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2017 IEEE International Conference on Computational Electromagnetics (ICCEM)最新文献

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Interpretation method for response waveform of transient scattered electric field by a coated cylinder covered with a thick material 厚材料涂层圆柱体瞬态散射电场响应波形的解释方法
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912721
K. Hagiwara, K. Goto, Y. Takeno, S. Tokumaru, L. Okada
{"title":"Interpretation method for response waveform of transient scattered electric field by a coated cylinder covered with a thick material","authors":"K. Hagiwara, K. Goto, Y. Takeno, S. Tokumaru, L. Okada","doi":"10.1109/COMPEM.2017.7912721","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912721","url":null,"abstract":"We briefly propose a time-domain (TD) asymptotic-numerical solution (TD-ANS) for a transient scattered electric field by a two-dimensional coated cylinder. We assume that a coating medium is thick as compared with the wavelength of a central angular frequency of a pulse wave radiated from an electric line source. The validity of an interpretation method for a response waveform by using the TD-ANS is confirmed by comparing with a reference solution.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116857447","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
TOA measurement using synthetic aperture method in indoor environments 室内环境下综合孔径法TOA测量
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912748
R. Yamaguchi, Kazuma Tomimoto
{"title":"TOA measurement using synthetic aperture method in indoor environments","authors":"R. Yamaguchi, Kazuma Tomimoto","doi":"10.1109/COMPEM.2017.7912748","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912748","url":null,"abstract":"To develop massive-array antennas for 5th generation mobile communication systems it is important to understand their DOA characteristics. Therefore, a number of studies on direction of arrival (DOA) measurements have been reported. We have proposed the use of the synthetic aperture method for measuring DOA. This paper details data obtained by time domain measurements that use frequency sweep from a vector receiver. The results show that the method can acquire the time of arrival and direction of arrival in indoor environments.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116941620","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
Efficient approximate solution of scattering fielc by three-layered dielectric slab for accurate propagation analysis 三层介质板散射场的有效近似解用于精确传播分析
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912790
R. Sato, H. Shirai
{"title":"Efficient approximate solution of scattering fielc by three-layered dielectric slab for accurate propagation analysis","authors":"R. Sato, H. Shirai","doi":"10.1109/COMPEM.2017.7912790","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912790","url":null,"abstract":"In this paper, we derive approximate solution of scattering field by three-layered dielectric slab under high frequency condition. To bundle or collect the multiple reflected rays inside the slab into the primary reflected and transmitted rays, high frequency asymptotic approximation technique is used. We call the derived primary rays “collective rays”. By using the new reflection/transmission coefficients in the present collective rays instead of the conventional ones, the internal multiple reflections effect can be easily included in ray tracing method without increase of the computational cost, so one can efficiently carry out propagation analysis through indoor/outdoor environments.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117095006","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
E-plane choke waveguide aperture antenna for front-fed parabolic reflector 前馈抛物面反射器用e平面扼流波导孔径天线
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912845
Warangkana Chaihongsa, K. Nuangwongsa, C. Phongcharoenpanich
{"title":"E-plane choke waveguide aperture antenna for front-fed parabolic reflector","authors":"Warangkana Chaihongsa, K. Nuangwongsa, C. Phongcharoenpanich","doi":"10.1109/COMPEM.2017.7912845","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912845","url":null,"abstract":"In this paper, an E-plane choke waveguide aperture antenna is designed for front-fed parabolic reflector. The aperture antenna consists of the radiating rectangular waveguide vertically jointed to the two coupling apertures or the E-plane choke to achieve the symmetrical beam for the X-band frequency operating from 10.00 GHz to 10.50 GHz. The simulated beamwidths in the E and H planes at −3 dB were equally 70° and at −10 dB also equally 137°, while the measured results at −3 dB were equally 70° and at −10 dB equally 135°. The simulation and measured results are in good agreement. The simulated and measured antenna gains are 8.24 dBi and 8.21 dBi respectively. The simulation and measured of waveguide aperture for parabolic front-fed reflector antenna results covering frequency range from 9.91 GHz to 10.61 GHz and 9.98 GHz to 10.51 GHz, respectively. The findings validate the applicability of the antenna as the prime feed for rotationally symmetric parabolic reflectors.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121024037","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
Plasmonic semiconductor-based interferometers for ultrasensitive THz biosensing 用于超灵敏太赫兹生物传感的等离子体半导体干涉仪
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912797
Youqiao Ma, Yousef Alattar, M. Eldlio, N. Nguyen-Huu, M. Čada, H. Maeda
{"title":"Plasmonic semiconductor-based interferometers for ultrasensitive THz biosensing","authors":"Youqiao Ma, Yousef Alattar, M. Eldlio, N. Nguyen-Huu, M. Čada, H. Maeda","doi":"10.1109/COMPEM.2017.7912797","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912797","url":null,"abstract":"A novel plasmonic Mach-Zehnder interferometer (MZI) biosensor, which is based on a simple slit-groove microstructure, is reported in the terahertz (THz) regime. The permittivity-sensitive phase difference between the two propagating SPPs waves gives rise to the modulation of the transmitted intensity. The results show that the MZI biosensor possesses a sensitivity as high as 140000 nm/RIU (refractive index unit). The highly compact configuration may find important applications in areas of sensing and integrated THz circuits (ITCs).","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126424818","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
On the use of external MATLAB-based optimization with full-wave simulation to design resonant cavity antennas (Special session) 基于外部matlab的全波仿真优化设计谐振腔天线(专题)
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912855
A. A. Baba, R. Hashmi, K. Esselle, A. Weily
{"title":"On the use of external MATLAB-based optimization with full-wave simulation to design resonant cavity antennas (Special session)","authors":"A. A. Baba, R. Hashmi, K. Esselle, A. Weily","doi":"10.1109/COMPEM.2017.7912855","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912855","url":null,"abstract":"In this paper, a method to combine MATLAB-based optimization with a 3D electromagnetic simulator is described. The work-flow is presented using five main files (.m, .text, .bas, .sig and .rd1), which are required to establish the connection between the two software systems. Speed constrained particle swarm optimization (SMPSO) algorithm was implemented in MATLAB, which utilized the transient 3D simulator of CST Microwave Studio to carry out iterative full-wave analyses during the optimization process. As a design example, this customized optimization method was then employed to maximize the directivity-bandwidth product (DBP) of a mono-slab resonant cavity antenna (RCA). This optimization yielded a compact RCA, with a peak directivity of 21dBi and an extremely large directivity-bandwdith of 56%. The DBP of this optimized RCA is around 6500 and its total area is only 5.6λ20.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122655872","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
Coordinate transformation method: Theoretical analysis and numerical improvement of convergence 坐标变换法:收敛性的理论分析与数值改进
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912836
Xihong Xu, Lifeng Li
{"title":"Coordinate transformation method: Theoretical analysis and numerical improvement of convergence","authors":"Xihong Xu, Lifeng Li","doi":"10.1109/COMPEM.2017.7912836","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912836","url":null,"abstract":"The coordinate transformation method of Chandezon et al. is improved so that it now can handle gratings of smooth profiles with a groove depth-to-period ratio as large as 10 and coated gratings containing simultaneously both smooth and sharp-edge medium interfaces.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"51 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123256779","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
Numerical 3D simulation of the light propagation in the optical WGM-microresonator by the FDTD method 用时域有限差分法对光在wgm -微谐振器中的传播进行了三维数值模拟
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912826
V. Levchenko, A. Perepelkina, A. Zakirov, I. Goryachev, V. Savchenko
{"title":"Numerical 3D simulation of the light propagation in the optical WGM-microresonator by the FDTD method","authors":"V. Levchenko, A. Perepelkina, A. Zakirov, I. Goryachev, V. Savchenko","doi":"10.1109/COMPEM.2017.7912826","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912826","url":null,"abstract":"This work deals with the 3D FDTD (Finite Difference Time Domain) simulation of the light propagation in a WGM (Whispering Gallery Mode) resonator. The computational complexity of such kind of problems is estimated. LRnLA (Locally Recursive non-Locally Asynchronous) algorithms are used in the code implementation of the FDTD method. Two actual numerical simulations were performed: with a short signal and with a prolonged signal. The values of eigenmodes and Q-factor of WGM-resonator were measured numerically. The time dependence of simulated energy pumping is presented.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128329260","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
Shielding current analysis in multiple-layered superconducting film with cracks: Application to contactless method for measuring jC 带裂纹的多层超导膜的屏蔽电流分析:在非接触法测量jC中的应用
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912733
T. Takayama, A. Saitoh, A. Kamitani
{"title":"Shielding current analysis in multiple-layered superconducting film with cracks: Application to contactless method for measuring jC","authors":"T. Takayama, A. Saitoh, A. Kamitani","doi":"10.1109/COMPEM.2017.7912733","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912733","url":null,"abstract":"Applicability of the scanning permanent magnet method to the measurement of the critical current density in a high-temperature superconducting (HTS) film containing a crack with the consideration of a depth has been investigated numerically. To this end, a numerical code has been developed for analyzing the shielding current density in a multiple-layered HTS film with a crack. By using the code, the scanning permanent magnet method has been reproduced numerically. The results of computations show that a region including a crack can be obtained by using a defect parameter. In addition, it is found that the scanning permanent magnet method proved to detect the even internal crack.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123103508","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
Metamaterial-embedded beamforming phased-array antennas for degradable GPS links 用于可降解GPS链路的超材料嵌入波束形成相控阵天线
2017 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2017-03-01 DOI: 10.1109/COMPEM.2017.7912818
Heejun Park, Changhyeong Lee, Dajung Lee, M. K. Khattak, S. Kahng, Donseok Roh
{"title":"Metamaterial-embedded beamforming phased-array antennas for degradable GPS links","authors":"Heejun Park, Changhyeong Lee, Dajung Lee, M. K. Khattak, S. Kahng, Donseok Roh","doi":"10.1109/COMPEM.2017.7912818","DOIUrl":"https://doi.org/10.1109/COMPEM.2017.7912818","url":null,"abstract":"This paper presents an approach to enable a typical GPS receiver to be much less susceptible to intentional disruption such as jamming and change in link environment. Beamforming GPS receivers comprising 4×4 elements or 8×8 ones are designed using metamaterials, for the placement on the body of an aircraft as an airborne vehicle, to cope with the varying angle of incidence with good antenna gain and the low inter-element interference to make the system more robust and adaptive. The design results show the antenna gain much higher than 5 dBi, and the movable circularly polarized beam with the excellent axial ratio at the resonance frequency and low mutual coupling between the elements.","PeriodicalId":199234,"journal":{"name":"2017 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123373581","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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