称结构设计

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017215

Kanglong Chen, C. Ruan, Sujie Guo

{"title":"Design of Arm Asymmetry Structure Based on Metamaterial for THz Sensor","authors":"Kanglong Chen, C. Ruan, Sujie Guo","doi":"10.1109/PIERS-Spring46901.2019.9017215","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017215","url":null,"abstract":"Metamaterials which can induce Fano resonance have a promising application. Thanks to the Fano resonance, a window will emerge in the transmission spectral of resonator. Both radiative damping and non-radiative damping exist in the window. Non-radiative damping is very easy to be interfered, a little change in the background can result in big change of the window, so it is promising for sensor application. Here, an Arm asymmetric metamaterial has been proposed. In X-axis direction the arm is asymmetry, the Fano resonance can be tuned by changing the asymmetric factor $S$. The sum of $S_{11}^{2}+S_{21}^{2}=0.239$ when $S=5mu mathrm{m}$, energy have been loss since non-radiative damping, so the sensor will be sensitive. And when $Sgeq 12mu mathrm{m}$, a length of the spectral of window is above −3 dB. So, the resonator can be used as switch. A column of biased diodes has been proposed to add in the metamaterial. Changing the electric potential difference between biased diode, on and off of biased diodes can be controlled. So, the switch on and off state is realized. And the length of arm is decided by how many biased diodes are needed to be ON, the passband of switch can be tuned.","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":"125124415","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}

引用次数: 1

A Wireless Charging Station for Multipurpose Electronic Systems 一种多用途电子系统无线充电站

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017278

J. Pokorný, P. Marcon, J. Janousek, T. Kríz, P. Dohnal

{"title":"A Wireless Charging Station for Multipurpose Electronic Systems","authors":"J. Pokorný, P. Marcon, J. Janousek, T. Kríz, P. Dohnal","doi":"10.1109/PIERS-Spring46901.2019.9017278","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017278","url":null,"abstract":"This article discusses an experiment within wireless charging, a technology that has been available for more than a hundred years, namely, since the inception of the Tesla transformer; currently, one of the main application fields lies within small-size electronics to recharge electric vehicles (EV). Our concept of a wireless charging station (WCS) exploits the inductive power transmission (IPT) of electrical energy; the actual device principally consists of a dock and a charger. The experimental setup comprises a transmission coil operating at frequencies up to 108 kHz; a circular spiral coil on the receiving and transmitting sides; a rectifier with a step-down converter; and controllers. In terms of defining the main parameters, we compute the wireless power transfer (WPT) efficiency and simulate the magnetic field of the coils, using CST EM studio to execute the latter procedure. The behavior of the field is shown for different coil positions. As regards the functional processes, we can stress that the wireless modules communicate in the ISM band, employing GFSK modulation, and that they monitor the voltage and current in the charger, thus helping to detect improper positioning of the coils. Generally, the applied methodology and its practical embodiments may also facilitate accurate landing of unmanned aerial vehicles (UAV), substituting the landing scenario where a camera and quick response (QR) code detection are needed. Precise UAV guidance towards the station, however, requires the global position system (GPS). A minor problem emerges in relation to the energy transfer: an electromagnetic field (EMF) is generated between the coils, and this field has to be eliminated due to electromagnetic interference (EMI). Such a spurious effect may affect the guidance and information systems, possibly causing major errors in the electronics. The station is designed to recharge low voltage and low power devices, including those operating on separated extra low voltage (SELV).","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":"125842271","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}

引用次数: 2

High-Resolution Satellite Image Based Aerosol Optical Depth Retrieval Method: Validation Through EARLINET and NASA MPLNET Lidar Measurements and NASA AERONET Sunphotometer Data 基于高分辨率卫星图像的气溶胶光学深度检索方法:通过EARLINET和NASA MPLNET激光雷达测量和NASA AERONET太阳光度计数据验证

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017776

S. Lolli, G. Vivone, L. Alparone, A. Garzelli, M. Bilal, D. Cimini, J. Campbell, E. Welton, G. Pappalardo

{"title":"High-Resolution Satellite Image Based Aerosol Optical Depth Retrieval Method: Validation Through EARLINET and NASA MPLNET Lidar Measurements and NASA AERONET Sunphotometer Data","authors":"S. Lolli, G. Vivone, L. Alparone, A. Garzelli, M. Bilal, D. Cimini, J. Campbell, E. Welton, G. Pappalardo","doi":"10.1109/PIERS-Spring46901.2019.9017776","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017776","url":null,"abstract":"Natural and anthropogenic aerosol emissions play a fundamental role both modulating directly the incoming solar radiation and affecting the air quality. Likewise, their indirect effects impact cloud lifetime, atmospheric column thermodynamics and precipitation patterns. For this reason, it is of crucial importance to assess aerosol spatial and temporal variability to reduce the uncertainty in forecasting future scenarios by the climatological models. In this study we developed an image based robust methodology that permits to retrieve the atmospheric path radiance and then the Aerosol Optical Depth (AOD) using the different bands satellite high-resolution spatial images, e.g., Landsat, Sentinel, QuickBird and Ikonos, and a radiative transfer model. The validity and the limits of the proposed methodology are investigated through ground based lidar and sunphotometer observations obtained from the European Aerosol Lidar Network (EARLINET), the NASA MicroPulse Lidar Network (MPLNET) and the NASA AERONET network respectively.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"20 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":"126097012","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}

引用次数: 2

A Times-4 Frequency Multiplier from K- to W-band 从K到w波段的倍4倍倍频乘法器

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017496

L. Pace, A. Salvucci, S. Fenu, W. Ciccognani, P. Longhi, S. Colangeli, E. Limiti, P. Frtjlink, M. Renvoise

引用次数: 1

Study on the Enhancement of Diamond Fluorescence Characteristics by Multi-layer Anti-reflection Coating 多层增透涂层增强金刚石荧光特性的研究

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017389

Xuejiao Li, Libo Zhao, Zhikang Li, Guoxi Luo, Mingzhi Yu, Yintao Ma, Lei Li, Xudong Fang, Zhuangde Jiang

{"title":"Study on the Enhancement of Diamond Fluorescence Characteristics by Multi-layer Anti-reflection Coating","authors":"Xuejiao Li, Libo Zhao, Zhikang Li, Guoxi Luo, Mingzhi Yu, Yintao Ma, Lei Li, Xudong Fang, Zhuangde Jiang","doi":"10.1109/PIERS-Spring46901.2019.9017389","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017389","url":null,"abstract":"Quantum sensing has become a rapidly growing research within the area of sensor, which can break through the limits of traditional physical sensing and make sensing accuracy to the nanometer scale. Meanwhile nitrogen-vacancy (NV) center in bulk diamond as a sensor has varieties of applications because of its excellent characteristics. However, there are large optical reflection and low fluorescence collection efficiency at the diamond-air interface because of the large refractive index gap between diamond and air, thereby reducing the sensing sensitivity. In this work, we report a multi-layer anti-reflection coating and fabrication on the surface of diamond with genetic algorithm to solve optimization value of the average reflectance $R_{ave}$ in the wavelength range of 600–800 nm. And we fabricate SiO2-Si3N4 double-layer anti-reflection coating on diamond substrate by plasma chemical vapor deposition. Experiment results show that with an anti-reflection coating, the fluorescence collection efficiency is significantly improved, and the average transmittance in the wavelength range of 600–800 nm is increased from 82.8% to 96.7%.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"40 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":"123291995","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}

引用次数: 0

Design of Irregularly Shaped Lens Antennas including Supershaped Feed 包含超形馈源的异形透镜天线设计

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017900

L. Mescia, C. Lamacchia, M. A. Chiapperino, P. Bia, J. Gielis, D. Carateelli

引用次数: 0

New Beamwidth Formulas for 1-D Leaky-wave Antennas: A Review 一维漏波天线波束宽度新公式研究进展

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017418

W. Fuscaldo, A. Galli, D. Jackson

引用次数: 0

Measuring the Orbital Angular Momentum of Asymmetric Light Beams by Two Cylindrical Lenses 用双圆柱透镜测量非对称光束的轨道角动量

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017777

V. Kotlyar, A. Kovalev, A. Porfirev

引用次数: 0

Design Analysis of Omnidirectional Single Reflector Antennas Synthesized for a Cosecant Squared Coverage in Elevation Plane 高程平面上余割平方覆盖的全向单反射面天线设计分析

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017885

I. Marcansola, L. R. G. da Silva, R. Penchel, D. P. Santos

引用次数: 0

Effect of Internal Pore Sizes of the Silica Gel on the Dielectric Permittivity in the Frequency Range from 100 Hz to 8 GHz 在100hz ~ 8ghz频率范围内硅胶内部孔径对介电常数的影响

2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) Pub Date : 2019-06-01 DOI: 10.1109/PIERS-Spring46901.2019.9017220

E. Kroshka, P. Bobrov

{"title":"Effect of Internal Pore Sizes of the Silica Gel on the Dielectric Permittivity in the Frequency Range from 100 Hz to 8 GHz","authors":"E. Kroshka, P. Bobrov","doi":"10.1109/PIERS-Spring46901.2019.9017220","DOIUrl":"https://doi.org/10.1109/PIERS-Spring46901.2019.9017220","url":null,"abstract":"In the frequency range from 100 Hz to 8 GHz, three samples of silica gel powder with internal pores sizes of 4, 6 and 9 nm and different contents of adsorbed water and one sample of sandy globules with grain sizes close to silica gel sizes were studied. The powders were moistened with distilled water. It is shown that at frequencies above 10 MHz, the differences in the complex relative dielectric permittivity (CRP) of silica gels with different pore sizes with the same moisture are negligible. In two samples of silica gel with similar values of the maximum amount of adsorbed water the CRP depends mainly on the size of internal pores. The CRP values of the third sample differ from the CRP of other samples due to the higher content of adsorbed water. The relaxation processes observed in the studied frequency range exist only in the presence of adsorbed water. The occurrence of films of liquid water on the surface of the grains leads to the appearance of an intensive relaxation process with a low relaxation frequency that is outside the bounds the studied frequency range.","PeriodicalId":446190,"journal":{"name":"2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring)","volume":"90 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":"122118953","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}

引用次数: 0