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1987 17th European Microwave Conference最新文献

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Microprobe - Microwave Measurement of Furnace Wall Thickness 炉壁厚度的微探针-微波测量
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333787
G. S. Hobson, R. C. Tozer, J. M. Rees
{"title":"Microprobe - Microwave Measurement of Furnace Wall Thickness","authors":"G. S. Hobson, R. C. Tozer, J. M. Rees","doi":"10.1109/EUMA.1987.333787","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333787","url":null,"abstract":"Glass furnaces such as the one shown schematically in Fig. 1 are built with blockwork made of a dense fusion cast refractory such as AZS or Sillimanite. After commissioning they are run continuously for typically 3 years to 6 years before wall and floor erosion causes them to become dangerous at which point they rnust be demolished and rebuilt. The cost is typically £2m so it is important to be able to measure wall thickness in order to obtain maximum working life consistent with safety.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114814054","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
Stability in Microwave Active Circuits 微波有源电路的稳定性
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333679
D. Maclean
{"title":"Stability in Microwave Active Circuits","authors":"D. Maclean","doi":"10.1109/EUMA.1987.333679","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333679","url":null,"abstract":"The concepts, philosophy and applications of feedback to microwave amplifiers and oscillators are discussed. A new quantity is introduced, which is a measure of feedback present within the transistor itself. The effects on transmission and reflection properties leading to improved design methods are outlined. The use as an aid in oscillator design is treated briefly.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128017894","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
Transition Characterisation for De-Embedding Purposes 用于去嵌入目的的过渡表征
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333752
S. Pennock, C. Rycroft, P. Shepherd, T. Rozzi
{"title":"Transition Characterisation for De-Embedding Purposes","authors":"S. Pennock, C. Rycroft, P. Shepherd, T. Rozzi","doi":"10.1109/EUMA.1987.333752","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333752","url":null,"abstract":"A technique for characterising transitions between different transmission line media is examined. Applications include development of novel circuit media and use as a de-embedding measurement tool. The technique requires measurement of only two sets of back to back transitions, separated by different, known, electrical lengths, and is therefore simple to implement. Both theoretical and measured results are presented.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131942973","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
Architecture and Design Criteria for Space-Based Surveillance Radar 天基监视雷达的结构与设计准则
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333630
G. Galati, G. Losquadro
{"title":"Architecture and Design Criteria for Space-Based Surveillance Radar","authors":"G. Galati, G. Losquadro","doi":"10.1109/EUMA.1987.333630","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333630","url":null,"abstract":"The architecture and the basic design criteria of a space-based surveillance system using primary and secondary radars from a low elevation orbit are described. It is felt that the main system problems, i.e. prime power, data rate, accuracy/resolution and availability, can be solved by fully exploiting the capabilities of distributed, adaptive phased arrays, compatibly with today's technology.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132321029","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
Results of a Feasibility Study for the Antennas of a European DBS Satellite 欧洲DBS卫星天线可行性研究结果
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333705
P. De Vincenti, G. Ruggerini, P. Russo
{"title":"Results of a Feasibility Study for the Antennas of a European DBS Satellite","authors":"P. De Vincenti, G. Ruggerini, P. Russo","doi":"10.1109/EUMA.1987.333705","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333705","url":null,"abstract":"This paper presents the main results of a feasibility study aimed at defining the antenna subsystem of a European DBS satellite. The antennas of the satellite radiate a large number of channels over seven multinational, partially overlapping, coverages. The mass and volume optimization requires the minimization of the number of antennas and therefore each antenna of the subsystem must produce more than one coverage. A solution based on multiple contoured beam configurations is presented. Coverage overlapping is obtained by horn sharing whilst beam isolation is provided through frequency diversity and/or polarization discrimination.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134360234","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
Nonperiodic Solid-Plasma Backward Wave Structure 非周期固体等离子体后向波结构
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333759
V. Miteva, K. Ivanov
{"title":"Nonperiodic Solid-Plasma Backward Wave Structure","authors":"V. Miteva, K. Ivanov","doi":"10.1109/EUMA.1987.333759","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333759","url":null,"abstract":"The propagation characteristics of an azimuthally magnetized solid-plasma circular guide are studied analytically and numerically. Families of design curves for millimeter control components, employing the nonreciprocal phase shifting and magnetically dependent cutoff, experienced by the higher-order TMo1 mode are presented: The structure capability to support backward wave propagation for the TMo1 mode and given direction of DC magnetic bias is explored and interpreted. The potentialities of the guide as device geometry for filters, traveling wave amplifiers and oscillators for millimeter frequencies are discussed.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115457954","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
GaAs MMIC Power FET Amplifiers at K-Band k波段GaAs MMIC功率场效应管放大器
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333634
H.-L.A. Hung, A. Ezzeddine, F. Phelleps, J. Bass, H. Huang
{"title":"GaAs MMIC Power FET Amplifiers at K-Band","authors":"H.-L.A. Hung, A. Ezzeddine, F. Phelleps, J. Bass, H. Huang","doi":"10.1109/EUMA.1987.333634","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333634","url":null,"abstract":"K-band monolithic power GaAs FET amplifier modules have been developed. These single-ended modules provide a linear gain of 4.5 dB and out-put power of 27 dBm in the 17.7- to 20.5-GHz band. At 19 GHz, a balanced module has achieved an output power of up to 1.5 W (0.52 W/mm), while a cascaded multistage amplifier has demonstrated a linear power gain of 26.2 dB and output power of 1.33 W. These 1.7- × 1.8-mm MMICs include DC-blocking capacitors and bias networks.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114464966","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 Self-Oscillating Single Gatemesfet X-Bandmixer 一种自振荡单门管x波段混频器
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333777
A. E. Fusté, J. Busquets, E. de 1os Reyes Davo
{"title":"A Self-Oscillating Single Gatemesfet X-Bandmixer","authors":"A. E. Fusté, J. Busquets, E. de 1os Reyes Davo","doi":"10.1109/EUMA.1987.333777","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333777","url":null,"abstract":"The non1inear properties of GaAs MESFET can be used to implement self-oscillating mixers. This paper describes a new single-gate MESFET X-Band mixer of this kind built on a microstrip circuit, its design constraints and the results obtained.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115124924","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
Effects of Insulating Dielectric Layers in Millimeter-Wave Planar Transmission Lines 毫米波平面传输线中绝缘介质层的影响
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333686
B. Young, T. Itoh
{"title":"Effects of Insulating Dielectric Layers in Millimeter-Wave Planar Transmission Lines","authors":"B. Young, T. Itoh","doi":"10.1109/EUMA.1987.333686","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333686","url":null,"abstract":"Insulating dielectric layers added to waveguiding structures to reduce the conductor losses at high frequencies complicate the structure and usually introduce dominant mode crossing and leakage. A qualitative study is used to derive a design constraint that ensures that insulated structures fully utilize the conductor loss reduction available from the insulating dielectric layers. A numerical example is provided in which it is shown that in certain cases arbitrary dielectrics cannot be used for insulating layers.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123420759","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
Analysis and Design of Evanescent Mode Waveguide Filter with Non-Touching E-Plane Fins 非接触e平面翅片的倏逝模波导滤波器的分析与设计
1987 17th European Microwave Conference Pub Date : 1987-10-01 DOI: 10.1109/EUMA.1987.333656
Qiu Zhang, T. Itoh
{"title":"Analysis and Design of Evanescent Mode Waveguide Filter with Non-Touching E-Plane Fins","authors":"Qiu Zhang, T. Itoh","doi":"10.1109/EUMA.1987.333656","DOIUrl":"https://doi.org/10.1109/EUMA.1987.333656","url":null,"abstract":"The analysis and design of evanescent mode waveguide filters with non-touching E-plane fins are presented. The theoretical analysis is based on the generalized scattering matrix technique in conjunction with the spectral domain approach and mode matching method. The mesasured filter responses in Ka band (26.5-40.0 GHz) are in good agreement with those obtained by analysis.","PeriodicalId":208245,"journal":{"name":"1987 17th European Microwave Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1987-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121902993","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
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