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1990 20th European Microwave Conference最新文献

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On the Design of MESFET Harmonic Injection Frequency Dividers using the Harmonic Balance Tehcnique 基于谐波平衡技术的MESFET谐波注入分频器设计
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336321
P. Dorta, Jorge Perez
{"title":"On the Design of MESFET Harmonic Injection Frequency Dividers using the Harmonic Balance Tehcnique","authors":"P. Dorta, Jorge Perez","doi":"10.1109/EUMA.1990.336321","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336321","url":null,"abstract":"In this paper we present a design approach for harmonic injection frequency dividers using the harmonic balance technique. This way we have obtained the optimum match loads and bias point for a MESFET device when used as a divider. Then we have implemented the passive network and calculated the device's describing function (TSIDF) to find the divider solutions. By means of the incremental functions (TSIIDF) we could separate the stable solutions from the non-stable and determine the locking range.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130696410","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: 3
Integrated Microwave Doppler Cinemometer 集成微波多普勒电影计
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336156
J. Vindevoghel, M. El Bekkali, P. Descamps, E. Constant
{"title":"Integrated Microwave Doppler Cinemometer","authors":"J. Vindevoghel, M. El Bekkali, P. Descamps, E. Constant","doi":"10.1109/EUMA.1990.336156","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336156","url":null,"abstract":"The whole automation of the driving of terrestrial vehicles requires to know at any time with the highest accuracy the values of the instantaneous speed and the distance covered by the vehicle ; moreover, it is also necessary to know the sign of the speed-vector. Each of these parameters is obtained from the microwave Doppler cinemometer described hereafter. The microwave part of the cinemometer including an X band oscillator, a phase-shifter, power-dividers, circulators, mixers and detectors is a M.I.C. and should be changed in a GaAs built-on M.M.I.C..","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131145387","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
A Novel Wideband MMIC Active Balun 一种新型宽带MMIC有源平衡器
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336079
I. Robertson, A. Aghvami
{"title":"A Novel Wideband MMIC Active Balun","authors":"I. Robertson, A. Aghvami","doi":"10.1109/EUMA.1990.336079","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336079","url":null,"abstract":"A new technique for realising active baluns has been demonstrated in MMIC form. The circuit uses distributed matching techniques and is capable of covering an extremely wide frequency range. An MMIC prototype has been designed and tested, and balun operation over 1 to 12 GHz has been achieved. This paper describes the circuit operation, design and measured results.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"181 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133356199","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
A New Method of Measurements of All Complex Permeability Tensor Components of Microwave Ferrites using One Cylindrical Ferrite Sample 用一个圆柱形铁氧体样品测量微波铁氧体所有复磁导率张量分量的新方法
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336093
J. Krupka
{"title":"A New Method of Measurements of All Complex Permeability Tensor Components of Microwave Ferrites using One Cylindrical Ferrite Sample","authors":"J. Krupka","doi":"10.1109/EUMA.1990.336093","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336093","url":null,"abstract":"A new msthod of measurements of all complex permeability tensor components of microwave ferrites, using one cylindrical ferrite sample is presented. Two dielectric ring resonators having the same heights and internal diameters but different external diameters operating on HE± 111 and H011 modes respectively are applied for measurements. Permeability tensor components are computed from the measured resonant frequencies and Q-factors of these resonators with and within ferrite sample. Computations are based on the exact eigenvalue equations for this modes.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133525270","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
The Convolution Applied on the Synthesis Shaped Beam 卷积在合成异形梁上的应用
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336278
F. Ares, E. Moreno
{"title":"The Convolution Applied on the Synthesis Shaped Beam","authors":"F. Ares, E. Moreno","doi":"10.1109/EUMA.1990.336278","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336278","url":null,"abstract":"We present an efficient and flexible method for the optimal synthesis of shaped beam linear array. The technique is based on the convolution of the desired pattern and a scanning function. The amplitude of the ripple in the shaped region and the height of the sidelobes in the nonshaped region are controlled. The shaped pattern is produced by a pure real distribution. Several computer examples, with low ratio of maximum to minimum current excitation, are presented. A comparative study with method of Elliott is realiced.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133311778","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
Toward Complexity: Trends in Electromagnetic Wave Theory 走向复杂性:电磁波理论的发展趋势
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336166
L. Felsen
{"title":"Toward Complexity: Trends in Electromagnetic Wave Theory","authors":"L. Felsen","doi":"10.1109/EUMA.1990.336166","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336166","url":null,"abstract":"Large scale computing has made it possible to study electromagnetic wave interaction with natural and manmade environments of substantial complexity, granting quantitative access to problems that could not be reached by purely analytical methods. This circumstance has stimulated debate within the academic, research and applicational communities concerning the role, if any, of analysis for dealing with complexity. If there is such a role, it must be toward furnishing physical insight into the wave phenomena, i.e. the \"observables\", which produce the numerically calculated signal. Some suggestions are made toward classifying complexity according to different scales in the configurational and spectral (i.e. phase space) domains. This requires intimate coupling of propagation phenomena and signal processing. As yet, there are more questions than answers, both technically and philosophically.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128897449","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
Reconfiguration Switch Matrix for Use on Board the Data Relay System Satellites 数据中继系统卫星上的重配置开关矩阵
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336305
A. Khilla, A. D. Hall, A. Born
{"title":"Reconfiguration Switch Matrix for Use on Board the Data Relay System Satellites","authors":"A. Khilla, A. D. Hall, A. Born","doi":"10.1109/EUMA.1990.336305","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336305","url":null,"abstract":"The increasing Low Earth Orbit (LEO) Spacecraft traffic and mission data communication requirements necessitates an increase in the real-time ground segment communication capability per orbit. The European Space Agency (ESA) Data Relay Satellite System (DRSS), consisting of three geo-stationary satellites, is thus seen to improve LEO spacecraft ground segment communications. In order to achieve the required frequency flexibility and interconnectivity in the DRSS, Reconfiguration Switch Matrices are required to switch incoming IF signals (from downconverters) to the appropriate upconverters and transmitters. This paper presents the feasibility study, design and manufacture of a redundant, 8×8 RSM at 5.5GHz for use on board the DRSS. The RSM includes the Microwave Switch Matrix (MSM) and the Distribution Control Unit (DCU). Several MSM architectures were identified, two of which could satisfy the system requirements for isolation and non-interruptive reconfiguration. These were analysed for optimum performance before appropriate selection, design and manufacture. The switch elements required custom designed switched amplifiers, in GaAs MMIC technology, for space and weight saving purposes. These MMIC's were custom designed in order to maximise the isolation and minimise the power consumption and biasing requirements. Various DCU configurations were compared, with regard to Telecommand (TC) word format, Telemetry (TM) and monitoring and then designed. Finally, the RSM mechanical structure was designed for a minimum size and weight realisation. This design allows for modular 8×8 MSM expansion or redundant contraction (e.g. 4×4 Redundant).","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115631402","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
A Method for the Development of Monolithical Integrated Resonators on GaAs with Increased Q-Factor 在增加q因子的GaAs上开发单片集成谐振器的方法
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336190
B. Roth, J. Borkes, M. Joseph, A. Beyer
{"title":"A Method for the Development of Monolithical Integrated Resonators on GaAs with Increased Q-Factor","authors":"B. Roth, J. Borkes, M. Joseph, A. Beyer","doi":"10.1109/EUMA.1990.336190","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336190","url":null,"abstract":"In this paper a type of resonator is proposed, which is usable in monolithical integrated microwave circuits on GaAs, whenever a better Q-factor is required as can be delivered from lumped element resonant circuits. The resonators presented here are calculated with the help of an universal automatic field-theoretical program, basing on the numerical evaluation of orthogonal-raw expansion. From the results of the field theoretical calculations the elements of the equivalent circuits have been determined. The Q-factor of the resonator has been improved by removing the GaAs substrate in the environment close to the resonator by means of reactive ion-etching. The applicability of the explained techniques has been proved by measurements.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123894759","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: 3
Analysis of the Symmetric Y-Junction in Slotline 槽线上对称y型结的分析
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336243
T. Rozzi, F. Moglie, A. Morini, E. Marchionna
{"title":"Analysis of the Symmetric Y-Junction in Slotline","authors":"T. Rozzi, F. Moglie, A. Morini, E. Marchionna","doi":"10.1109/EUMA.1990.336243","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336243","url":null,"abstract":"Millimetric circuitry in slotline uses Y-junctions, e.g. in diode mounts for mixers and power splitters. This work presents an effective approximate treatment of the problem, that exploits in full its symmetry (eigenvalues analysis) and utilizes partial wave analysis for an effective solution of the resulting boundary value problem, including radiation loss and junction parasitics.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124006595","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
Ferrite Rod Gratings at Millimetre Waves 毫米波下的铁氧体棒栅
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336260
V. V. Meriakri, I. P. Nikitin, M. Parkhomenko, A. Sivov, A. Shatrov
{"title":"Ferrite Rod Gratings at Millimetre Waves","authors":"V. V. Meriakri, I. P. Nikitin, M. Parkhomenko, A. Sivov, A. Shatrov","doi":"10.1109/EUMA.1990.336260","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336260","url":null,"abstract":"A plane wave transmission and reflection by ferrite rod grating have been considered both theoretically and experimentally. The frequency dependence of transmission and reflection has resonant character and can be effectively controlled by magnetic field applied to the grating.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125052433","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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