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1986 16th European Microwave Conference最新文献

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Design Consideration of Coupled Slow-Wave Microstrip-Line Circuits 耦合慢波微带线电路的设计考虑
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334238
H. Ogawa, T. Itoh
{"title":"Design Consideration of Coupled Slow-Wave Microstrip-Line Circuits","authors":"H. Ogawa, T. Itoh","doi":"10.1109/EUMA.1986.334238","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334238","url":null,"abstract":"The constant impedance type-C section made of a coupled slow-wave microstrip line is proposed and its characteristics discussed. In addition. the slow-wave microstrip line directional coupler is proposed and several design equations are derived.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126818827","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
Applications of Satellite Microwave Radiometry in Finland 卫星微波辐射测量在芬兰的应用
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334276
M. Hallikainen, P. Jolma
{"title":"Applications of Satellite Microwave Radiometry in Finland","authors":"M. Hallikainen, P. Jolma","doi":"10.1109/EUMA.1986.334276","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334276","url":null,"abstract":"Data from the Scanning Multichannel Microwave Radiometer (SMMR) onboard Nimbus-7 satellite were applied to (a) retrieval of the water equivalent of snow cover, (b) discrimination of forest and surface types, and (c) determination of the near-surface wind speed. Several water equivalent retrieval algorithms were tested by using a four-year SMMR data set. The brightness temperature difference between 18 GHz and 37 GHz, vertical polarization, was observed to give the highest correlation coefficient with the manually measured snow water equivalent. The use of satellite microwave radiometer data for forest and surface type discrimination is believed to be the first effort in this field. The 10.7 GHz horizontally polarized SMMR channel was found to yield the near-surface wind speed in the Baltic Sea (width about 200 km) with reasonably good accuracy. Previously developed wind speed algorithms have been applied for areas far away from land.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125282586","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
Sensor for Measuring the Moisture Content and the Mass Per Unit Area of Veneer 用于测量单板的水分含量和单位面积质量的传感器
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334222
P. Vainikainen, E. Nyfors, M. Fischer
{"title":"Sensor for Measuring the Moisture Content and the Mass Per Unit Area of Veneer","authors":"P. Vainikainen, E. Nyfors, M. Fischer","doi":"10.1109/EUMA.1986.334222","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334222","url":null,"abstract":"A sensor for measuring the moisture content and mass per unit area of some sheetlike material has been constructed. It is a stripline resonator with two center conductors. The sensor is designed for non-contact measurements and it tolerates moderate movements of the sheet perpendicularly to the plane of the sheet to be measured. It is also designed to have high sensitivity even for thin sheets. The sensor has been applied to measuring the moisture content and mass per unit area of veneer sheets, both undried (green veneer) and dried. The resonance frequency of the sensors used was about 350 MHz. Results obtained in the laboratory and in the factory are reported.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116027693","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 Sensitivity Full Waveguide Ku-Band Harmonic Mixer 高灵敏度全波导ku波段谐波混频器
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334228
R. Hicks
{"title":"High Sensitivity Full Waveguide Ku-Band Harmonic Mixer","authors":"R. Hicks","doi":"10.1109/EUMA.1986.334228","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334228","url":null,"abstract":"The design of a full waveguide band harmonic mixer with vastly improved sensitivity covering the band 12.4 - 18.0 GHz is described. Details of the design of the mixer mount configuration together with the design of the diplexer are provided. The mixer, operating at a harmonic number of 6, provides a maximum conversion loss of 19 dB, a minimum conversion loss of 10 dB and a typical conversion of 14 dB at room temperature.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117077444","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 Loaded Microwave Lens Applicator for Effective Hyperthermia Treatment 用于有效热疗的介电负载微波透镜涂抹器
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334223
Y. Nikawa, F. Okada
{"title":"Dielectric Loaded Microwave Lens Applicator for Effective Hyperthermia Treatment","authors":"Y. Nikawa, F. Okada","doi":"10.1109/EUMA.1986.334223","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334223","url":null,"abstract":"A direct-contact high efficient lens applicator for local microwave hyperthermia treatment of cancer is proposed and developed. The applicator can heat deep and local portion in the dissipative medium such as human body. The dielectric loaded applicators operated at 2450 MHz and 430 MHz show that the heating depth can be reached above twice compared to the simple waveguide applicator which is usually used for hyperthermia. In designing low loss lens applicator, titanium oxide is loaded. The efficiency of the titanium oxide loaded lens applicator operated at 2450 MHz increased over 50 percent compared to that of the conventional lens applicator.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129617455","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
Two-Octave Stopband Microstrip Low-Pass Filter Design using Butterfly Stubs 双倍频阻带微带低通滤波器设计
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334209
F. Giannini, M. Salerno, R. Sorrentino
{"title":"Two-Octave Stopband Microstrip Low-Pass Filter Design using Butterfly Stubs","authors":"F. Giannini, M. Salerno, R. Sorrentino","doi":"10.1109/EUMA.1986.334209","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334209","url":null,"abstract":"The application of a new design technique using non commensurate elements combined with the use of the butterfly stub permits lowpass filters with exceptional performances to be realised in microstrip configuration. Very compact microstrip filters exhibiting very high cutoff rates, two octave stopband widths, and stopband attenuations of 40 dB have been designed, fabricated and measured.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129646847","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
A Linearized L-Band 200 Watt TWT Amplifier for Multicarrier Operation 用于多载波工作的线性化l波段200瓦行波管放大器
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334292
J. Czech
{"title":"A Linearized L-Band 200 Watt TWT Amplifier for Multicarrier Operation","authors":"J. Czech","doi":"10.1109/EUMA.1986.334292","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334292","url":null,"abstract":"In communication satellite transponders for mobile users, very powerful transmitters with multicarrier (linear) operation capability and high RF to DC efficiency are demanded. The travelling wave tube amplifier (TWTA) is the best candidate for high efficiency, but the linearity has to be improved by using a predistortion linearizer. The diode-bridge type linearizer followed by a limiter is the optimum approach in terms of linearization effectiveness close to saturation, stable operation in satellite environment, simple construction and high reliability. Designing and using such a linearizer with a high efficiency TWT especially developed by AEG, the achieved linearization is close to the calculated for the \"ideal\" case. Just the limiter by itself improves the multicarrier behaviour of the TWTA close to saturation. Considering all the experience obtained by the work to be described, a proposal for a multicarrier transmitter is made finally which copes with most of the demands of present and future mobile satellite communication systems.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121271454","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
The Efficient Calculation of High Order Shielded Microstrip Modes for Use in Discontinuity Problems 用于不连续问题的高阶屏蔽微带模式的有效计算
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334247
Mr. C. J. Railton, Prof. T. Rozzi, Mr. J. Kot
{"title":"The Efficient Calculation of High Order Shielded Microstrip Modes for Use in Discontinuity Problems","authors":"Mr. C. J. Railton, Prof. T. Rozzi, Mr. J. Kot","doi":"10.1109/EUMA.1986.334247","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334247","url":null,"abstract":"Previously published results for the higher order modes of microstrip have been restricted to few modes whereas for the analysis of discontinuities many modes must be taken into account. A method of obtaining the propagation coefficients and field patterns of a large number of modes with the minimum of computational effort is described. The results have been applied to the microstrip step discontinuity problem using both mode matching and variational formulations.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121395821","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 GaAs MMIC Modulator for Satellite Communication Applications 用于卫星通信的GaAs MMIC调制器
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334291
M. Cuhaci, M. Stubbs
{"title":"A GaAs MMIC Modulator for Satellite Communication Applications","authors":"M. Cuhaci, M. Stubbs","doi":"10.1109/EUMA.1986.334291","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334291","url":null,"abstract":"This paper presents the results of a monolithic, 12 GHz BPSK modulator which utilizes FETs as the switching elements. The performance of a QPSK modulator using two of the MMIC chips is also presented, and the results of key components to be used in a fully-integrated version are discussed.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122765193","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
Dielectric Resonator Bandpass Filters for Millimetre Wave Applications 毫米波应用的介电谐振带通滤波器
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334184
W. Holpp
{"title":"Dielectric Resonator Bandpass Filters for Millimetre Wave Applications","authors":"W. Holpp","doi":"10.1109/EUMA.1986.334184","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334184","url":null,"abstract":"This paper describes a new bandpass filter for W-band using cylindrical dielectric resonators. With ceramic materials recently available, dielectric resonators become fit for use being a weighty alternative to waveguide cavities or planar microstrip devices even in the millimetre range. Titania with a dielectric constant of 98.2 had been chosen from a variety of materials for the design of a three-section filter with a centre frequency of 96.0 GHz. It was found that an insertion loss of 2 dB over a bandwidth of 1.7 GHz and reasonable far-off selectivity could be achieved.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115814881","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
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