Progress in Electromagnetics Research-Pier最新文献

HIGH EFFICIENCY MULTI-FUNCTIONAL ALL-OPTICAL LOGIC GATES BASED ON MIM PLASMONIC WAVEGUIDE STRUCTURE WITH THE KERR-TYPE NONLINEAR NANO-RING RESONATORS 基于mim等离子体波导结构和kerr型非线性纳米环谐振器的高效多功能全光逻辑门

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2021-01-01 DOI: 10.2528/PIER20082001

Yaw-Dong Wu

引用次数: 7

A FINE SCALE PARTIALLY COHERENT PATCH MODEL INCLUDING TOPOGRAPHICAL EFFECTS FOR GNSS-R DDM SIMULATIONS gnss-r DDM模拟中包含地形效应的小尺度部分相干斑块模型

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2021-01-01 DOI: 10.2528/PIER20121201

Haokui Xu, Jiyue Zhu, L. Tsang, and Seung Bum Kim

引用次数: 7

Directional Polaritonic Excitation of Circular, Huygens and Janus Dipoles in Graphene-Hexagonal Boron Nitride Heterostructures 石墨烯-六方氮化硼异质结构中圆形、惠更斯和双面偶极子的定向极化激发

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2021-01-01 DOI: 10.2528/PIER21050101

Yuyu Jiang, Xiao Lin, A.-H. Chen

{"title":"Directional Polaritonic Excitation of Circular, Huygens and Janus Dipoles in Graphene-Hexagonal Boron Nitride Heterostructures","authors":"Yuyu Jiang, Xiao Lin, A.-H. Chen","doi":"10.2528/PIER21050101","DOIUrl":"https://doi.org/10.2528/PIER21050101","url":null,"abstract":"—Polariton assisted tunable directionality provides an intrinsic ingredient to various micro/nano integrated optical systems. Their capabilities of light manipulation in mesoscopic structures allow numerous beneﬁcial properties in information processing. The realization of active near-ﬁeld directionality by tuning the input signal of system bias is more preferable than that by reconﬁguring the nanostructures. Recent progresses on the multiple hybrid dipole radiations ensure another methodology in realizing tunable directionality. Here we investigate some exotic near-ﬁeld phenomena in a 5-layer waveguide consisted of graphene and hexagonal boron nitride ( h BN) illuminated by hybrid dipole sources such as a Circular dipole, a Huygens dipole or a Janus dipole. We demonstrate divergent behaviors of hybrid polariton excitations subject to various source types and the tunability of switching between phonon-like polaritons and plasmon-like polaritons. We also show that the ﬂipping of the group velocity of excited hybrid polaritons can be used to ﬂexibly tune the transportation direction away from the dipolar sources. To be speciﬁc, when the group velocity of supported polariton ﬂips its sign, the energy ﬂow will shift to the opposite side accordingly. Such phenomena are promising in the design of reconﬁgurable and multifunctional nanophotonic devices.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"38 1","pages":"169-176"},"PeriodicalIF":6.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80919683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

ADVANCED PROGRESS ON Χ(3) NONLINEARITY IN CHIP-SCALE PHOTONIC PLATFORMS (INVITED REVIEW) 芯片级光子平台Χ(3)非线性研究进展(特邀评论)

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2021-01-01 DOI: 10.2528/PIER20122108

Zhe Kang, Chao Mei, Luqi Zhang, Zhichao Zhang, Julian Evans, Yunjun Cheng, K. Zhu, Xianting Zhang, Dongmei Huang, Yuhua Li, Jijun He, Qiang Wu, B. Yan, Kuiru Wang, Xian Zhou, Keping Long, Feng Li, Qian Li, Shaokang Wang, Jinhui Yuan, P. Wai, and Sailing He

引用次数: 8

L-BAND RADAR SCATTERING AND SOIL MOISTURE RETRIEVAL OF WHEAT, CANOLA AND PASTURE FIELDS FOR SMAP ACTIVE ALGORITHMS 基于smap主动算法的l波段雷达散射与小麦、油菜和牧场土壤水分反演

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2021-01-01 DOI: 10.2528/PIER21020702

Huanting Huang, T. Liao, Seungbum Kim, Xiaolan Xu, L. Tsang, T. Jackson, S. Yueh

{"title":"L-BAND RADAR SCATTERING AND SOIL MOISTURE RETRIEVAL OF WHEAT, CANOLA AND PASTURE FIELDS FOR SMAP ACTIVE ALGORITHMS","authors":"Huanting Huang, T. Liao, Seungbum Kim, Xiaolan Xu, L. Tsang, T. Jackson, S. Yueh","doi":"10.2528/PIER21020702","DOIUrl":"https://doi.org/10.2528/PIER21020702","url":null,"abstract":"Wheat, canola, and pasture are three of the major vegetation types studied during the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12) conducted to support NASA’s Soil Moisture Active Passive (SMAP) mission. The utilized model structure is integrated in the SMAP baseline active retrieval algorithm. Forward lookup tables (data-cubes) for VV and HH backscatters at L-band are developed for wheat and canola fields. The data-cubes have three axes: vegetation water content (VWC), root mean square (RMS) height of rough soil surface, and soil permittivity. The volume scattering and double-bounce scattering of the fields are calculated using the distorted Born approximation and the coherent reflectivity in the double-bounce scattering. The surface scattering is determined by the numerical solutions of Maxwell equations (NMM3D). The results of the datacubes are validated with airborne radar measurements collected during SMAPVEX12 for ten wheat fields, five canola fields, and three pasture fields. The results show good agreement between the datacube simulation and the airborne data. The root mean squared errors (RMSE) were 0.82 dB, 0.78 dB, and 1.62 dB for HH, and 0.97 dB, 1.30 dB, and 1.82 dB for VV of wheat, canola, and pasture fields, respectively. The data-cubes are next used to perform the time-series retrieval of the soil moisture. The RMSEs of the soil moisture retrieval are 0.043 cm3/cm3, 0.082 cm3/cm3, and 0.082 cm3/cm3 for wheat, canola, and pasture fields, respectively. The results of this paper expand the scope of the SMAP baseline radar algorithm for wheat, canola, and pastures formed and provide a quantitative validation of its performance. It will also have applications for the upcoming NISAR (NASA-ISRO SAR Mission).","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"2 1","pages":"129-152"},"PeriodicalIF":6.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74955049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

DESIGNING NANOINCLUSIONS FOR QUANTUM SENSING BASED ON ELECTROMAGNETIC SCATTERING FORMALISM (INVITED PAPER) 基于电磁散射形式化的量子传感纳米包裹体设计(特邀论文)

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2021-01-01 DOI: 10.2528/PIER20112306

C. Valagiannopoulos

引用次数: 3

AN EFFICIENT METHOD FOR DIMENSIONING MAGNETIC SHIELDING FOR AN INDUCTION ELECTRIC VEHICLE CHARGING SYSTEM 感应电动汽车充电系统磁屏蔽尺寸确定的有效方法

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2021-01-01 DOI: 10.2528/PIER21031903

Karim Kadem, F. Benyoubi, M. Bensetti, Y. Bihan, E. Labouré, M. Debbou

{"title":"AN EFFICIENT METHOD FOR DIMENSIONING MAGNETIC SHIELDING FOR AN INDUCTION ELECTRIC VEHICLE CHARGING SYSTEM","authors":"Karim Kadem, F. Benyoubi, M. Bensetti, Y. Bihan, E. Labouré, M. Debbou","doi":"10.2528/PIER21031903","DOIUrl":"https://doi.org/10.2528/PIER21031903","url":null,"abstract":"Recently, the number of electric vehicles (EVs) is increasing due to the declining of oil resources and rising of greenhouse gas emission. However, EVs have not received wide acceptance by consumers due to the limitations of the stored energy and charging problems in batteries. The dynamic or in motion charging solution becomes a suitable choice to solve the battery related issues. Many researchers and vehicle manufacturers are working to develop an efficient charging system for EVs which is based on magnetic emissions to transfer power. These emissions must be evaluated and compared to limits specified by standards (in and outside the vehicle) in order to not cause harmful effects on their environment (humans, pets, electronic devices...). This paper presents an efficient method for modeling electromagnetic emission in near field and sizing a magnetic shield for a wireless power transfer (WPT) system for EVs. A model based on elementary magnetic dipoles is developed in order to obtain the same radiation as the real WPT coil. This model is used to size a magnetic shield which will be placed under the vehicle to protect human body from magnetic emissions. The obtained shielding plate allows to respect the standards of magnetic emission by bringing a decrease of 43 dB to the levels of magnetic fields. This approach is experimentally validated.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"44 1","pages":"153-167"},"PeriodicalIF":6.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83609808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

COMPUTATIONAL INVESTIGATION OF NANOSCALE SEMICONDUCTOR DEVICES AND OPTOELECTRONIC DEVICES FROM THE ELECTROMAGNETICS AND QUANTUM PERSPECTIVES BY THE FINITE DIFFERENCE TIME DOMAIN METHOD (INVITED REVIEW) 用时域有限差分法从电磁学和量子角度研究纳米级半导体器件和光电子器件(特邀评论)

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2021-01-01 DOI: 10.2528/PIER20122201

Huali Duan, W. Fang, W. Yin, Erping Li, and Wenchao Chen

{"title":"COMPUTATIONAL INVESTIGATION OF NANOSCALE SEMICONDUCTOR DEVICES AND OPTOELECTRONIC DEVICES FROM THE ELECTROMAGNETICS AND QUANTUM PERSPECTIVES BY THE FINITE DIFFERENCE TIME DOMAIN METHOD (INVITED REVIEW)","authors":"Huali Duan, W. Fang, W. Yin, Erping Li, and Wenchao Chen","doi":"10.2528/PIER20122201","DOIUrl":"https://doi.org/10.2528/PIER20122201","url":null,"abstract":"In the simulation of high frequency nanoscale semiconductor devices in which electromagnetic (EM) fields and carrier transport are coupled, and optoelectronic devices in which strong interactions between EM fields and charged particles exist, both the Maxwell’s equations and the time-dependent Schrödinger equation (TDSE) need to be solved to capture the interactions between EM and quantum mechanics (QM). One of the numerical simulation methods for solving these equations is the finite difference time domain (FDTD) method. In this review paper, the development of FDTD method applied in EM and QM simulation is discussed. Several widely used FDTD techniques, i.e., explicit, implicit, explicit staggered-time, and Chebyshev methods, for solving the TDSE are introduced and compared. The hybrid approaches based on FDTD method, which are used to solve the PoissonTDSE and Maxwell-TDSE coupled equations for EM-QM simulation, are also discussed. Furthermore, the applications of these simulation methods for nanoscale semiconductor devices and optoelectronic devices are introduced. Finally, a conclusion is given.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"65 1","pages":"63-78"},"PeriodicalIF":6.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88955654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

WIDEBAND RCS REDUCTION OF HIGH GAIN FABRY-PEROT ANTENNA EMPLOYING A RECEIVER-TRANSMITTER METASURFACE 采用接收-发射超表面的高增益法布里-珀罗天线的宽带RCS降低

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI: 10.2528/pier20062703

P. Xie, Guangming Wang, Haipeng Li, Yawei Wang, B. Zong

{"title":"WIDEBAND RCS REDUCTION OF HIGH GAIN FABRY-PEROT ANTENNA EMPLOYING A RECEIVER-TRANSMITTER METASURFACE","authors":"P. Xie, Guangming Wang, Haipeng Li, Yawei Wang, B. Zong","doi":"10.2528/pier20062703","DOIUrl":"https://doi.org/10.2528/pier20062703","url":null,"abstract":"This paper presents a high gain Fabry-Perot antenna with radar cross section (RCS) reduction property. A receiver-transmitter metasurface is designed and used as the partially reflective surface (PRS) of the antenna to realize high gain and wideband RCS reduction. Firstly, the working principle of the unit cell is similar to the reception and radiation of two patch antennas. The unit cell is designed to present high reflectivity through tuning the impedance matching between two patches. This can ensure that the antenna obtains high gain. Then, the ground plane in the middle makes the reflection phase from different sides of the unit cell be tuned independently. Two unit cells with same reflection phase from the bottom side and 180◦ reflection phase difference from the top side are obtained through tuning the size of the transmitter patch. With the improved chessboard arrangement of these two unit cells, the incident wave can be scattered into many directions. So the metasurface presents a good RCS reduction property. More importantly, thanks to the high reflectivity of the metasurface, almost all the electromagnetic waves from the outside are reflected and rarely enter the cavity. Therefore, the antenna achieves good in band RCS reduction. The measured results of the fabricated antenna agree well with the simulated ones, which verify the correctness of the design. The antennas reaches the maximum gain of 18.2 dBi at 10 GHz. Wideband RCS reduction and good in band RCS reduction are also obtained by the antenna.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"14 1","pages":"103-115"},"PeriodicalIF":6.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74119907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

ONE-WAY TOPOLOGICAL STATES ALONG VAGUE BOUNDARIES IN SYNTHETIC FREQUENCY DIMENSIONS INCLUDING GROUP VELOCITY DISPERSION (INVITED) 含群速度色散的合成频率维度上沿模糊边界的单向拓扑态(邀请)

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI: 10.2528/pier20083101

Qingrou Shan, Danying Yu, Guangzhen Li, Luqi Yuan, Xianfeng Chen

{"title":"ONE-WAY TOPOLOGICAL STATES ALONG VAGUE BOUNDARIES IN SYNTHETIC FREQUENCY DIMENSIONS INCLUDING GROUP VELOCITY DISPERSION (INVITED)","authors":"Qingrou Shan, Danying Yu, Guangzhen Li, Luqi Yuan, Xianfeng Chen","doi":"10.2528/pier20083101","DOIUrl":"https://doi.org/10.2528/pier20083101","url":null,"abstract":"We recently proposed a two-dimensional synthetic space including one spatial axis and one synthetic frequency dimension in a one-dimensional ring resonator array [Opt. Lett., Vol. 41, No. 4, 741–744, 2016]. Nevertheless, the group velocity dispersion (GVD) of the waveguides that compose rings was ignored for simplicity. In this paper, we extend the previous work and study the topological one-way edge states in such a synthetic space involving GVD. We show that the GVD brings a natural vague boundary in the frequency dimension, so the topological edge state still propagates at several frequency modes unidirectionally along the spatial axis. Positions of such vague boundary can be controlled by changing the magnitude of the GVD. In particular, a relatively strong GVD can degrade this two-dimensional synthetic space to one-dimensional spatial lattice, but yet the one-way state is still preserved in simulations. Our work therefore exhibits the impact of the GVD on topological photonics in the synthetic space, which will be important for future practical experimental implementations.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"1 1","pages":"33-43"},"PeriodicalIF":6.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75410663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11