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1998 Symposium on Antenna Technology and Applied Electromagnetics最新文献

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Application of a reduced-order model to transmission line analysis 降阶模型在输电线路分析中的应用
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861734
L. Li, I. Ciric
{"title":"Application of a reduced-order model to transmission line analysis","authors":"L. Li, I. Ciric","doi":"10.1109/ANTEM.1998.7861734","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861734","url":null,"abstract":"Systems with transmission lines and lumped linear elements are commonly used for modeling interconnections on integrated circuits, printed circuit boards, and multichip modules. Conventionally, the transmission lines are characterized by distributed parameters determined on the basis of a quasi-TEM approximation. With rapid increase in operating frequencies, distributed parameter models for interconnects are no longer adequate and electromagnetic field models that take into account all possible field components are needed to accurately analyze signal propagation. However, the solution of electromagnetic problems based on these more complex models using traditional techniques generally involves high computational cost. To circumvent this difficulty, a reduced-order model technique employing the asymptotic waveform evaluation (AWE) [1],[2] has recently been developed. The AWE is a moment-matching method where the s-domain transfer function of a linear system is approximated by using a reduced-order model function containing only a relative small number of dominant poles and residues. The resultant reduced-order model can be used to compute the time-domain and frequency-domain responses of the system in an efficient manner. In this paper, we utilize a reduced-order model technique to compute the transient response of hybrid systems containing both transmission lines and lumped linear elements. By taking into account the effect of the lumped elements into Maxwell's equations, we present a frequency-domain analysis of the entire hybrid system comprising lumped elements and transmission lines by using an electromagnetic field model, instead of treating various components separately by different techniques. This way, a global solution for hybrid systems can be obtained efficiently. Numerical examples of the proposed method are presented.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132500298","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
Power handling capability of a HTS microstrip line structure with gilded edges 镀金边缘高温超导微带线结构的功率处理能力
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861781
H. Tang, S. Safavi-Naeini, Y. Chow
{"title":"Power handling capability of a HTS microstrip line structure with gilded edges","authors":"H. Tang, S. Safavi-Naeini, Y. Chow","doi":"10.1109/ANTEM.1998.7861781","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861781","url":null,"abstract":"A high temperature superconductor (HTS) microstrip line structure with gilded edges is proposed for improving its power handling capability based on a specified limit of harmonic generation. In this microstrip line structure two narrow and thin gold strips, which have a regular constant (linear) resistivity, are added (gilded) on the edges of the top surface of the HTS strip. A general modeling approach is used. The approach includes the moment method, the multi-port network theory, and the harmonic balance technique. Harmonic power generation and conductor loss are presented.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132717753","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
Noncontact internal probing of microwave integrated circuits 微波集成电路的非接触式内部探测
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861747
D. Noruttun, S. Cheung, L. Shafai, G. Bridges
{"title":"Noncontact internal probing of microwave integrated circuits","authors":"D. Noruttun, S. Cheung, L. Shafai, G. Bridges","doi":"10.1109/ANTEM.1998.7861747","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861747","url":null,"abstract":"A non-contact probing technique for non-invasively performing vector voltage measurements at the internal points of an operating microwave integrated circuit is presented. The internal voltage amplitude and phase are extracted by sensing the localized electrostatic force between a miniature probe and point in the circuit being measured. A force nulling approach allows accurate high frequency voltage measurements to be performed on without the need for complex calibration and on passivated circuits. The non-contact probe introduces a loading of less than 1fF at the test point.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133880415","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
Radio propagation data pertinent to the design of LMCS systems at 28 GHz 与28ghz LMCS系统设计相关的无线电传播数据
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861680
R. Bultitude, P. Hou, R. Hahn, G. Hendrantoro, D. Falconer, R. Berube
{"title":"Radio propagation data pertinent to the design of LMCS systems at 28 GHz","authors":"R. Bultitude, P. Hou, R. Hahn, G. Hendrantoro, D. Falconer, R. Berube","doi":"10.1109/ANTEM.1998.7861680","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861680","url":null,"abstract":"This paper reports work in progress on the analysis of radio propagation data measured at 28.5 GHz and 29.5 GHz in a suburban-type residential area in Ottawa. Both CW and wideband measurements were made in several radio propagation surveys. Issues discussed include: propagation loss in cluttered environments; cumulative probability distributions (CDFs) for excess loss; cross polarisation isolation, and temporal dispersion caused by multipath propagation.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130308245","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
Error detection in printed arrays using near field measurements 使用近场测量的印刷阵列错误检测
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861666
A. Badawi, L. Shafai, D. Gray, C. Ravipati
{"title":"Error detection in printed arrays using near field measurements","authors":"A. Badawi, L. Shafai, D. Gray, C. Ravipati","doi":"10.1109/ANTEM.1998.7861666","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861666","url":null,"abstract":"Errors in planar printed arrays can be detected using a near field measurement system. The antenna is mounted 5 wavelengths away from the probe. The measured data at that distance is used to reconstruct the aperture field, hence the near field probe is accurately used to identify faults in the aperture distribution or failures in any of the arrays elements. The measured data does not suffer from interaction or coupling between the antenna and the probe.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123783804","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
Modeling dielectric waveguiding structures with the method of lines 用线形法模拟介质波导结构
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861671
P. Berini, K. Wu
{"title":"Modeling dielectric waveguiding structures with the method of lines","authors":"P. Berini, K. Wu","doi":"10.1109/ANTEM.1998.7861671","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861671","url":null,"abstract":"This paper discusses the method of lines and its application for generating the 2-D spatial distribution of vectorial mode fields supported by inhomogeneous waveguiding structures. Our formulation has been validated by comparing computed field distributions and mode wave impedances with analytic solutions and numerical results obtained from the literature when available. A complete analysis of an optical dielectric waveguiding structure is given along with an assessment of the accuracy of our technique.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127096373","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
Analysis and design software for radial slot antennas 径向缝隙天线分析与设计软件
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861681
M. S. Castañer, Juan R. Rey-Gómez, M. V. Isasa, Manuel Sierra Pérez, J.A. García-Hidalgo
{"title":"Analysis and design software for radial slot antennas","authors":"M. S. Castañer, Juan R. Rey-Gómez, M. V. Isasa, Manuel Sierra Pérez, J.A. García-Hidalgo","doi":"10.1109/ANTEM.1998.7861681","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861681","url":null,"abstract":"A software for the analysis and design of radial slot antennas excited by one or several coaxial probes is presented. This tool has two main different blocks: analysis and design. The software has been improved with a file input/output options and a graphic display of radiation patterns, impedance, directivity and other antenna parameters. Everything is compiled in C++ for Windows. The second part of the paper includes some designs and results.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127871200","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
Analysis of a slot-coupled microstrip line coupler with finite size substrates using surface equivalence principle and multiple network theory (SEMN) 基于表面等效原理和多网络理论的有限尺寸衬底缝隙耦合微带线耦合器分析
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861783
F. Tavakkol-Hamedani, A. Tavakoli
{"title":"Analysis of a slot-coupled microstrip line coupler with finite size substrates using surface equivalence principle and multiple network theory (SEMN)","authors":"F. Tavakkol-Hamedani, A. Tavakoli","doi":"10.1109/ANTEM.1998.7861783","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861783","url":null,"abstract":"Two slot-coupled microstrip lines each with a finite size substrate are located on a distinct side of a large ground plane. They are analyzed using surface equivalence principle and multiple network theory (SEMN). Four-port scattering parameters are calculated and compared with experimental measurements which exhibit good comparison. This analysis is also used to model a slot fed microstrip antenna.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126719782","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 novel technique for beam squint cancellation in planar reflectors 一种消除平面反射器光束斜视的新技术
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861770
J. Shaker, M. Cuhaci
{"title":"A novel technique for beam squint cancellation in planar reflectors","authors":"J. Shaker, M. Cuhaci","doi":"10.1109/ANTEM.1998.7861770","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861770","url":null,"abstract":"Due to the frequency dependence of phasing mechanisms applied in planar printed reflectors, such antennas are prone to beam squint as the frequency is scanned within the operating band. A novel technique is introduced in this paper to cancel the beam squint due to frequency sweep. Another reflector is used to cancel the beam squint within the operating band. The results are compared with the beam squint of a conventional planar reflector in order to demonstrate the effectiveness of the suggested technique.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126937618","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
Site-specific modelling of indoor radio wave propagation 室内无线电波传播的特定地点模型
1998 Symposium on Antenna Technology and Applied Electromagnetics Pub Date : 1998-08-01 DOI: 10.1109/ANTEM.1998.7861793
Yufei Wang, S. Safavi-Naeini, S. Chaudhuri
{"title":"Site-specific modelling of indoor radio wave propagation","authors":"Yufei Wang, S. Safavi-Naeini, S. Chaudhuri","doi":"10.1109/ANTEM.1998.7861793","DOIUrl":"https://doi.org/10.1109/ANTEM.1998.7861793","url":null,"abstract":"Design of wireless communication systems inside buildings requires accurate site-specific characterization of indoor radio channel. In the complicated indoor communication environment, transmitting and receiving antennas are often inevitably installed close to wall corners, edges and other complex lossy scatters, where exact solution to scattering field distribution is not available. Channel models based on simplified radio propagation theories make it impossible to study effects of these generic structural features. On the other hand, application of accurate numerical analysis method to the entire modelling area is neither practical because of the computation resource required, nor is it necessary for wide open area without many indoor objects.","PeriodicalId":334204,"journal":{"name":"1998 Symposium on Antenna Technology and Applied Electromagnetics","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114991104","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: 14
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