Progress in Electromagnetics Research M最新文献_第6页

INVESTIGATION OF FOLD-DEPENDENT BEHAVIOR IN AN ORIGAMI-INSPIRED FSS UNDER NORMAL INCIDENCE 折纸启发FSS在正常入射下的折纸依赖行为研究

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Progress in Electromagnetics Research M Pub Date : 2018-01-11 DOI: 10.2528/PIERM17092504

Deanna Sessions, K. Fuchi, Sumana Pallampati, David Grayson, Steven R. Seiler, G. Bazzan, G. Reich, P. Buskohl, G. Huff

{"title":"INVESTIGATION OF FOLD-DEPENDENT BEHAVIOR IN AN ORIGAMI-INSPIRED FSS UNDER NORMAL INCIDENCE","authors":"Deanna Sessions, K. Fuchi, Sumana Pallampati, David Grayson, Steven R. Seiler, G. Bazzan, G. Reich, P. Buskohl, G. Huff","doi":"10.2528/PIERM17092504","DOIUrl":"https://doi.org/10.2528/PIERM17092504","url":null,"abstract":"Frequency selective surfaces (FSS) filter specific electromagnetic (EM) frequencies defined by the geometry and often fixed periodic spacing of a conductive element array. By embedding the FSS pattern into an origami structure, we expand the number of physical configurations and periodicities of the FSS, allowing for fold-driven frequency tuning. The goal of this work is to examine the folddependent polarization and frequency behavior of an origami-inspired FSS under normal incidence and provide physical insight into its performance. The FSS is tessellated with the Miura-ori pattern and uses resonant length metallic dipoles with orthogonal orientations for two primary modes of polarization. A driven dipole model with geometric morphologies, representative of the folding operations, provides physical insight into the observed behavior of the FSS. Full-wave simulations and experimental results demonstrate a shift in resonant frequency and transmissivity with folding, highlighting the potential of origami structures as an underlying mechanism to achieve fold-driven EM agility in FSSs.","PeriodicalId":39028,"journal":{"name":"Progress in Electromagnetics Research M","volume":"63 1","pages":"131-139"},"PeriodicalIF":1.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2528/PIERM17092504","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49258723","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: 22

Comparison of Time-Domain Finite-Difference, Finite-Integration, and Integral-Equation Methods for Dipole Radiation in Half-Space Environments 半空间环境中偶极子辐射时域有限差分、有限积分和积分方程方法的比较

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Progress in Electromagnetics Research M Pub Date : 2017-06-18 DOI: 10.2528/PIERM17021602

C. Warren, S. Šesnić, A. Ventura, L. Pajewski, D. Poljak, A. Giannopoulos

{"title":"Comparison of Time-Domain Finite-Difference, Finite-Integration, and Integral-Equation Methods for Dipole Radiation in Half-Space Environments","authors":"C. Warren, S. Šesnić, A. Ventura, L. Pajewski, D. Poljak, A. Giannopoulos","doi":"10.2528/PIERM17021602","DOIUrl":"https://doi.org/10.2528/PIERM17021602","url":null,"abstract":"In this paper we compare current implementations of commonly used numerical techniques - the Finite-Difference Time-Domain (FDTD) method, the Finite-Integration Technique (FIT), and Time-Domain Integral Equations (TDIE) - to solve the canonical problem of a horizontal dipole antenna radiating over lossless and lossy half-spaces. These types of environment are important starting points for simulating many Ground Penetrating Radar (GPR applications which operate in the near-field of the antenna, where the interaction among the antenna, the ground, and targets is important. We analysed the simulated current at the centre of the dipole antenna, as well as the electric field at different distances from the centre of the antenna inside the half-space. We observed that the results from the simulations using the FDTD and FIT methods agreed well with each other in all of the environments. Comparisons of the electric field showed that the TDIE technique agreed with the FDTD and FIT methods when observation distances were towards the far-field of the antenna but degraded closer to the antenna. These results provide evidence necessary to develop a hybridisation of current implementations of the FDTD and TDIE methods to capitalise on the strengths of each technique.","PeriodicalId":39028,"journal":{"name":"Progress in Electromagnetics Research M","volume":"57 1","pages":"175-183"},"PeriodicalIF":1.0,"publicationDate":"2017-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2528/PIERM17021602","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49251968","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: 10

Rough Surface Scattering via Two-Way Parabolic Integral Equation 基于双向抛物积分方程的粗糙面散射

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Progress in Electromagnetics Research M Pub Date : 2017-04-23 DOI: 10.2528/PIERM17021801

M. Spivack, O. R. Spivack

引用次数: 4

Performance Characteristics Of Non-Arc Double Stator Permanent Magnet Generator 无弧双定子永磁发电机的性能特点

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Progress in Electromagnetics Research M Pub Date : 2017-04-17 DOI: 10.2528/PIERM16111503

R. Suhairi, R. N. Firdaus, Zuki Nor Aishah, Fairul Azhar Abdul Shukor, N. Othman, Z. Ibrahim, C. Aravind

引用次数: 2

Linear Diffusion into a Faraday Cage 法拉第笼中的线性扩散

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Progress in Electromagnetics Research M Pub Date : 2012-01-01 DOI: 10.2172/1031311

L. Warne, Yau T. Lin, K. Merewether, Kenneth C. Chen

引用次数: 2

MATHEMATICAL MODEL FOR THE PREDICTION OF MICROWAVE SIGNAL ATTENUATION DUE TO DUSTSTORM 沙尘暴微波信号衰减预测的数学模型

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Progress in Electromagnetics Research M Pub Date : 2009-01-01 DOI: 10.2528/PIERM09021906

Z. E. Elshaikh, M. R. Islam, Othman Omran Khalifa, H. E. Abdel-Raouf

引用次数: 53