发布求助
文献互助 智能选刊 最新文献

2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)最新文献

筛选
英文 中文
On Free-Space Antenna Reflection Phase Measurements in a Reverberation Chamber 混响室中自由空间天线反射相位的测量
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602581
L. A. Bronckers, A. Roc’h, A. B. Smolders
{"title":"On Free-Space Antenna Reflection Phase Measurements in a Reverberation Chamber","authors":"L. A. Bronckers, A. Roc’h, A. B. Smolders","doi":"10.1109/USNC-URSI.2018.8602581","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602581","url":null,"abstract":"A reverberation chamber is a very useful tool to obtain the radiation efficiency of an antenna. While it has been shown that the magnitude of the reflection coefficient can be obtained from these measurements as well, this has not yet been shown for the phase of the reflection coefficient. This would allow for a full characterization of the antenna's behavior as seen from its input port. In this paper it is shown that the phase of the free-space reflection coefficient can be obtained from measurements in a reverberation chamber by taking the angle of the ensemble average of the individual reflection coefficients. This has been empirically verified by comparing several sets of measurement data from the reverberation chamber to their anechoic chamber equivalents for several antennas.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130919433","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
Experimental Realization of Three-Dimensional All-Dielectric Photonic Topological Insulators 三维全介电光子拓扑绝缘体的实验实现
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602701
D. Zhirihin, D. Filonov, M. Gorlach, A. Slobozhanyuk, Y. Kivshar, A. Khanikaev
{"title":"Experimental Realization of Three-Dimensional All-Dielectric Photonic Topological Insulators","authors":"D. Zhirihin, D. Filonov, M. Gorlach, A. Slobozhanyuk, Y. Kivshar, A. Khanikaev","doi":"10.1109/USNC-URSI.2018.8602701","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602701","url":null,"abstract":"Significant progress has recently been made in the study of topological states in photonic topological systems. Being motivated by the recent theoretical proposal of three-dimensional topological structures based on high-permittivity bianisotropic particles, here we verify experimentally the concept of three-dimensional all-dielectric photonic topological insulators in the microwave frequency range. We demonstrate an excitation of topological surface states in the near field as well as their impact on the far-field radiation where the propagation direction is dictated by the excitation of a particular pseudo-spin.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131546071","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
Magnetic-free Circulator Based On Spatio-Temporal Modulation Implemented via Switched Capacitors for Full Duplex Communication 全双工通信中基于开关电容时空调制的无磁环行器
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602797
M. Nafe, M. Hasan, Hind Reggad, Daniel Kuzmenko, Jingjun Chen, X. Liu
{"title":"Magnetic-free Circulator Based On Spatio-Temporal Modulation Implemented via Switched Capacitors for Full Duplex Communication","authors":"M. Nafe, M. Hasan, Hind Reggad, Daniel Kuzmenko, Jingjun Chen, X. Liu","doi":"10.1109/USNC-URSI.2018.8602797","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602797","url":null,"abstract":"Conventional microwave circulators rely on ferro-magentic materials to break the time-reversal symmetry, and thus realizing a non-reciprocal passive device. In terms of system design, the use of ferromagentic materials renders the circulator integration with other transceiver blocks difficult, because they are still incompatible with CMOS fabrication processes. Recently, the concept of spatio-temporal modulation has been introduced to break the time-reversal symmetry, alleviating the need of ferromagnetic materials. In this paper, we present the design of a magnetic-less linear passive circulator based on spatio-temporal modulation of lumped first order LC resonators connected in a Y topology. Unlike other approaches, in this work the spatiotemporal modulation is implemented using switched capacitors, which yield a much simple circuit and has the advantage of high linearity. As a proof of concept, we designed a circulator at 1 GHz that shows an isolation of 44 dB with an insertion loss of 2.9 dB.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131721972","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
Robust Multi-Layer Graphene-Based Plasmonic Cloaking 基于多层石墨烯的等离子体隐身
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602947
R. Emadi, R. Safian, A. Zeidaabadi Nezhad, N. Barani
{"title":"Robust Multi-Layer Graphene-Based Plasmonic Cloaking","authors":"R. Emadi, R. Safian, A. Zeidaabadi Nezhad, N. Barani","doi":"10.1109/USNC-URSI.2018.8602947","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602947","url":null,"abstract":"In this paper, a plasmonic cloak is designed at 1.55 µm in an epsilon-near-zero (ENZ) comprised of alternating layers of a graphene-silica stack. Because the inclusion is covered by Au and moreover, the ENZ's boundaries are sealed by this material with optimized thicknesses, such a cloak can only work for TM incidence. This cloak is robust against the inclusion shape which is capable of working in an exceedingly large bandwidth.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121689077","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: 9
How Hair Cells in Cochlea Analyze Sound Waves New Hypothesis Based on Extraordinary Transmission in Acoustic Metamaterials 耳蜗毛细胞如何分析声波?基于声学超材料超传输的新假设
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602721
Y. Horii, Hong Wenjia, A. Tamaki, T. Kitamura
{"title":"How Hair Cells in Cochlea Analyze Sound Waves New Hypothesis Based on Extraordinary Transmission in Acoustic Metamaterials","authors":"Y. Horii, Hong Wenjia, A. Tamaki, T. Kitamura","doi":"10.1109/USNC-URSI.2018.8602721","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602721","url":null,"abstract":"This paper discusses hearing system of human from engineering point of view, and reports four questions we have now; 1) why eardrum is so sensitive and broadband, 2) how middle ear compensates significant impedance mismatching, 3) how sounds are detected by such a small cochlea, and 4) how the sounds are absorbed perfectly without ringing. Discussion is focused on question 3), and new hypothesis based on extraordinary transmission in acoustic metamaterials is proposed.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125559408","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
To Study the Current Distributions of Electrically Short Dipoles in Magnetized Collisional Plasma via FDTD Simulations 用时域有限差分法模拟研究磁化碰撞等离子体中电短偶极子的电流分布
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602509
Sindhuja Moravineni, J. Ward
{"title":"To Study the Current Distributions of Electrically Short Dipoles in Magnetized Collisional Plasma via FDTD Simulations","authors":"Sindhuja Moravineni, J. Ward","doi":"10.1109/USNC-URSI.2018.8602509","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602509","url":null,"abstract":"This paper presents the study of current distributions on dipole antenna immersed in warm, magnetized collisional plasma. The PF-FDTD (Plasma Fluid- Finite Difference Time Domain) model is used to model the antenna in warm, collisional and magnetized plasma. Three different types of current distributions (i.e) one-dimensional current distribution(analytical), three-dimensional current distribution(analytical), PDTD model for current distributions (numerical) are compared with each other and results are observed. These comparisons of the analytical and numerical solutions show that numerical solutions have higher resolution in analyzing the current distributions of an antenna then the analytical solutions and also the advantages and disadvantages of these different analysis methods are discussed.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117181609","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 Benchmark Suite for Quantifying RCS Simulation Performance on Modern Computers 在现代计算机上量化RCS仿真性能的基准套件
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602595
J. Massey, J. T. Kelley, C. Courtney, D. A. Chamulak, A. Yılmaz
{"title":"A Benchmark Suite for Quantifying RCS Simulation Performance on Modern Computers","authors":"J. Massey, J. T. Kelley, C. Courtney, D. A. Chamulak, A. Yılmaz","doi":"10.1109/USNC-URSI.2018.8602595","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602595","url":null,"abstract":"A computational benchmark suite is presented for quantifying the performance of modern RCS simulations. The suite contains a set of scattering problems that are organized along six dimensions and range from basic to challenging. It also includes reference solutions, performance metrics, and recommended studies that can be used to reveal the strengths and deficiencies of different simulation methods.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122729001","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: 6
On the Generation of Truncated Airy Beams with Antenna Arrays 天线阵截断艾里波束的产生研究
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602834
Zhao Yang, G. Wen, D. Inserra, Yongjun Huang
{"title":"On the Generation of Truncated Airy Beams with Antenna Arrays","authors":"Zhao Yang, G. Wen, D. Inserra, Yongjun Huang","doi":"10.1109/USNC-URSI.2018.8602834","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602834","url":null,"abstract":"The objective of this work is to investigate the generation of an Airy beam at microwave frequencies with antenna arrays when the quasi-diffraction-free requirement is limited to a specific distance along with the propagation axis. In this case, it is observed that the emission aperture can be opportunely truncated in order to observe an Airy distribution at the specified distance and within a specific observation region. Furthermore, the use of directive antennas instead of simple dipoles is investigated as a methodology to increase the range of the Airy beam generation.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133416801","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
Analytical Ray Tracing for Flat Lenses 平面透镜的分析光线追踪
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602616
C. D. Giovampaola, E. Martini, G. Toso, S. Maci
{"title":"Analytical Ray Tracing for Flat Lenses","authors":"C. D. Giovampaola, E. Martini, G. Toso, S. Maci","doi":"10.1109/USNC-URSI.2018.8602616","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602616","url":null,"abstract":"An effective technique for the analysis of metasurfaces (MTSs) imposing boundary conditions that exhibit an axially symmetric variation is proposed in this work. It is shown that when the MTS exhibits a radial variability, the ray paths can be found in a very simple form and our technique provides a fast, yet accurate method to evaluate the trajectories of the rays propagating along both isotropic and anisotropic MTSs, either covered or uncovered by a metal plate. This allows for the efficient design of beam-forming devices.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134620670","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
Cooperative Spectrum Sensing Algorithm Based on Node Filtrating in Cognitive Radio Networks 认知无线电网络中基于节点过滤的协同频谱感知算法
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602534
Fang Ye, Hui Zhang, Xun Zhang, Yuan Tian
{"title":"Cooperative Spectrum Sensing Algorithm Based on Node Filtrating in Cognitive Radio Networks","authors":"Fang Ye, Hui Zhang, Xun Zhang, Yuan Tian","doi":"10.1109/USNC-URSI.2018.8602534","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602534","url":null,"abstract":"The sensing result of cooperative spectrum sensing in cognitive radio significantly depends on the reliability of local detection, and signal-to-noise ratio (SNR) difference among secondary users leads to disparate reliability in local sensing. A novel cooperative spectrum sensing algorithm based on node filtrating (NF-CSS) is proposed in this paper, avoiding low SNR nodes being involved in the collaboration by decreasing the number of nodes. Simulation results showed the algorithm eliminates the influence of low SNR nodes and effectively improves system sensing performance under uneven distribution of SNRs.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128761697","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信