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1986 16th European Microwave Conference最新文献

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On Circuits with Coupled Thick Microstrips 耦合厚微带电路
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334248
A. B. Dalby
{"title":"On Circuits with Coupled Thick Microstrips","authors":"A. B. Dalby","doi":"10.1109/EUMA.1986.334248","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334248","url":null,"abstract":"A method for calculation af coupled thick microstrip parameters is presented. The method is employed in analysis- and synthesis procedures (programs) for circuits with multiple coupled strips with arbitrary dimensions on arbitrary isotropic substrates. It is thus possible to analyze and synthesize e.g. interdigital microstrip filters with thick microstrips. The method takes into account losses due to conductor losses, these beeing the most important at practical frequencies. Measured and calculated insertion losses are in agreement, which has made it possible to present an empirical formula for the insertion loss for interdigital microstrip filters of almost any order and type, thus making it possible to find out in advance whether a certain filter is worth making.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"676 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":"132202096","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 Computer Controlled Homodyne Network Analyser with Phase Shift Keying and Error Correction for 26.5 - 40 GHz 26.5 - 40ghz具有相移键控和误差校正的计算机控制纯差网络分析仪
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334288
J. Schneider, B. Schiek
{"title":"A Computer Controlled Homodyne Network Analyser with Phase Shift Keying and Error Correction for 26.5 - 40 GHz","authors":"J. Schneider, B. Schiek","doi":"10.1109/EUMA.1986.334288","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334288","url":null,"abstract":"This paper presents a homodyne network analyser working over the full ka-band (26.5 - 40 GHz). The system employs three cascaded binary phase shifters and downconverts the modulated RF-signal to the baseband, where it is processed by a microcomputer. Measurement errors for 50 dB attenuation are less than 2,5° for the phase and 0,5 dB for the amplitude. Linear system errors are reduced by the application of an automatic error correction procedure.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"18 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114031692","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
Feasibility of Radiometric Sensing of Two-Dimensional Thermal Patterns in Local Hyperthermia 局部热疗中二维热模式辐射传感的可行性
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334256
F. Bardati, M. Mongiardo, D. Solimini, P. Tognolatti
{"title":"Feasibility of Radiometric Sensing of Two-Dimensional Thermal Patterns in Local Hyperthermia","authors":"F. Bardati, M. Mongiardo, D. Solimini, P. Tognolatti","doi":"10.1109/EUMA.1986.334256","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334256","url":null,"abstract":"A numerical analysis has been carried out to test a technique for the reconstruction of two-dimensional thermal patterns induced by local hyperthermia. The method uses first a deconvolution of data obtained by displacing a multifrequency microwave sensor across the surface of the heated region to achieve transverse resolution. Deconvolved data are then processed to retrieve the subcutaneous gradient with depth. The numerical results indicate that, at least in principle, the retrieval may be feasible.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"27 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":"114518329","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
An Integrated DBS Receiver Front-End using a Monolithic Frequency Converter 采用单片变频器的集成DBS接收机前端
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334260
B. Geller, J. Abita
{"title":"An Integrated DBS Receiver Front-End using a Monolithic Frequency Converter","authors":"B. Geller, J. Abita","doi":"10.1109/EUMA.1986.334260","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334260","url":null,"abstract":"A low-noise 12-GHz receiver front-end consisting of a novel integration of a monolithic frequency converter (two-stage LNA and mixer), MIC bandpass filter, and lumped element IF network on a coplanar waveguide (CPW) mother board is described. The techniques employed for the design and fabrication of the monolithic frequency converter, including a new dual-FET mixer configuration, are described. Measurements of the front-end indicate a noise figure of generally less than 5 dB and an associated gain of 10 dB across the 11.7 GHz to 12.2 GHz input band (0.9- to 1.4-GHz IF band).","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"105 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":"121152747","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
Millimeter Wave Frequency Multipliers Employing Semiconductor Diodes in a Balanced Configuration 采用平衡配置的半导体二极管的毫米波倍频器
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334201
C. Hu
{"title":"Millimeter Wave Frequency Multipliers Employing Semiconductor Diodes in a Balanced Configuration","authors":"C. Hu","doi":"10.1109/EUMA.1986.334201","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334201","url":null,"abstract":"The application of semiconductor diodes in microwave/millimeter wave frequency multipliers is well known. A new technique, employing semiconductor diodes in a balanced circuit configuration, has demonstrated significant performance advantages in millimeter wave doubler and tripler applications. Both theoretical analyses and experimental data summaries are presented in support of this conclusion.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"46 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":"116328610","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: 13
Normally-Off Mesfet Analogue Circuits 常关Mesfet模拟电路
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334263
V. Pauker, P. Dautriche, A. Giakoumis, A. Kazeminejad
{"title":"Normally-Off Mesfet Analogue Circuits","authors":"V. Pauker, P. Dautriche, A. Giakoumis, A. Kazeminejad","doi":"10.1109/EUMA.1986.334263","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334263","url":null,"abstract":"A very small (0.04 mm2) monolithic DC to 2GHz, input/output matched, amplifier using enhancement mode GaAs MESFET's has been realized, to demonstrate the analog circuits capability of this type of transistor. The gain of the amplifier is 12dB, its noise factor is 2dB.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"30 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":"127140990","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: 6
A 94 GHz High Power Low Loss Junction Circulator 一种94 GHz高功率低损耗结环行器
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334186
G. Forterre, E. Laroche
{"title":"A 94 GHz High Power Low Loss Junction Circulator","authors":"G. Forterre, E. Laroche","doi":"10.1109/EUMA.1986.334186","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334186","url":null,"abstract":"In this paper, the design of a high power W Band junction circulator using monocristalline hexagonal ferrites is described.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"21 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":"125699579","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 New Method to Prevent Spurious Oscillations in Coupled Cavity TWT's 防止耦合腔行波管杂散振荡的新方法
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334190
G. Busacca, V. Meli, M. Spalla
{"title":"A New Method to Prevent Spurious Oscillations in Coupled Cavity TWT's","authors":"G. Busacca, V. Meli, M. Spalla","doi":"10.1109/EUMA.1986.334190","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334190","url":null,"abstract":"Self- and drive induced oscillations are prevented in Coupled Cavity Power Travelling Wave Tube Amplifiers (TWTA's) by introducing frequency dependent R.F. losses at the upper cutoff. This paper describes a new method to realize the requested lossed by means of the cutoff properties of loaded waveguides coupled to the circuit. The losses introduced do not interfere in the working band, so that the tube efficiency and gain are not affected. A Coupled Cavity R.F. circuit is designed according to this method with the aim to obtain stable operations in a 400 MHz hot band at 3 GHz. Experimental results showed excellent stability with 50 dB saturated gain","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":"131070877","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 Cryogenically Cooled Radiometer for 900GHz 900GHz低温冷却辐射计
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334204
S. Lidholm, W. Kelly, J. Coughlan, G. Wrixon
{"title":"A Cryogenically Cooled Radiometer for 900GHz","authors":"S. Lidholm, W. Kelly, J. Coughlan, G. Wrixon","doi":"10.1109/EUMA.1986.334204","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334204","url":null,"abstract":"A cooled Schottky barrier diode heterodyne receiver has been constructed for operation at 900GHz. A corner cube mixer and a miniature closed cycle cooler were used. The double sideband receiver noise temperature at 890GHz was 15300K, with corresponding Tmxr = 7700K and Lmxr = 18.0dB, and operating under LO-starved conditions.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"108 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":"132861408","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
Evaluation of Non-Linear Functional Equivalent Circuit Models for a GaAs MESFET, and Their Application to Optimum Power Amplifier Design GaAs MESFET非线性功能等效电路模型的评估及其在功率放大器优化设计中的应用
1986 16th European Microwave Conference Pub Date : 1986-10-01 DOI: 10.1109/EUMA.1986.334193
T. Brazil
{"title":"Evaluation of Non-Linear Functional Equivalent Circuit Models for a GaAs MESFET, and Their Application to Optimum Power Amplifier Design","authors":"T. Brazil","doi":"10.1109/EUMA.1986.334193","DOIUrl":"https://doi.org/10.1109/EUMA.1986.334193","url":null,"abstract":"Three different non-linear equivalent circuit models are developed for the GaAs MESFET, based on Y-parameters, S-parameters, and a hybrid parameter system. A comparison is carried out between the optimum added-power conditions predicted by each model for a single-frequency power amplifier, and the predictions are also tested against a full time-domain analysis of the amplifier.","PeriodicalId":227595,"journal":{"name":"1986 16th European Microwave Conference","volume":"119 48","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131914315","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
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