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1976 6th European Microwave Conference最新文献

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Performance of Some GaAs Mesfet Mixers 一些GaAs Mesfet混频器的性能
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332236
P. Harrop, R. Dessert, P. Baudet
{"title":"Performance of Some GaAs Mesfet Mixers","authors":"P. Harrop, R. Dessert, P. Baudet","doi":"10.1109/EUMA.1976.332236","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332236","url":null,"abstract":"The performance of MESFET mixers used as down-converters from frequencies around 8 GHz to an intermediate frequency of 1 GHz is presented. Several possible mixer configurations have been considered and preliminary results are described involving the use of the MESFET in single as well as double device circuits. Experimental results concern the devices single sideband. noise figures and associated values of small signal conversion gain. Large signal saturation is discussed and results of third order intermodulation product are described. A single sideband noise figure of 7.8 dB associate with a gain of 8 dB at 7 GHz has been measured from a mixer using a single transistor.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124143823","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
Printed Circuit Radio Link Antenna 印刷电路无线电链路天线
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332286
M. Tiuri, J. Henriksson, S. Tallqvist
{"title":"Printed Circuit Radio Link Antenna","authors":"M. Tiuri, J. Henriksson, S. Tallqvist","doi":"10.1109/EUMA.1976.332286","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332286","url":null,"abstract":"A printed circuit antenna which substitutes a paraboloid antenna in radio link applications at 1.8 GHz has been developed. The antenna is a novel traveling wave antenna, a so called grid antenna. It consists of a ground plane close to which is a printed sheet with several pairs of meander lines. The lines are fed in parallel from a coaxial line causing a TEM-wave to propagate along the lines. The parts of the lines which are parallel to the antenna axis radiate in phase while the radiation from the perpendicular parts is cancelled due to the currents flowing in opposite directions. The size of the realized antenna is 1.5 m × 1.5 m × 0.09 m. It has the advantages of being flat and thin and easy to manufacture. The measured gain at the frequency range 1700...1900 MHzis 24...26 dB and the beam width 8°. The direction of the beam depends slightly on frequency.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131045444","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
High Conversion Efficiency Frequency Multiplier Using GaAs Avalanche Diodes 采用砷化镓雪崩二极管的高转换效率倍频器
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332360
B.M. Kramerr, A. Derycke, C. Masse, P. Rolland
{"title":"High Conversion Efficiency Frequency Multiplier Using GaAs Avalanche Diodes","authors":"B.M. Kramerr, A. Derycke, C. Masse, P. Rolland","doi":"10.1109/EUMA.1976.332360","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332360","url":null,"abstract":"GaAs avalanche diodes for multiplication have been studied from 3 different points of view: theoretical, technological and circuit design, in order to obtain high efficiencies in the mm waveband. The GaAs diode design is explained and compared to that of Si diodes. The technology is then described and the importance of the idler impedances at the second and third harmonics is stressed. The best results are presented : conversion loss of 6 dB with 400 mW at 4 GHz to 100 mW at 32 GHz with 1.5 W D.C. power applied. Finally, the experimental results are compared to those predicted by a computer simulation, of the diodes impedances which were measured either by a substition method or by a new technique (1).","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124574576","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
Propagation in the Ferrite Micros Trip Magnetized Perpendicularly to the Ground Plane 垂直于地平面磁化的铁氧体微行程中的传播
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332335
J. Mazur
{"title":"Propagation in the Ferrite Micros Trip Magnetized Perpendicularly to the Ground Plane","authors":"J. Mazur","doi":"10.1109/EUMA.1976.332335","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332335","url":null,"abstract":"The Fourier method of the dielectric micros trip line analysis proposed by Denlinger [1] is extended for the ferrite microstrip line case. After introduction of the fringing and edge mode effects, the logitudinal and transverse current distributions on the strip were used for solving the problem. The characteristic equation describing the fundamental edge hybrid mode is derived. Some experiments performed for the verification of the theoretical results are presented.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123021974","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 New Principle for Measuring Electrical Length and Deviation from Linear Phase 一种测量电长度和线性相位偏差的新原理
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332273
Hugo Vifian
{"title":"A New Principle for Measuring Electrical Length and Deviation from Linear Phase","authors":"Hugo Vifian","doi":"10.1109/EUMA.1976.332273","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332273","url":null,"abstract":"This paper presents a unique way to measure the equivalent electrical length of a network as well as its deviation from linear phase. The measurement technique used is based upon a variable length transmission line simulator, built into the IF-structure of a 1.3 GHz Network Analyzer, but can be applied to higher frequencies. The new method allows to insert much more electrical length than the mechanical line stretchers do, without disturbing the measurement with additional mismatch errors. In addition to a calibrated readout of the equivalent electrical length in meters, the deviations from linear phase of a network can be presented very accurately in a real time swept display.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133347621","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
Ti : LiNbO3 Electrooptical Active Components for Integrated Optics 集成光学用Ti: LiNbO3电光有源元件
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332311
M. Papuchon
{"title":"Ti : LiNbO3 Electrooptical Active Components for Integrated Optics","authors":"M. Papuchon","doi":"10.1109/EUMA.1976.332311","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332311","url":null,"abstract":"In this paper we shall present the results obtained at Thomson-CSF in the. realization of active electrooptical components using the diffusion of Titanium in LiNb03 Crystals. We shall discuss in details the switching problem and in particular the conditions required to obtain good switching efficiency and the different configurations that can be used. Recent experimental results concerning the directional coupler switch with different configurations will be given.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121829461","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
Dielectric Measurements and Automatic Control of Materials Heated Inside Microwave Ovens 微波加热材料的介电测量与自动控制
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332270
R. Bosisio, R. Dallaire, P. Promathansy
{"title":"Dielectric Measurements and Automatic Control of Materials Heated Inside Microwave Ovens","authors":"R. Bosisio, R. Dallaire, P. Promathansy","doi":"10.1109/EUMA.1976.332270","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332270","url":null,"abstract":"Preliminary results obtained on an apparatus and a method for non-contact measurements on the dielectric properties of materials heated inside operating microwave ovens, are presented. Variations in the dielectric constant and the dielectric losses of a variety of materials (food, rubber, textiles, minerals, etc.) are measured inside a modified Toshiba 600 microwave oven. The temperature range of measurements varies from freezing temperatures to temperatures exceeding 1600°C. This new technique can be used to provide reliable heat controls on microwave ovens. In addition, such measurements can provide a better understanding of the dielectric-temperature dynamic processes involved when heating materials inside microwave ovens.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130293164","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
Microwave and High Frequency Applications of Polyconductors 多导体的微波和高频应用
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332293
M. Hamid, M. H. Rahmani
{"title":"Microwave and High Frequency Applications of Polyconductors","authors":"M. Hamid, M. H. Rahmani","doi":"10.1109/EUMA.1976.332293","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332293","url":null,"abstract":"Several applications of V02 polyconductors at microwave frequencies are suggested for monitoring microwave power, switching, detection, protection, noise generations or steady-state oscillation. For these applications the basic microwave properties of VO2 devices or, film are measured to determine the input impedance versus frequency, the input impedance versus power, the scattering cross-section and the signal-to-noise ratio. Specific circuits are also presented to illustrate each typical application of the device.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129392059","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
A Sensitive and Permanent Josephson Mixer for Millimeter Waves 灵敏和永久的毫米波约瑟夫森混频器
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332354
J. Edrich
{"title":"A Sensitive and Permanent Josephson Mixer for Millimeter Waves","authors":"J. Edrich","doi":"10.1109/EUMA.1976.332354","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332354","url":null,"abstract":"A new method to construct permanent Josephson mixers for millimeter waves is described. In contrast to conventional point contacts which are mechanically unstable and require adjustments after each cooldown, these point contact junctions are set at room temperature, stay mechanically stable and can be temperature cycled without readjustments. The junctions are packaged in a modified Sharples mixer wafer and exhibit a single-sideband noise temperature of 71° K at 47 GHz. Based on these results system noise temperatures of less than 100° K are predicted for practical broadband radiometers, radar and communications receivers up to at least 100 GHz.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123509867","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 14GHz 2kW Klystron for Earth Stations of Broadcasting Satellite Systems 用于广播卫星系统地面站的14GHz 2kW速调管
1976 6th European Microwave Conference Pub Date : 1976-10-01 DOI: 10.1109/EUMA.1976.332308
S. Murata, Kaizo Yamamoto, T. Shinozaki, Hisaaki Sato
{"title":"A 14GHz 2kW Klystron for Earth Stations of Broadcasting Satellite Systems","authors":"S. Murata, Kaizo Yamamoto, T. Shinozaki, Hisaaki Sato","doi":"10.1109/EUMA.1976.332308","DOIUrl":"https://doi.org/10.1109/EUMA.1976.332308","url":null,"abstract":"A klystron has been developed as a transmitting tube for earth stations of transportable or mobile type. The klystron, rather than the TWT, was chosen to make the transmitter compact. It has five cavities and mechanical pre-set tuners to cover the frequency range of 14.0 ~ 14.5 GHz and employs the permanent magnet focusing. Experiments have shown that a satisfactory performance was obtained at 2kW operation with a 50 MHz instantaneous bandwidth.","PeriodicalId":377507,"journal":{"name":"1976 6th European Microwave Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129156332","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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