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A wideband model for high density ball-grid array packages for very high speed digital circuits 用于超高速数字电路的高密度球栅阵列封装的宽带模型
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851748
B. Yassini, S. Safavi-Naeini, T. Manku
{"title":"A wideband model for high density ball-grid array packages for very high speed digital circuits","authors":"B. Yassini, S. Safavi-Naeini, T. Manku","doi":"10.1109/ANTEM.2000.7851748","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851748","url":null,"abstract":"This paper presents an efficient method for modeling of interconnecting circuit in Super Ball Grid Array (SBGA) packages. The model is based on physical segmentation and electromagnetic (EM) analysis of each segment. An equivalent circuit model based on EM analysis is developed for each segment and connecting individual segment models completes the final model. For verification and calibration the scattering parameters of the resulting model is first compared with EM analysis of important substructure and also with experimental data from a test package. Initial results show good agreement with measurement up to 15GHz‥","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130956581","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: 5
Reflector feed optimization for two widely separated bands 两个广泛分离波段的反射器馈电优化
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851700
S. Noghanian, L. Shafai
{"title":"Reflector feed optimization for two widely separated bands","authors":"S. Noghanian, L. Shafai","doi":"10.1109/ANTEM.2000.7851700","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851700","url":null,"abstract":"Circular waveguide can provide low cross polarization and good circular polarization as a reflector feed. By adding a corrugated flange to the antenna one can improve the radiation characteristics, but this improvement only happens at the centre frequency and deteriorates these characteristics at other frequencies. In this work it was shown that by adding a step to the structure the radiation characteristics will become closer for two widely separated frequencies.","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133150216","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
On numerical efficiency of the Method of Analitical Regularization 论解析正则化方法的数值效率
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851728
O. Sulima
{"title":"On numerical efficiency of the Method of Analitical Regularization","authors":"O. Sulima","doi":"10.1109/ANTEM.2000.7851728","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851728","url":null,"abstract":"Presented results shows that the MAR provides less time costly and memory consuming algorithm for solving problems of scattering of H polarized waves by unclosed (infinitely thin) and closed smooth contours.","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116477505","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
Radiation susceptibility modeling of passive PCBs using the complex images method 基于复图像法的无源多氯联苯辐射敏感性建模
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851644
A. Badawi, A. Sebak
{"title":"Radiation susceptibility modeling of passive PCBs using the complex images method","authors":"A. Badawi, A. Sebak","doi":"10.1109/ANTEM.2000.7851644","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851644","url":null,"abstract":"We have presented the usage of a full-wave electromagnetic numerical analysis tool to study radiation susceptibility of passive PCBs. The numerical tool uses a mixed potential integral equation combined with the efficient and accurate CIM. The MoM solution adopted is particularly efficient for analyzing radiation susceptibility, since the impedance matrix associated with the PCB does not have to be recalculated for different orientation or polarization of the incident field. Although the shown results are preliminary, the potential for using the tool towards more elaborate geometries and magnitudes of the incident fields is shown. Further results will be incorporated in the presentation.","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116524298","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
New closed form expressions for calculating the magnetic field of thin conductors with longitudinal current direction introduction 引入纵向电流的薄导体磁场计算的新封闭形式表达式
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851643
S. Babic, C. Akyel, M. Gavrilovic
{"title":"New closed form expressions for calculating the magnetic field of thin conductors with longitudinal current direction introduction","authors":"S. Babic, C. Akyel, M. Gavrilovic","doi":"10.1109/ANTEM.2000.7851643","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851643","url":null,"abstract":"In this paper, we present relatively simple expressions in the analytical form in order to calculate the magnetic fields of thin cylindrical finite conductors with current in longitudinal direction. The derivation presented here can be employed usefully to calculate the magnetic fields in more complicated geometries. They may also be used for computation of self and mutual inductances for systems with thin conductors [9]. The reduction of the mathematical complexity based on the above expressions makes it desirable for calculation of magnetic fields in various problems. The expressions, obtained in the analytical form, allow easy solving of fields at singular locations. The presented method can be simply applied to derive expressions for the computation of magnetic fields of various thin conductors with the current flow in the longitudinal directions, and whose angular lengths are arbitrary. In this case, all mathematical procedures will be expressed over incomplete elliptic functions of the first, second, and third kinds [8].","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132230717","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
Lumped-element models for multiple vias in stripline structures including the parallel plate noise 考虑平行板噪声的带状线结构多通孔的集总元模型
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851640
R. Abhari, G. Eleftheriades
{"title":"Lumped-element models for multiple vias in stripline structures including the parallel plate noise","authors":"R. Abhari, G. Eleftheriades","doi":"10.1109/ANTEM.2000.7851640","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851640","url":null,"abstract":"Self-consistent lumped-element circuits for single and multiple vias in stripline structures are presented in this paper. These models include the interactive loading of the parallel plates to the signal lines and predict the ground plane noise with high accuracy. Because the proposed models are one-dimensional networks, the simulation time is on the order of only a few seconds on an ULTRA 5 SUN workstation as opposed to hours for popular fullwave analysis methods such as FDTD.","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132899997","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
Numerical implementation of an efficient recursive algorithm for electromagnetic wave scattering by complex objects 复杂物体电磁波散射的有效递归算法的数值实现
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851729
D. Swatek, I. Ciric
{"title":"Numerical implementation of an efficient recursive algorithm for electromagnetic wave scattering by complex objects","authors":"D. Swatek, I. Ciric","doi":"10.1109/ANTEM.2000.7851729","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851729","url":null,"abstract":"The numerical implementation of an efficient single source surface integral equation algorithm for the problem of electromagnetic wave scattering by complex structures is discussed. Its salient features include the invariance of an equivalent surface representation and the recursive region-by-region solution algorithm.","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133456516","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
Performance comparison of TLM, FDTD and Haar wavelet MRTD algorithms for electromagnetic simulations TLM、FDTD和Haar小波MRTD算法在电磁仿真中的性能比较
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851681
E. Hu, P. So, M. Fujii, W. Liu, W. Hoefer
{"title":"Performance comparison of TLM, FDTD and Haar wavelet MRTD algorithms for electromagnetic simulations","authors":"E. Hu, P. So, M. Fujii, W. Liu, W. Hoefer","doi":"10.1109/ANTEM.2000.7851681","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851681","url":null,"abstract":"The performance in computation time, computer memory and computation accuracy of the TLM, FDTD, 0-0rder and 1st-Order Haar wavelet MR.TD algorithms have been tested. The results show: (1) The FDTD algorithm is about 1.25 times as fast as TLM. The CPU runtimes for the 0- and 1st-Order MR.TD are almost the same as that of FDTD although much less time steps are required in the 0- and 1st-Order MRTD for the same time duration. The CPU runtimes linearly vary with the time step. Thus the CPU runtime of each algorithm is mainly determined by the number of variables that must be retrieved from, and stored in memory at each time step; (2) Because of the numerical comparison and memory reallocation in each time step, thresholding greatly increases computing load; (3) The 1st-Order Haar wavelet MRTD can save much more memory. The optimal relative threshold fraction is about 0.01 % and large memory savings are attainable while maintaining reasonable accuracy. But the CPU runtimes are too long for the 0-0rder and 1st-Order MRTD with thresholding technique. Thus the tradeoff between computational efficiency and memory saving should be taken into consideration. An optimum procedure and well-designed data structures are necessary to ensure that memory requirements are kept at a minimum while maintaining computational efficiency at the same time.","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121859522","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
Design and implementation of a 2-GHz active integrated antenna 2ghz有源集成天线的设计与实现
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851668
H. El-Motaafy, E. El-Badawy, S. H. Ibrahim
{"title":"Design and implementation of a 2-GHz active integrated antenna","authors":"H. El-Motaafy, E. El-Badawy, S. H. Ibrahim","doi":"10.1109/ANTEM.2000.7851668","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851668","url":null,"abstract":"This paper presents the design and implementation of a 2-GHz active integrated antenna module. The module comprises a microwave amplifier and a microstrip antenna array. The array comprises two microstrip patch antennas. The module is implemented using the microstrip-line technology. It gives a satisfactory performance. This module can be used in many applications such as active and semi-active seekers, satellite communication, radio altimeters, missile technology, weapon fuzing, manpack equipment, remote sensing, and biomedical radiators.","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123495753","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
Annular slot fed cavity antenna 环形槽馈电腔天线
Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000] Pub Date : 2000-07-01 DOI: 10.1109/ANTEM.2000.7851699
S. Noghanian, L. Shafai
{"title":"Annular slot fed cavity antenna","authors":"S. Noghanian, L. Shafai","doi":"10.1109/ANTEM.2000.7851699","DOIUrl":"https://doi.org/10.1109/ANTEM.2000.7851699","url":null,"abstract":"Annular slot antenna is a good planar antenna, but the side lobe level in E-plane is very high and aperture efficiency is lower than 30%. It was shown that by modifying the antenna structure and adding a dielectric radome and conductor ring above the slot, the radiation characteristics will improve significantly. A new structure of combination of annular slot antenna and microstrip patches inside an open cavity is introduced which can be optimized to reduce the amount of back radiation. By changing the dimension of patches, one can equalize the radiation patterns in the two principle planes.","PeriodicalId":416991,"journal":{"name":"Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2000]","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129295279","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
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