Pub Date : 2018-03-26DOI: 10.1109/COMPEM.2018.8496730
Biyao Zhao, Siming Pan, J. Fan
Green's function in lossy multi-layer dielectrics is presented using DCIM method for 3D IC/packaging in this paper. Loss effects in layered medium are analysed through the components extracted from DCIM. The proposed layered Green's function can be used for 3D IC and packaging applications.
{"title":"Green's Functions in Lossy Multi-Layer Dielectrics for 3D IC/Packaging Applications","authors":"Biyao Zhao, Siming Pan, J. Fan","doi":"10.1109/COMPEM.2018.8496730","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496730","url":null,"abstract":"Green's function in lossy multi-layer dielectrics is presented using DCIM method for 3D IC/packaging in this paper. Loss effects in layered medium are analysed through the components extracted from DCIM. The proposed layered Green's function can be used for 3D IC and packaging applications.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124427067","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}
Pub Date : 2018-03-26DOI: 10.1109/COMPEM.2018.8496540
L. Jiang, H. Yao, H.H. Zhang, Y. Qin
While machine learning is becoming a demanding request in every corner of modern technology development, we are trying to see if we could make computational electromagnetic algorithms compatible to machine learning methods. In this paper, we introduce two efforts in line with this direction: solving method of moments (MoM) can be seen as a training training process. Consequently, the artificial neural network (ANN) could be used to solve MoM naturally through training. Amazon Web Service (AWS) can be used as the computations platform to utilize the existing hardware and software resources for machine learning. Another effort regarding to the nonlinear IO of ICs can be modeled through ANN. Hence, a behavior model with growing accuracy can be obtained for the signal integrity and power integrity analysis. It can be further hybridized into discontinuous Galerkin time domain (DGTD) method for CEM characterizations. Benchmarks are provided to demonstrate the feasibility of the proposed methods.
虽然机器学习正在成为现代技术发展的每个角落的苛刻要求，但我们正在尝试是否可以使计算电磁算法与机器学习方法兼容。在本文中，我们介绍了两个与此方向一致的努力:矩量求解方法(MoM)可以看作是一个训练训练过程。因此，人工神经网络(ANN)可以通过训练自然地解决MoM问题。Amazon Web Service (AWS)可以作为计算平台，利用现有的硬件和软件资源进行机器学习。另一个关于集成电路非线性输入的研究可以通过人工神经网络建模。从而为信号完整性和功率完整性分析提供了精度不断提高的行为模型。该方法可进一步杂化为不连续伽辽金时域(DGTD)方法，用于电能谱表征。提供了基准来证明所提出方法的可行性。
{"title":"Machine Learning Based Computational Electromagnetic Analysis for Electromagnetic Compatibility","authors":"L. Jiang, H. Yao, H.H. Zhang, Y. Qin","doi":"10.1109/COMPEM.2018.8496540","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496540","url":null,"abstract":"While machine learning is becoming a demanding request in every corner of modern technology development, we are trying to see if we could make computational electromagnetic algorithms compatible to machine learning methods. In this paper, we introduce two efforts in line with this direction: solving method of moments (MoM) can be seen as a training training process. Consequently, the artificial neural network (ANN) could be used to solve MoM naturally through training. Amazon Web Service (AWS) can be used as the computations platform to utilize the existing hardware and software resources for machine learning. Another effort regarding to the nonlinear IO of ICs can be modeled through ANN. Hence, a behavior model with growing accuracy can be obtained for the signal integrity and power integrity analysis. It can be further hybridized into discontinuous Galerkin time domain (DGTD) method for CEM characterizations. Benchmarks are provided to demonstrate the feasibility of the proposed methods.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115743309","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}
Pub Date : 2018-03-26DOI: 10.1109/COMPEM.2018.8496496
Fengyu Zhang, Kai Da Xu, Yijun Cai, Mengze Li, Yanhui Liu
Compact dual series-cascaded ring resonators comprised of three parallel-coupled lines are proposed for design of fifth-order bandpass filter (BPF) with multiple transmission zeros. Two pairs of $pmb{3lambda_{text{g}}/4}$ parallel-coupled lines are cascaded to a pair of $pmb{lambda_{text{g}}/4}$ parallel-coupled lines to construct dual ring resonators, which can achieve a high-performance BPF with five transmission poles and eight transmission zeros. For further demonstration, a filter example centered at 2.08 GHz is designed with source-load cross coupling to obtain nine transmission zeros.
{"title":"Bandpass Filter Using Dual Series-Cascaded Ring Resonators with Multiple Transmission Zeros","authors":"Fengyu Zhang, Kai Da Xu, Yijun Cai, Mengze Li, Yanhui Liu","doi":"10.1109/COMPEM.2018.8496496","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496496","url":null,"abstract":"Compact dual series-cascaded ring resonators comprised of three parallel-coupled lines are proposed for design of fifth-order bandpass filter (BPF) with multiple transmission zeros. Two pairs of $pmb{3lambda_{text{g}}/4}$ parallel-coupled lines are cascaded to a pair of $pmb{lambda_{text{g}}/4}$ parallel-coupled lines to construct dual ring resonators, which can achieve a high-performance BPF with five transmission poles and eight transmission zeros. For further demonstration, a filter example centered at 2.08 GHz is designed with source-load cross coupling to obtain nine transmission zeros.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128465396","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}
Pub Date : 2018-03-26DOI: 10.1109/COMPEM.2018.8496681
Chunwang Xiang, Xunwang Dang, Maokun Li, Fan Yang, Shenheng Xu
In this study, we investigate the barycentric subdivision method for numerical integration in three-dimensional surface integral equation. This method allows a uniform treatment of both singular and non-singular integrals by avoiding overlap between the quadrature points of source integral and field integral. We studied the convergence of this method for singular integration. Numerical examples also show that this method could achieve the same level of accuracy for method of moments. Moreover, this method can reduce the time of matrix setup by half and hence increase the computational efficiency of method of moments.
{"title":"The Application of Barycentric Subdivision Method for Numerical Integration in Method of Moments","authors":"Chunwang Xiang, Xunwang Dang, Maokun Li, Fan Yang, Shenheng Xu","doi":"10.1109/COMPEM.2018.8496681","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496681","url":null,"abstract":"In this study, we investigate the barycentric subdivision method for numerical integration in three-dimensional surface integral equation. This method allows a uniform treatment of both singular and non-singular integrals by avoiding overlap between the quadrature points of source integral and field integral. We studied the convergence of this method for singular integration. Numerical examples also show that this method could achieve the same level of accuracy for method of moments. Moreover, this method can reduce the time of matrix setup by half and hence increase the computational efficiency of method of moments.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126851556","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}
This paper summarizes the recently developed tunable metamaterials, especially the ferrite inspired magnetic tunable metamaterials. Then a new kind of thermal tunable metamaterial composed of the thermal sensitive metal, the hydrargyrum (Hg), is discussed theoretically and numerically. Lastly, we propose the design rule of wideband tunable metamaterial composed of both the ferrite and the Hg. This paper is aim to open the new route to achieve the new metamaterials with wideband and tunable negative refractive index metamaterials.
{"title":"Wideband Tunable Metamaterials with Magnetic Ferrite and/or Hydrargyrum","authors":"Jian Li, Yongjun Huang, Liang Ma, Zhihao Wu, Guanziun Wen","doi":"10.1109/COMPEM.2018.8496626","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496626","url":null,"abstract":"This paper summarizes the recently developed tunable metamaterials, especially the ferrite inspired magnetic tunable metamaterials. Then a new kind of thermal tunable metamaterial composed of the thermal sensitive metal, the hydrargyrum (Hg), is discussed theoretically and numerically. Lastly, we propose the design rule of wideband tunable metamaterial composed of both the ferrite and the Hg. This paper is aim to open the new route to achieve the new metamaterials with wideband and tunable negative refractive index metamaterials.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115092299","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}
Pub Date : 2018-03-26DOI: 10.1109/COMPEM.2018.8496715
C. Lee, D. Han, H. Park, M. S. Khattak, A. R. Khan, S. Kahng
In this paper, we propose a method to handle the isolation problem of a MIMO antenna for Wi-Fi access point(AP). Firstly, a quasi-Yagi antenna is designed with a transmission-line balun at the feed. Secondly, this conventional quasi-Yagi antenna is adopted for the two closely placed MIMO elements for 2.4 GHz-AP equipment, and the coupling between them is checked. The 180° delay-line of one element is long and next to the feed of the other element, which is an obstacle to the isolation improvement. Hence, the conventional balun is replaced by right and left-handed phase shifters, which take up a much smaller area of the feed and result in improved isolation. In addition, the MIMO radiating elements based on the metamaterial phase-shifters show less inclination of the main beam from the intended direction. The MIMO quasi-Yagi antennas without and with the metamaterial phase-shifter balun are designed, and their return-loss, beam-patterns and isolation curves are compared. Also, the full-wave simulation results are given with the measured ones.
{"title":"Reducing Interference in MIMO Systems Using a Small Metamatrial Balun","authors":"C. Lee, D. Han, H. Park, M. S. Khattak, A. R. Khan, S. Kahng","doi":"10.1109/COMPEM.2018.8496715","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496715","url":null,"abstract":"In this paper, we propose a method to handle the isolation problem of a MIMO antenna for Wi-Fi access point(AP). Firstly, a quasi-Yagi antenna is designed with a transmission-line balun at the feed. Secondly, this conventional quasi-Yagi antenna is adopted for the two closely placed MIMO elements for 2.4 GHz-AP equipment, and the coupling between them is checked. The 180° delay-line of one element is long and next to the feed of the other element, which is an obstacle to the isolation improvement. Hence, the conventional balun is replaced by right and left-handed phase shifters, which take up a much smaller area of the feed and result in improved isolation. In addition, the MIMO radiating elements based on the metamaterial phase-shifters show less inclination of the main beam from the intended direction. The MIMO quasi-Yagi antennas without and with the metamaterial phase-shifter balun are designed, and their return-loss, beam-patterns and isolation curves are compared. Also, the full-wave simulation results are given with the measured ones.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130841450","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}
In this paper, a rectangular dielectric resonator antenna fed by graphene based films is presented. The antenna is compared with traditional metal antenna. The proposed antenna has a wide −10dB impedance bandwidths (3.38GHz-3.57GHz) and high peak gain of 4.52dBi at 3.5GHz in measurement. This suggests that the antenna is suitable for 5G communications at the 3.5GHz band. Radiation patterns around 3.5GHz are also presented. The results show that the proposed antenna will be a good candidate for the traditional metal antenna.
{"title":"Rectangular Dielectric Resonator Antenna Fed by Graphene Films Microstrip for 5G Communication","authors":"Wei Xia, Wenqing Zhou, Jingwei Zhang, Daping He, Chengguo Liu, Z. Wu","doi":"10.1109/COMPEM.2018.8496729","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496729","url":null,"abstract":"In this paper, a rectangular dielectric resonator antenna fed by graphene based films is presented. The antenna is compared with traditional metal antenna. The proposed antenna has a wide −10dB impedance bandwidths (3.38GHz-3.57GHz) and high peak gain of 4.52dBi at 3.5GHz in measurement. This suggests that the antenna is suitable for 5G communications at the 3.5GHz band. Radiation patterns around 3.5GHz are also presented. The results show that the proposed antenna will be a good candidate for the traditional metal antenna.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130432410","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}
Pub Date : 2018-03-26DOI: 10.1109/COMPEM.2018.8496607
Ke Chen, Tianshu Li, Li Cui, Junming Zhao, Yijun Feng
In this paper, metasurfaces with optical transparency is proposed to control either the propagation or the scattering of microwave. Specifically, we have designed a band-pass frequency selective surface (FSS) with a transmission window around 1.6 GHz and a coding metasurface for suppressing the backward scattering with broad working band from 7.8 to 15 GHz. The proposals provide new opportunities to tailor the microwave propagation and scattering with simultaneously high transmittance in visible frequencies, which could offer many benefits in practical uses, such as window and solar panel applications.
{"title":"Manipulating Propagation and Scattering of Microwave by Optically Transparent Metasurface","authors":"Ke Chen, Tianshu Li, Li Cui, Junming Zhao, Yijun Feng","doi":"10.1109/COMPEM.2018.8496607","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496607","url":null,"abstract":"In this paper, metasurfaces with optical transparency is proposed to control either the propagation or the scattering of microwave. Specifically, we have designed a band-pass frequency selective surface (FSS) with a transmission window around 1.6 GHz and a coding metasurface for suppressing the backward scattering with broad working band from 7.8 to 15 GHz. The proposals provide new opportunities to tailor the microwave propagation and scattering with simultaneously high transmittance in visible frequencies, which could offer many benefits in practical uses, such as window and solar panel applications.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130791315","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}
Pub Date : 2018-03-26DOI: 10.1109/COMPEM.2018.8496686
Jiacheng Zhao, Yikai Chen, Shiwen Yang
In this paper, microstrip antenna is analyzed using the theory of characteristic modes (TCMs). Modal weighting coefficient (MWC) under the excitation of plane wave are further calculated. Additional slots are introduced to lower the resonant frequency of scattering modes, which results in smaller modal weighting coefficient in the operation frequency band. Monostatic RCS of the microstrip antenna have a certain degree of reduction.
{"title":"RCS Reduction of Microstrip Antenna Based on Characteristic Mode Analysis","authors":"Jiacheng Zhao, Yikai Chen, Shiwen Yang","doi":"10.1109/COMPEM.2018.8496686","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496686","url":null,"abstract":"In this paper, microstrip antenna is analyzed using the theory of characteristic modes (TCMs). Modal weighting coefficient (MWC) under the excitation of plane wave are further calculated. Additional slots are introduced to lower the resonant frequency of scattering modes, which results in smaller modal weighting coefficient in the operation frequency band. Monostatic RCS of the microstrip antenna have a certain degree of reduction.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123293637","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}
This paper presents the propagation characteristics at 60 GHz for fifth generation (5G) millimeter-wave (mmWave) wireless communication systems. The propagation characteristics of mmWave signal in the indoor radio channels are discussed based on the method of shooting and bouncing ray tracing/image (SBR/IM). Omnidirectional path loss models, received power and root-mean-square (RMS) delay spreads statistics are analyzed in terms of line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios. The results show that the path loss exponent (PLE) values in LOS environments vary between 1.56 and 1.78 and the PLE value is 3.87 in NLOS scenario. The RMS delay spreads values vary between 2.1 ns and 6.6 ns. Furthermore, the normal distribution and the Gaussian distribution models best fit the received power and the RMS delay spreads at 60 GHz, respectively.
{"title":"Simulation and Modeling of Millimeter-Wave Channel at 60 GHz in Indoor Environment for 5G Wireless Communication System","authors":"Shuangde Li, Yuanjian Liu, Leke Lin, Dingming Sun, Shan Yang, X. Sun","doi":"10.1109/COMPEM.2018.8496691","DOIUrl":"https://doi.org/10.1109/COMPEM.2018.8496691","url":null,"abstract":"This paper presents the propagation characteristics at 60 GHz for fifth generation (5G) millimeter-wave (mmWave) wireless communication systems. The propagation characteristics of mmWave signal in the indoor radio channels are discussed based on the method of shooting and bouncing ray tracing/image (SBR/IM). Omnidirectional path loss models, received power and root-mean-square (RMS) delay spreads statistics are analyzed in terms of line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios. The results show that the path loss exponent (PLE) values in LOS environments vary between 1.56 and 1.78 and the PLE value is 3.87 in NLOS scenario. The RMS delay spreads values vary between 2.1 ns and 6.6 ns. Furthermore, the normal distribution and the Gaussian distribution models best fit the received power and the RMS delay spreads at 60 GHz, respectively.","PeriodicalId":221352,"journal":{"name":"2018 IEEE International Conference on Computational Electromagnetics (ICCEM)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124924617","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}
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