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1990 20th European Microwave Conference最新文献

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On the Design of Optimized Microstrip Radial Line Power Dividers 微带径向线功率分压器的优化设计
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336203
G. Bartolucci, F. Giannini, C. Paoloni
{"title":"On the Design of Optimized Microstrip Radial Line Power Dividers","authors":"G. Bartolucci, F. Giannini, C. Paoloni","doi":"10.1109/EUMA.1990.336203","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336203","url":null,"abstract":"The planar realization of beam forming networks for active antenna systems in satellite communication requires small and high performance power splitters. The microstrip radial line power divider seems to be a suitable structure for this purpose, because, under certain hypothesis, insures an equiphase and equiamplitude power splitting. A design procedure which assures the realization of optimized n- way radial line dividers is proposed and the corresponding design charts are given. Moreover good agreement between experimental and theoretical data from different sources is demonstrated.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"44 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":"116024645","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
A Microwave Amplitude and Phase Alignement System for Space Diversity Receiver 用于空间分集接收机的微波幅相对准系统
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336073
X. Le Polozec, J. Guillard
{"title":"A Microwave Amplitude and Phase Alignement System for Space Diversity Receiver","authors":"X. Le Polozec, J. Guillard","doi":"10.1109/EUMA.1990.336073","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336073","url":null,"abstract":"This paper describes the design of a space diversity microwave combiner which is used in a direct demodulation microwave link (16 QAM 140 Mbits/s) in the 6.4-7.1 GHz band. The space diversity microwave combiner consists of two variable gain low noise amplifiers (in MMIC technology), a tunable attenuator and a balancing delay line, a controllable endless phase shifter and a summing network.","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":"115542170","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
Em KorukunnavA Low Noise Hybrid Integrated 4.5 Gbit/s Optical Front End Em KorukunnavA低噪声混合集成4.5 Gbit/s光前端
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336122
J. Hausner, W. Richter, P. Russer, B. J. Scheuvens
{"title":"Em KorukunnavA Low Noise Hybrid Integrated 4.5 Gbit/s Optical Front End","authors":"J. Hausner, W. Richter, P. Russer, B. J. Scheuvens","doi":"10.1109/EUMA.1990.336122","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336122","url":null,"abstract":"A broadband front end of an optical receiver for a frequency band from 10 MHz up to 5.5 GHz has been designed and fabricated using hybrid integrated technology. The amplifier consists of a transimpedance input stage, two broadband shunt feedback amplifier stages and an equalizing output. The amplifier was optimized for low noise performance. For noise analysis, the influence of the shot noise caused by the input power dependent photo current in the photo diode was taken into account using the network analysis program SANA.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"21 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":"114480768","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
Coplanar and Broadside Coupled Finline Six Port Hybrids 共面和舷侧耦合鳍线六端口混合动力车
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336201
V. Tripathi, A. Biswas
{"title":"Coplanar and Broadside Coupled Finline Six Port Hybrids","authors":"V. Tripathi, A. Biswas","doi":"10.1109/EUMA.1990.336201","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336201","url":null,"abstract":"Coupled three finline structures are analyzed for application as power dividers and couplers in terms of the normal mode parameters of the structures. These hybrids are then realized for the desired values of the normal mode parameters in the form of both coplanar and broadside coupled finlines. A unified approach to the analysis and design of the six port three way power dividers is presented.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"25 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":"116265427","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
Tracking System for Satellite Ground Station Antennas with Field-Selective Coupling of TE01 and TM01 Modes TE01和TM01模式场选择耦合卫星地面站天线跟踪系统
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336296
E. Schuegraf
{"title":"Tracking System for Satellite Ground Station Antennas with Field-Selective Coupling of TE01 and TM01 Modes","authors":"E. Schuegraf","doi":"10.1109/EUMA.1990.336296","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336296","url":null,"abstract":"A TE01 and a TM01 tracking mode coupler both with TE11 excluding coupling are integrated in wideband OMT's for the 11/12/14-GHz ranges resp. for the 20/30 GHz ranges.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"6 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":"114766070","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
Full-Wave Investigation of Leakage from a Covered Microstrip Line with Finite Strip Conductivity and Thickness 具有有限电导率和厚度的覆盖微带线泄漏的全波研究
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336099
Ching-Kuang C. Tzuang, C. Tien, K. Chan
{"title":"Full-Wave Investigation of Leakage from a Covered Microstrip Line with Finite Strip Conductivity and Thickness","authors":"Ching-Kuang C. Tzuang, C. Tien, K. Chan","doi":"10.1109/EUMA.1990.336099","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336099","url":null,"abstract":"A network representation of full-wave mode-matching method employing the metal modes is applied to the investigation of the leaky wave from a covered microstrip line with finite metalized strip conductivity and thickness. The theoretical results are in good agreement with the published data for both dominant mode and leaky wave cases. The effects of finite metalized conductivity and thickness on the first odd mode leaky wave are investigated and reported rigorously.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"7 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":"114887571","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: 8
A Comparison of the Link Performance of Directly and Externally Modulated Analog Fiber-Optic Links 直接调制与外部调制模拟光纤链路的链路性能比较
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336121
C. Cox, G. Betts, L. Johnson
{"title":"A Comparison of the Link Performance of Directly and Externally Modulated Analog Fiber-Optic Links","authors":"C. Cox, G. Betts, L. Johnson","doi":"10.1109/EUMA.1990.336121","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336121","url":null,"abstract":"","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"150 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":"127221592","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
Nonlinear Microwave Circuits Designing with a New Optimization Approach 非线性微波电路设计的新优化方法
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336244
Zhang Xiang-dong, Hong Xing-nan, Gao Bao-xin
{"title":"Nonlinear Microwave Circuits Designing with a New Optimization Approach","authors":"Zhang Xiang-dong, Hong Xing-nan, Gao Bao-xin","doi":"10.1109/EUMA.1990.336244","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336244","url":null,"abstract":"A very efficient optimization approach which is used to design microwave nonlinear circuits is proposed. In this method, the nonlinear circuit designing is treated as a constrained optimization problem. High efficiency is obtained by step linearizing the nonlinear constraint equation. A comparison example shows that this approach is about ten times faster than the conventional one. A MESFET amplifier with optimum linearity and output was developed to verify this method, and a satisficatory result was obtained. Using this time-saving approach, optimal design of nonliear microwave circuits can be accomplished on common computers without mainframe, or even on personal computers.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"410 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":"126686891","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
Pattern Calculation of a Dual Shaped Reflector Antenna 双形反射面天线方向图计算
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336290
M. Vesnik, V. Kaloshin
{"title":"Pattern Calculation of a Dual Shaped Reflector Antenna","authors":"M. Vesnik, V. Kaloshin","doi":"10.1109/EUMA.1990.336290","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336290","url":null,"abstract":"The pattern calculation algorithm for a circulary symmetric dual shaped reflector antenna is designed using physical theory of diffraction (PTD) approach. The pattern is presented by the sum of three successive scattering of the radiator field by the reflectors. The radiation field is a spherical wave with a known pattern. The geometry of the dual shaped reflector antenna is supposed to be known too.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"100 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":"124121192","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
Circular Waveguide with a Resistive Film in the Diametral Plane 直径平面上带阻性膜的圆波导
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336315
I. M. Braver, P. Fridberg, K. Garb
{"title":"Circular Waveguide with a Resistive Film in the Diametral Plane","authors":"I. M. Braver, P. Fridberg, K. Garb","doi":"10.1109/EUMA.1990.336315","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336315","url":null,"abstract":"Two main problems connected with the design of the absorbing section of the rotary vane attenuator were strictly solved: 1) attenuation constant of the dominant mode of the circular waveguide with a resistive film in the diametral plane was determined, 2) the scattering matrix of a section of the circular waveguide with the same film was found. The optimization of the parameters of the rotary vane attenuator was perfomed on the basis of the problems solved.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"18 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":"131583571","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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