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2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)最新文献

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Overview of ultrawideband systems 超宽带系统概述
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731466
T. Sarkar, E. Mokole, M. S. Palma
{"title":"Overview of ultrawideband systems","authors":"T. Sarkar, E. Mokole, M. S. Palma","doi":"10.1109/ICEAA.2016.7731466","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731466","url":null,"abstract":"Conventionally, the design of antennas is narrowband and little attention is paid to the phase responses of the devices as functions of frequency. Even the use of the term broadband is misleading as one essentially takes a narrow band signal and sweeps it across the band of interest. In fact, it is not necessary to pay too much attention to the phase for narrowband signals, as the role played by the frequency factor is that of a scalar multiplier. However, if one now wants to use multiple frequencies and attempts to relate the data obtained at each frequency, then this frequency term can no longer be ignored. Depending on the application, this scale factor can actually have significant variations, which also depend on the size and the shape of the bandwidth over which the performance of the system is observed. In the time domain, the effect of this frequency term creates havoc as it provides a highly nonlinear operation and hence must be studied carefully. By broadband we mean temporal signals with good signal integrity. When it comes to waveform diversity, which implicitly assumes time-dependent phenomena, it is not possible to do any meaningful system design unless the effects of the antennas are taken into account. These effects will be illustrated in terms of the responses of the antennas and on the applicability of the current popular methodology of time reversal for the vector electromagnetic problem.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116502109","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
Approximation of dielectric spectroscopy data with Herglotz functions on the real line and convex optimization 用赫格罗兹函数逼近介电光谱数据的实线和凸优化
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731537
Y. Ivanenko, Sven Norde
{"title":"Approximation of dielectric spectroscopy data with Herglotz functions on the real line and convex optimization","authors":"Y. Ivanenko, Sven Norde","doi":"10.1109/ICEAA.2016.7731537","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731537","url":null,"abstract":"This paper describes the ongoing research on approximation of frequency dielectric spectroscopy measurement data. The algorithm based on passive approximation, Hilbert transform and Tikhonov regularization for non-uniformly sampled data is derived. The interpolation and extrapolation problems with application to the dielectric spectroscopy measurement data are solved using convex optimization.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122408743","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: 4
Scattering from structures with acute, obtuse and reflex corners 有锐角、钝角和反射角的结构散射
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731543
A. Markowskei, P. D. Smith
{"title":"Scattering from structures with acute, obtuse and reflex corners","authors":"A. Markowskei, P. D. Smith","doi":"10.1109/ICEAA.2016.7731543","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731543","url":null,"abstract":"A numerical study of the scattering of an acoustic plane wave by an infinite cylindrical structure with a corner with Dirichlet boundary condition is reported. An integral equation formulation is employed for which rapidly convergent quadrature schemes are developed. The effectiveness of the scheme for a variety of interior angles of the corner: acute, obtuse and reflex, is discussed.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122735414","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
Galerkin method for solving scalar problems of diffraction by a partially shielded inhomogeneous body 求解部分屏蔽非均匀体衍射标量问题的伽辽金方法
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731398
E. Smolkin, A. Tsupak
{"title":"Galerkin method for solving scalar problems of diffraction by a partially shielded inhomogeneous body","authors":"E. Smolkin, A. Tsupak","doi":"10.1109/ICEAA.2016.7731398","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731398","url":null,"abstract":"The scalar problem of diffraction by an inhomogeneous partially shielded body is considered. The boundary value problem leads to a system of integral equations on two- and three-dimensional manifolds with boundary. The equivalence of the integral and differential formulations of the problem is established; the Fredholm property and invertibility of the matrix operator are proved. Galerkin method for numerical solving of the integral equations is proposed. The approximation property for compactly supported basis functions as well as the convergence of Galerkin method in proper Sobolev spaces is proved. Numerical results are provided.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116710498","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
Synergistic use of AirMOSS P-band SAR with the SMAP L-band radar-radiometer for soil moisture retrieval 协同使用AirMOSS p波段SAR与SMAP l波段雷达辐射计进行土壤水分反演
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731518
R. Akbar, R. Chen, Alireza Tabatabaeenejad, M. Moghaddam
{"title":"Synergistic use of AirMOSS P-band SAR with the SMAP L-band radar-radiometer for soil moisture retrieval","authors":"R. Akbar, R. Chen, Alireza Tabatabaeenejad, M. Moghaddam","doi":"10.1109/ICEAA.2016.7731518","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731518","url":null,"abstract":"We present and discuss an inter-comparison between microwave remote sensing observations from the NASA Soil Moisture Active-Passive (SMAP) mission and those from the NASA Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS). Earth gridded 1, 3, and 9 km AirMOSS and SMAP SAR observations show, in general, a strong correlation (R2 ≥ 0. 5). However, the correlation degrades at extreme AirMOSS local incidence angles. L-band brightness temperature from SMAP and P-band backscatter from AirMOSS are almost uncorrelated (R2 ≤ -0.3) and indicate the need for more mathematically comprehensive techniques to merge these datasets to estimate surface soil moisture.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129748198","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 single band beam scanning active phased array antenna 一种单波段波束扫描有源相控阵天线
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731528
B. Majumdar, K. Esselle
{"title":"A single band beam scanning active phased array antenna","authors":"B. Majumdar, K. Esselle","doi":"10.1109/ICEAA.2016.7731528","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731528","url":null,"abstract":"A fixed frequency phased rectangular microstrip antenna array is proposed. It consists of two patch antennas places side by side and one element is fed with a meandered phase delay. Additionally varactor diodes have been used to vary the overall phase delay for beam scanning. The design avoids any additional bias paths and only on external bias-tee is required for biasing. A prototype that can scan its main lobe between 7° and 32° and with the resonance frequency tunable between 2027 MHz and 2210 MHz, under different bias conditions, has been fabricated as a proof of concept. The fabricated antenna also has an additional tunable resonance between 2356 MHz and 2450 MHz.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130265884","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: 4
An improved approach for multi-target detection and tracking in automotive radar systems 汽车雷达系统中多目标检测与跟踪的改进方法
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731433
Mohammed Khalil, A. Eltrass, Omar Elzaafarany, B. Galal, Khaled Walid, A. Tarek, Omar Ahmadien
{"title":"An improved approach for multi-target detection and tracking in automotive radar systems","authors":"Mohammed Khalil, A. Eltrass, Omar Elzaafarany, B. Galal, Khaled Walid, A. Tarek, Omar Ahmadien","doi":"10.1109/ICEAA.2016.7731433","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731433","url":null,"abstract":"In this work, a multiple-target tracking problem for automotive radar applications is formulated and an improved multi-target tracking system is proposed to solve the detection and tracking problem in the presence of clutter with high accuracy and low computational cost. The proposed tracking system is based on the Unscented Kalman Filter (UKF) with Constant Turn Rate and Acceleration (CTRA) dynamic model and on the Joint Probabilistic Data Association (JPDA) algorithm, while the track management algorithm is based on M/N tests and their composite rules. The results show that the CTRA-UKF algorithm in conjunction with both the JPDA and the composite-based track management tests improve the overall performance of the tracking system over other techniques used in automotive radar applications.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126775525","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: 12
A novel DGTD method and engineering applications 一种新的DGTD方法及其工程应用
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731388
Wenhua Yu, Lei Zhao, Geng Chen
{"title":"A novel DGTD method and engineering applications","authors":"Wenhua Yu, Lei Zhao, Geng Chen","doi":"10.1109/ICEAA.2016.7731388","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731388","url":null,"abstract":"Discontinuous Galerkin time domain (DGTD) offers attractive properties when it is applied to solve Maxwell's equations. The DGTD method is originated from the finite volume time domain (FVTD) and finite element method (FEM), and has the advantages of the two methods; furthermore, it is more flexible and accurate, and provides an embarrassingly parallel characteristic than FVTD and FEM. In this chapter, we introduce the basic concept of parallel DGTD method based on message passing interface (MPI) and graphics processing unit (GPU) based thread and memory access coalesced. The parallel DGTD method is then applied to solve the typical engineering problems. The numerical results demonstrate that the DGTD method is accurate and efficient for general electromagnetic problems.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121375679","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: 3
Wideband high-gain circularly polarized planar antenna based on polarization rotator 基于偏振旋转器的宽带高增益圆极化平面天线
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731415
Y. Jia, Y. Liu, S. Gong
{"title":"Wideband high-gain circularly polarized planar antenna based on polarization rotator","authors":"Y. Jia, Y. Liu, S. Gong","doi":"10.1109/ICEAA.2016.7731415","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731415","url":null,"abstract":"A wideband high-gain planar antenna based on polarization rotator for circular polarization is presented. The proposed circularly polarized (CP) antenna is formed using a 4 × 4 array of polarization rotator (PR) cells and fed by a microstrip line through a slot cut on the ground plane. The PR is excited by the feeding slot and utilized to adjust axial ratio (AR) for wideband circular polarization. The CP antenna features a wide AR bandwidth (AR ≤ 3 dB) of 13.4% and an impedance bandwidth (S11 ≤ -10 dB) of 21%. Their overlapping band is the same as the AR bandwidth. To verify the simulation results, a prototype of the proposed antenna is fabricated and measured. The peak measured gain of the proposed antenna is 9.1 dBi. Good agreement is obtained between the measured and simulated results.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126337106","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: 12
A low-profile printed antenna for UWB applications 用于超宽带应用的低轮廓印刷天线
2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI: 10.1109/ICEAA.2016.7731549
R. A. Santos, A. C. Sodré, S. Barbin
{"title":"A low-profile printed antenna for UWB applications","authors":"R. A. Santos, A. C. Sodré, S. Barbin","doi":"10.1109/ICEAA.2016.7731549","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731549","url":null,"abstract":"This work reports the development of a simple, low-profile and ultra-wideband printed antenna. The proposed antenna is based on a truncated ground plane and an impedance matching structure formed by a round junction and two chamfers. These modifications significantly increase the antenna frequency bandwidth compared to conventional microstrip antennas and broadband printed monopole antennas. An antenna prototype was built using a substrate of Arlon DiClad 880 and its reflection coefficient was measured and compared to HFSS numerical simulations. Good agreement between simulations and experimental results was obtained, even for higher frequencies. A K connector, which operates up to 40 GHz, was used in the antenna. The experimental results indicate a bandwidth spanning from 1.79 GHz to 28.02 GHz, representing a fractional bandwidth of 176% referred to the central frequency (i.e., 14.9 GHz).","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126459631","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
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