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2019 IEEE International Conference on Computational Electromagnetics (ICCEM)最新文献

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Analysis and Design of A Novel Ultra Wideband Planar Antenna 一种新型超宽带平面天线的分析与设计
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-20 DOI: 10.1109/COMPEM.2019.8779046
Xiaoyan Zhao, Shichun Huang, Zhaoneng Jiang
{"title":"Analysis and Design of A Novel Ultra Wideband Planar Antenna","authors":"Xiaoyan Zhao, Shichun Huang, Zhaoneng Jiang","doi":"10.1109/COMPEM.2019.8779046","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779046","url":null,"abstract":"In this paper, based on the research of traditional dipole antenna, a new type of umbrella-shaped ultra-wideband antenna with a total size of 18 mm×16 mm×1.4 mm is proposed. The antenna is fed by the microstrip feed line and forms a cross structure by rotating the radiating portion of the dipole antenna, so that the antenna size can be reduced to 0.65 wavelength in the case of ultra-bandwidth. The simulation results show that the bandwidth of the antenna is 5.0-11.0 GHz according to S11 and the relative bandwidth is 75%. The maximum gain of the antenna at the center frequency is 1.6 dBi. The antenna can be used in ultra-wideband （UWB） communication systems. This antenna has the advantages of a single-layer structure, light weight and simple feeding structure. Therefore, it can be easy to integrate with a planar circuit.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"331 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132620897","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
Evaluation of Reconfigurable Reflectarray Antenna Element at 19 GHz Based on Highly Anisotropic Liquid Crystal Material 基于高各向异性液晶材料的19ghz可重构反射阵天线单元评价
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-20 DOI: 10.1109/COMPEM.2019.8778849
Longzhu Cai, Z. Jiang, W. Hong
{"title":"Evaluation of Reconfigurable Reflectarray Antenna Element at 19 GHz Based on Highly Anisotropic Liquid Crystal Material","authors":"Longzhu Cai, Z. Jiang, W. Hong","doi":"10.1109/COMPEM.2019.8778849","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8778849","url":null,"abstract":"The design and evaluation of a reconfigurable reflectarray antenna element with single resonant structure operating at around 19 GHz is presented. The reconfigurability is obtained by using a novel liquid crystal material with high anisotropy and low dielectric loss. The result shows a phase shift of305 degrees at 19 GHz when tuning the LC materials, and the phase shift range is sufficiently high and enough for most practical designs of reflectarray antennas. The unit cell element with multi resonant structure is expected to have a better phase property, and could provide a beam scanning capability over a wide angular range for reconfigurable reflectarray antennas.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115511153","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 Multiple-Transmitting and Multiple-Receiving Predicting Far-Field RCS Algorithm Based on CNFFFT 基于CNFFFT的多发多收远场RCS预测算法
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-20 DOI: 10.1109/COMPEM.2019.8779148
Jianhang Sun, Wei-dong Hu, Yang Liu, Baige Xing, Yunzhang Zhao
{"title":"A Multiple-Transmitting and Multiple-Receiving Predicting Far-Field RCS Algorithm Based on CNFFFT","authors":"Jianhang Sun, Wei-dong Hu, Yang Liu, Baige Xing, Yunzhang Zhao","doi":"10.1109/COMPEM.2019.8779148","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779148","url":null,"abstract":"When the Circular Near-Field to Far-Field Transformations (CNFFFT) is used to near-field to far-field transformation observed over a large range of angles, there is an angular error to the theoretical far-field results. In this paper, a multi-receiving and multi-transmitting RCS near-field to far-field Transformation based on the CNFFFT is proposed. By using a form of multi-transmitting and multi-receiving this method increases the number of effective phase centers in the system and obtains more information about a scene. The RCS near-field to far-field transformations are performed in different phase centers using CNFFFT. The data are stitched together by using the results of each small-angle transformation to achieve accurate RCS near-field to far-field transformation in the full angles. By using two groups of scatterer respectively consisting of five and nine ideal scattering points, the near-field to far-field transformation simulation experiments based on this method are performed. Results verify the correctness and effectiveness of this method.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124463293","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
Investigation of Optically Transparent Monopole Antenna Based on Indium Tin Oxide 基于氧化铟锡的光透明单极天线研究
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-20 DOI: 10.1109/COMPEM.2019.8779168
Longzhu Cai, Peiguo Zheng, W. Hong
{"title":"Investigation of Optically Transparent Monopole Antenna Based on Indium Tin Oxide","authors":"Longzhu Cai, Peiguo Zheng, W. Hong","doi":"10.1109/COMPEM.2019.8779168","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779168","url":null,"abstract":"an optically transparent monopole antenna based on indium tin oxide (ITO) is investigated in this paper. The optically transparent ITO thin film is used as the conductive layer, which is coated on an optically transparent glass substrate. The proposed antenna not only owns the merit of ultra-wide bandwidth, but also possesses a high optical transparency and light weight, and it is expected to be easily integrated to the surface of windows, and applied in many ultra wideband applications, with little chance of detection.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116722035","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
Dual-band Airy Beam Generators at Terahertz 太赫兹双频Airy波束发生器
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-20 DOI: 10.1109/COMPEM.2019.8779154
Y. Liu, Tailei Wang, Rensheng Xie, Guohua Zhai, Shouzheng Zhu, Jun Ding
{"title":"Dual-band Airy Beam Generators at Terahertz","authors":"Y. Liu, Tailei Wang, Rensheng Xie, Guohua Zhai, Shouzheng Zhu, Jun Ding","doi":"10.1109/COMPEM.2019.8779154","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779154","url":null,"abstract":"A novel dual-band meta-atom for the Pancharatnam-Berry metasurface is proposed, which can realize simultaneous phase and amplitude modulations at two terahertz frequencies. Based on the meta-atom, a dual-band Airy beam generator and a dual-band autofocusing Airy beam generator are numerically demonstrated. The full wave simulation results agree well with the numerical calculation results, and both results satisfy the designed goals.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129006003","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
Liquid Crystal-Based Polarization Reconfigurable Cross-Slot Fed Patch Antenna 液晶极化可重构交叉槽馈电贴片天线
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-20 DOI: 10.1109/COMPEM.2019.8779107
Guanghui Xu, Jun Shu, Hong-li Peng, Yao-ping Zhang, W. Yin, J. Mao
{"title":"Liquid Crystal-Based Polarization Reconfigurable Cross-Slot Fed Patch Antenna","authors":"Guanghui Xu, Jun Shu, Hong-li Peng, Yao-ping Zhang, W. Yin, J. Mao","doi":"10.1109/COMPEM.2019.8779107","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779107","url":null,"abstract":"A liquid crystal (LC)-based polarization reconfigurable cross-slot fed patch antenna is presented in this paper. The LC-based antenna is designed to operate at around 27.6 GHz. The antenna includes four perpendicular patches which are fed by a cross slot. By controlling LC permittivities under these patches, the different resonance frequencies can be obtained. Based on the degenerate mode theory, the frequency shift of the perpendicular patches generates the phase difference of 90°, and then the circular polarization will be achieved. When resonance frequencies of the patches are the same, linear polarization will be obtained. The simulated results shows that the LC-based antenna can have the left/right-hand circular polarization, and linear polarization switchable functionality.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"92 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113994222","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
High-efficiency Numerical Simulation of Electromagnetic Response of Complex Geoelectric Structures Based on GPU Parallel Symplectic Algorithm 基于GPU并行辛算法的复杂地电结构电磁响应高效数值模拟
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-01 DOI: 10.1109/COMPEM.2019.8779147
Jianwei Lei, H. Fang
{"title":"High-efficiency Numerical Simulation of Electromagnetic Response of Complex Geoelectric Structures Based on GPU Parallel Symplectic Algorithm","authors":"Jianwei Lei, H. Fang","doi":"10.1109/COMPEM.2019.8779147","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8779147","url":null,"abstract":"For forward modeling of large size and fine structures, the numerical accuracy and computational efficiency are not high due to the stability conditions and dense grid number. In this paper, the symplectic Euler algorithm, surface conformal technique and GPU acceleration technique were combined to establish a precise and high-efficiency numerical model of electromagnetic wave propagation in complex geoelectric structures. And we realized the refined and efficient calculation of the electromagnetic response of arbitrary shape underground target. The results show that the accuracy and efficiency of ground penetrating radar (GPR) forward modeling are greatly improved, which provides a theoretical basis for accurately interpreting GPR detection data, and provides an accurate and efficient forward modeling for the inversion imaging.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116763321","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
GPR Echo Analysis of Compound Scattering of Underground Rough Surface and Multiple Objects 地下粗糙地表多目标复合散射探地雷达回波分析
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-01 DOI: 10.1109/COMPEM.2019.8778908
Y. Liu, Li-xin Guo, Li-ying Feng
{"title":"GPR Echo Analysis of Compound Scattering of Underground Rough Surface and Multiple Objects","authors":"Y. Liu, Li-xin Guo, Li-ying Feng","doi":"10.1109/COMPEM.2019.8778908","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8778908","url":null,"abstract":"In order to better study the echo characteristics of ground penetrating radar (GPR) in detecting multiple buried targets and layered rough surface, a composite scattering model for simulating layered rough surface and multiple targets is established. In this model, the difference mesh of time and space is used as the basic computing unit. Medium parameters of different layers and different targets are set in the grid attributes of different locations. Absorption boundaries are set at the boundary of the computing area to simulate the unbounded region. Using this model, the results of B-scan echo data of ground penetrating radar are obtained. The effects of target depth and geometric parameters on the scattering characteristics of echo are discussed, and the validity of this model is verified.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116935470","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
A Matrix Pencil Method to Realize Random and Sparse Metalens 一种实现随机稀疏超构图像的矩阵铅笔法
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-01 DOI: 10.1109/COMPEM.2019.8778950
Shuaishuai Li, Mengmeng Li, Yefeng Yu, X. Ni, Rushan Chen
{"title":"A Matrix Pencil Method to Realize Random and Sparse Metalens","authors":"Shuaishuai Li, Mengmeng Li, Yefeng Yu, X. Ni, Rushan Chen","doi":"10.1109/COMPEM.2019.8778950","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8778950","url":null,"abstract":"We designed random and sparse metalens for one- or two- dimensional (1D or 2D) with matrix pencil method. Compared with the traditional algorithm of random and sparse that only randomizes the meta-atoms’ position, the improved method can design both the position and phase accurately . All-dielectric random metalenses are operating at 220GHz with our proposed method. Minimum reduction of focusing efficiency can be obtained with regard to a periodically arranged metalens. Our proposed random and sparse metalenses can achieve much higher efficiency while keeping polarization-independent compared with existing methods of literature searching.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117231548","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
Estimation of Dipole Moment from the Exterior Field of a Polarized Nanoparticle 从极化纳米粒子的外场估计偶极矩
2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-01 DOI: 10.1109/COMPEM.2019.8778840
Zhijing Hu, Yanlin Li, Zi Wang, T. Shen, T. Wong
{"title":"Estimation of Dipole Moment from the Exterior Field of a Polarized Nanoparticle","authors":"Zhijing Hu, Yanlin Li, Zi Wang, T. Shen, T. Wong","doi":"10.1109/COMPEM.2019.8778840","DOIUrl":"https://doi.org/10.1109/COMPEM.2019.8778840","url":null,"abstract":"Methods to estimate the dipole moment induced by an applied terahertz electric field on a semiconductor nanoparticle are studied, encompassing a first principle calculation involving charge integration and extraction from the exterior field intensity at a sample point. The latter approach requires very little post processing of data from field simulation based on coupling of charge transport equations to Maxwell’s equations. When precaution is taken to avoid boundary of the domain for numerical simulation in the placement of the field sample point, very good match between the two methods are obtained. Validation of the quasi-static assumption in the field-charge interactions in the nanoparticle and the dominance of the dipole mode in excitation of polarization in nanoparticles of size less than 500 nm in the terahertz range was carried out by comparison of the computed exterior field intensity to a dipole field and the evaluation of the quadruple moment for the charge distribution in the particle.","PeriodicalId":342849,"journal":{"name":"2019 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127270321","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
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