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1992 IEEE Microwave Symposium Digest MTT-S最新文献

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UWB radar for ground vehicle self protect 用于地面车辆自保护的超宽带雷达
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.188294
J. Toevs, D. Smith, D. P. Byrne, G. Ross
{"title":"UWB radar for ground vehicle self protect","authors":"J. Toevs, D. Smith, D. P. Byrne, G. Ross","doi":"10.1109/MWSYM.1992.188294","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.188294","url":null,"abstract":"The authors describe the concept of using an impulse ultrawide-band (UWB) radar system to detect, acquire, identify and track incoming armor-piercing rounds which threaten a ground vehicle. Data illustrating the ability of a prototype impulse radar to discriminate between different target shapes are presented. The sensitivity of the CFAR (constant-false-alarm-rate) receiver used with the system appears to be adequate, but ground clutter poses a serious problem. Techniques for discriminating against ground clutter are being explored.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115609305","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: 7
A new evanescent-mode filter for densely packaged waveguide applications 一种用于密集封装波导应用的新型倏逝模滤波器
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.188134
V. Labay, J. Bornemann
{"title":"A new evanescent-mode filter for densely packaged waveguide applications","authors":"V. Labay, J. Bornemann","doi":"10.1109/MWSYM.1992.188134","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.188134","url":null,"abstract":"A novel evanescent-mode filter structure based on T-septum waveguide technology is presented for applications in extremely compact designs. The excellent characteristics of the T-septum waveguide are utilized to significantly reduce the resonator cutoff frequency compared with standard ridge waveguide designs. This allows the evanescent-mode guide to have a smaller cross-section, hence considerably reducing the overall length of the filter. The computer-aided design uses a full-wave mode-matching technique which takes into account higher-order mode coupling at all discontinuities involved. Design data are given for X- and Ka-bands. The method was verified by measurements. The manufactured 10-GHz prototype measured only 18.4 mm in length.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"291 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114400222","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: 7
A comparison of the performance of three different phase locked oscillators fabricated at 21 GHz 三种不同锁相振荡器在21 GHz频率下的性能比较
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.187973
J. Perez, P. Dorta, F. Sierra
{"title":"A comparison of the performance of three different phase locked oscillators fabricated at 21 GHz","authors":"J. Perez, P. Dorta, F. Sierra","doi":"10.1109/MWSYM.1992.187973","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.187973","url":null,"abstract":"The authors describe the construction and fabrication of three different phase-locked oscillators (PLO) at 21 GHz. The first PLO consists of a direct division (analog and digital) from 21 GHz to the reference frequency. The second approach uses only one analog divider to reach 10.5 GHz and then a sampling phase detector. The final one consists of a 10.5-GHz MESFET dielectric resonator oscillator phase-locked by means of a sampling detector and a multiplier (by two). A comparison of analysis, fabrication, and performance of the three PLOs is presented.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115063878","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
Applications of AlN thin-film resonator topologies as antennas and sensors 氮化铝薄膜谐振器拓扑结构在天线和传感器中的应用
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.187934
R. Weber, S. Burns, C. Campbell, R. O'Toole
{"title":"Applications of AlN thin-film resonator topologies as antennas and sensors","authors":"R. Weber, S. Burns, C. Campbell, R. O'Toole","doi":"10.1109/MWSYM.1992.187934","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.187934","url":null,"abstract":"The authors report on two novel microwave applications of thin-film resonator (TFR) technology. The first application is the use of an array of TFRs as an on-wafer, phased-array antenna; the second is a gas and chemical mass sensor with nanogram sensitivity.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116985368","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
Sterile docking using microwave heating 无菌对接采用微波加热
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.188232
K. Carr, R. Grabowy
{"title":"Sterile docking using microwave heating","authors":"K. Carr, R. Grabowy","doi":"10.1109/MWSYM.1992.188232","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.188232","url":null,"abstract":"Peritonitis is the single most limiting factor for patients undergoing continuous ambulatory peritoneal dialysis (CAPD), a treatment associated with end stage renal failure (ESRD). A device which destroys microorganisms that are recognized to be the most problematic in causing peritonitis has been developed. The microwave heating technique showed efficient intraluminal disinfection of CAPD connector pairs. Moist heat has proven to be the most effective technique for disinfecting the inner lumen of commercially available medical connectors. Moist heat using microwave heating has proven to be the most effective and rapid technique. A 10/sup 6/ population reduction of various organisms which are the most prevalent and problematic in causing peritonitis was accomplished with a very short heating cycle. This process is effective due to the rapid heating of the solution contained within the connectors. Since plastic is transparent to microwave heating, the external surface of the plastic connector remains lukewarm during the process.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123219881","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
Losses in GaAs microstrip and coplanar waveguide 砷化镓微带和共面波导的损耗
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.188152
Minya Zhang, Chen Wu, Ke-Li Wu, J. Litva
{"title":"Losses in GaAs microstrip and coplanar waveguide","authors":"Minya Zhang, Chen Wu, Ke-Li Wu, J. Litva","doi":"10.1109/MWSYM.1992.188152","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.188152","url":null,"abstract":"The finite-difference transmission line matrix (FD-TLM) method is applied to loss analysis for microstrip and coplanar waveguides (CPWs). A feature of FD-TLM with a variable mesh size is adopted in this loss analysis. The analysis is validated through a comparison with a frequency domain method. The numerical results provide a clear picture of frequency dependence of losses up to 100 GHz for microstrip and coplanar waveguides.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123595477","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: 9
Direct use of a MESFET physical model, in nonlinear CAD 直接使用MESFET的物理模型，在非线性CAD中
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.188319
P.J.C. Rodrigues, Michael J. Howes, J. R. Richardson
{"title":"Direct use of a MESFET physical model, in nonlinear CAD","authors":"P.J.C. Rodrigues, Michael J. Howes, J. R. Richardson","doi":"10.1109/MWSYM.1992.188319","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.188319","url":null,"abstract":"The authors present a CAD (computer-aided design) tool which combines a novel quasi-two-dimensional MESFET physical model with an efficient nonlinear circuit analysis technique. Device technological parameters (dimensions, doping profile, etc.) can be directly related to electrical performance with this tool, which can therefore be used in nonlinear circuit yield study and optimization. An excellent agreement between simulated and measured results was obtained.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"61 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120865274","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
Novel 36 GHz GaAs frequency doublers using (M)MIC coplanar technology 采用(M)MIC共面技术的新型36ghz GaAs倍频器
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.188204
M.A. Tuko, I. Wolff
{"title":"Novel 36 GHz GaAs frequency doublers using (M)MIC coplanar technology","authors":"M.A. Tuko, I. Wolff","doi":"10.1109/MWSYM.1992.188204","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.188204","url":null,"abstract":"The design and performance of single-device and balanced versions of (M)MIC (microwave and monolithic microwave integrated circuit) GaAs FET frequency doublers from 18 GHz to 36 GHz, fabricated in purely CPW techniques, are presented. Coplanar discontinuities which are usually neglected are taken into consideration in the analysis and design. Spiral inductors and their associated parasitic capacitances are used for impedance matching and phase shifting purposes. Simulation and measurement results are in good agreement. The investigated doublers have a minimum conversion loss of 7 dB.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124503728","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: 10
Modeling of nonlinear dispersive active elements, in TLM TLM中非线性色散有源单元的建模
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.188218
B. Isele, P. Russer
{"title":"Modeling of nonlinear dispersive active elements, in TLM","authors":"B. Isele, P. Russer","doi":"10.1109/MWSYM.1992.188218","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.188218","url":null,"abstract":"The transmission line matrix (TLM) method is used for modeling of distributed active nonlinear domains, embedded in planar microwave circuits. In this approach the nonlinearities are described by lumped elements connected to the nodes of a resistive TLM network. With this approach the transient as well as the steady-state behavior of nonlinear distributed active elements can be evaluated. The model of a distributed semiconductor diode is discussed. The distributed barrier is modeled by a resistive region. The physical cutoff characteristics of the semiconducting region are considered by lumped capacitors included in the TLM network. For an oscillator with a distributed diode, the time history and the field contribution at different instants of time are given.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127265850","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
Exact group delay sensitivities for minimization of delay and distortion in high-speed VLSI interconnects 精确的群延迟灵敏度，使高速VLSI互连中的延迟和失真最小化
1992 IEEE Microwave Symposium Digest MTT-S Pub Date : 1992-06-01 DOI: 10.1109/MWSYM.1992.188117
R. Liu, Q. Zhang, M. Nakhla
{"title":"Exact group delay sensitivities for minimization of delay and distortion in high-speed VLSI interconnects","authors":"R. Liu, Q. Zhang, M. Nakhla","doi":"10.1109/MWSYM.1992.188117","DOIUrl":"https://doi.org/10.1109/MWSYM.1992.188117","url":null,"abstract":"The authors present an alternative approach to minimization of transient responses such as delay, distortion and crosstalk by using frequency domain information such as group delay. A technique for efficient computation of exact group delay and its sensitivities is derived for multiconductor transmission line networks. The group delay information is combined with gradient-based minimax optimization to minimize delay and distortion in high-speed VLSI interconnects.<<ETX>>","PeriodicalId":165665,"journal":{"name":"1992 IEEE Microwave Symposium Digest MTT-S","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127294793","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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