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1988 18th European Microwave Conference最新文献

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Estimation of the Coherence Bandwidth for a Millimetre Wave Mobile Radio Link 毫米波移动无线电链路相干带宽的估计
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333916
G. L. Siqueira, H. Thomas, R. Cole
{"title":"Estimation of the Coherence Bandwidth for a Millimetre Wave Mobile Radio Link","authors":"G. L. Siqueira, H. Thomas, R. Cole","doi":"10.1109/EUMA.1988.333916","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333916","url":null,"abstract":"A bandwidth study of multipath propagation at 55 GHz in a heavily built up urban environment is presented. Estimates of coherence bandwidth between two phase coherent signals transmitted at various frequency separations are given. Results show that a reasonable estimate for the correlation bandwidth in an urban multipath environment is about 25 MHz.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121190720","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 Microcomputer-Controlled Pseudo Noise Modulated CW-Radar With SAW-Convolver For Signal Processing 用saw -卷积器进行信号处理的微机控制伪噪声调制cw雷达
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333914
B. Wigger, W. Knapp, E. Besenfelder
{"title":"A Microcomputer-Controlled Pseudo Noise Modulated CW-Radar With SAW-Convolver For Signal Processing","authors":"B. Wigger, W. Knapp, E. Besenfelder","doi":"10.1109/EUMA.1988.333914","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333914","url":null,"abstract":"In the past there was a rapid development of new components for matched filtering of signals with large time-bandwidth-product on the basis of surface acoustic waves (SAW). Such components, as there is the SAW-Convolver /1/, allow the realization of very fast and precise operating distance measurement systems with a minimum of components in the signal processing circuitry. In addition continous wave (CW) Radarsystems employ a minimum of radiation power /2/. In this paper a microcomputer-controlled distance measurement system using a SAW-Convolver is presented. For data acquisition a special interface circuitry has been realized that allows real-time distance measurement of up to sixteen targets within the observed range. For an improvement of the range accuracy a combination of time-delay and phase measurement is employed in this system.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114638808","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
Scalar MM-WAVB Network Analysis with High Dynamic Range 高动态范围标量MM-WAVB网络分析
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333838
T. Geist, G. Hochschild, W. Wiesbeck
{"title":"Scalar MM-WAVB Network Analysis with High Dynamic Range","authors":"T. Geist, G. Hochschild, W. Wiesbeck","doi":"10.1109/EUMA.1988.333838","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333838","url":null,"abstract":"A scalar network analysis system suitable for the frequency range 110 - 170 GHz is presented. It offers a dynamic range up to 60 dB, thus having the capability to characterize the frequency response of millimeter wave networks with high insertion loss. The system consists of components, which are probably used at each microwave laboratory. The microwave source is a swept synthesizer. Its output signal is multiplied to the D-band frequency range. The paper describes the system's basic properties, as there are frequency stability and dynamic range, and how they are influenced by the components. Finally applications and results are presented.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116259740","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
An Automatic System Coupling Large Signal Measurement Set up and an Optimization Software for Power Amplifier Design 一种自动系统耦合大信号测量装置及功率放大器设计优化软件
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333836
J. Nebus, J. Villotte, J. F. Vidalou, M. Aubourg, L. Hagerman, H. Jallageas
{"title":"An Automatic System Coupling Large Signal Measurement Set up and an Optimization Software for Power Amplifier Design","authors":"J. Nebus, J. Villotte, J. F. Vidalou, M. Aubourg, L. Hagerman, H. Jallageas","doi":"10.1109/EUMA.1988.333836","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333836","url":null,"abstract":"An automatic active source and load pull system has been designed. The behaviour of devices under large signal conditions is given by a data file. Associated optimization software gives the optimum operating conditions.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126306774","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 Measurement Method for Symmetrical Coupled Lines 对称耦合线的测量方法
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333839
B. Cherek, T. Brazil
{"title":"A Measurement Method for Symmetrical Coupled Lines","authors":"B. Cherek, T. Brazil","doi":"10.1109/EUMA.1988.333839","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333839","url":null,"abstract":"A simple and accurate measurement method for obtaining the even-and odd-mode impedances is presented. The results given by this method are compared with the experimental results given by other authors. The deviation between the results of the method presented in this paper and results often taken as \"standard\" is very small.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128186683","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
Deliver 100,000 Modules a Month? of Course, We use Cam! 每月交付100,000个模块?当然，我们用卡姆!
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333795
A. Pavio
{"title":"Deliver 100,000 Modules a Month? of Course, We use Cam!","authors":"A. Pavio","doi":"10.1109/EUMA.1988.333795","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333795","url":null,"abstract":"The application of computer-aided manufacturing (CAM) techniques to the assembly and test of a low-cost high-volume X-band Radar T/R module will be investigated by highlighting the differences between low frequency and microwave CAM methods, focusing on the difficulties of automated testing, evaluation and circuit tuning. The problems encountered when implementing high-precision automated assembly methods, which include wire-bonding, soldering and piece-part placement will also be discussed. The assembly methods, and a novel implementation of a microwave circuit Laser tuning technique, which were used to manufacture the module's five-bit phase shifter, aids in illustrating the above CAM concepts.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121614947","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
Microstrip Attenuators and Terminations Realized with Periodic Electromagnetic Structures 用周期电磁结构实现微带衰减器和终端
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333876
C. Suoli
{"title":"Microstrip Attenuators and Terminations Realized with Periodic Electromagnetic Structures","authors":"C. Suoli","doi":"10.1109/EUMA.1988.333876","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333876","url":null,"abstract":"The theory of electromagnetic periodic structures is applied in the analysis of resistive microstrip attenuators. The attenuator is realized by means of a line whose characteristic impedance Zo is a real number equal to a prefixed normalization impedance, and whose attenuation constant a is very high. Small size, high reliability wide band attenuators and terminations, directly built on dielectric substrate have suitable performances to be used in MICs and MMICs.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115815967","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
"D C TO 8 GHz GaAs Normally-Off Amplifiers" dc - 8 GHz GaAs常关放大器
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333871
O. Arnaud, M. Bostelmann, D. Meignant, P. Minondo
{"title":"\"D C TO 8 GHz GaAs Normally-Off Amplifiers\"","authors":"O. Arnaud, M. Bostelmann, D. Meignant, P. Minondo","doi":"10.1109/EUMA.1988.333871","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333871","url":null,"abstract":"We have developped a family of ultra wideband, low power, single supply GaAs normally-off amplifiers. These amplifiers are fabricated with the RTC Limeil digital enhancement mode FET technology. Input and output VSWR's are lower than 2.0 over the entire frequency band. The typical noise figure is 6.2 dB and the single tone -1 dB gain compression is reached at 2 dBm of output power for a linear small signal gain of 8.5 dB. As an application example the combination of multistage amplifiers extends direct frequency counter sensitivities to below -40 dBm.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115898800","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
Theoretical and Experimental Investigation of Open Microstrip Gap Discontinuities 微带开隙不连续的理论与实验研究
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333817
M. Drissi, V. Hanna, J. Citerne
{"title":"Theoretical and Experimental Investigation of Open Microstrip Gap Discontinuities","authors":"M. Drissi, V. Hanna, J. Citerne","doi":"10.1109/EUMA.1988.333817","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333817","url":null,"abstract":"A theoretical analysis of open discontinuities in microwave planar circuits using integral equations technique solved by the moment method is described. Characterization of the dicontinuity by an equival ent scattering matrix is then accurately evaluated from the determnation of the current distribution along the line containing the discontinuity under different load conditions. An experimental method, which is capable to determine directly the discontinuity equivalent circuit parameters, is proposed. A good agreement between theoretical and experimental results is reported.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131439992","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: 19
The Planar Array Antennas for the European Remote Sensing Satellite ERS-1 欧洲ERS-1遥感卫星平面阵列天线
1988 18th European Microwave Conference Pub Date : 1988-10-01 DOI: 10.1109/EUMA.1988.333830
R. Petersson, P. Ingvarson
{"title":"The Planar Array Antennas for the European Remote Sensing Satellite ERS-1","authors":"R. Petersson, P. Ingvarson","doi":"10.1109/EUMA.1988.333830","DOIUrl":"https://doi.org/10.1109/EUMA.1988.333830","url":null,"abstract":"The imaging and scatterometer radar systems for ERS-l require a total of four planar arrays. The arrays are of the slotted waveguide type and operate at 5.3 GHz. They have been electrically designed. and measured by ERICSSON RADAR ELECTRONICS AB.","PeriodicalId":161582,"journal":{"name":"1988 18th European Microwave Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115355589","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
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