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1996 26th European Microwave Conference最新文献

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Novel broadband slot antenna with low cross-polarization 新型低交叉极化宽带缝隙天线
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337646
X. Ding, A. Jacob
{"title":"Novel broadband slot antenna with low cross-polarization","authors":"X. Ding, A. Jacob","doi":"10.1109/EUMA.1996.337646","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337646","url":null,"abstract":"A new broadband slot antenna with low cross-polarization is presented. It is realized by introducing metal stubs in the aperture of a conventional bow-tie slot antenna. A spectral domain moment method analysis shows that the cross-polarization can be reduced by about 15 dB. The SWR remains below 1.6 in the bandwidth fupper/flower=2.8. Experimental data are in good agreement with theoretical predictions.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125450150","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 simplified nonquasi-static table based FET model 基于非准静态表的简化场效应管模型
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337634
M. Barciela, P. Tasker, M. Demmler, E. Sánchez
{"title":"A simplified nonquasi-static table based FET model","authors":"M. Barciela, P. Tasker, M. Demmler, E. Sánchez","doi":"10.1109/EUMA.1996.337634","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337634","url":null,"abstract":"A nonquasi-static nonlinear table-based FET model, which has been implemented into a commercial Harmonic Balance Simulator (MDS), is described and demonstrated. It makes use of a simplified nonquasi-static charge formulation and also accounts for low frequency dispersion phenomena. It can be derived, fast and simply, from dc and small signal S-parameters and is general and technology and process independent. The model is accurate under dc, small and large signal operating conditions being able to perform excellent predictions up to high frequencies and over a wide bias range. Dynamic large signal model behaviour has been validated using pseudomorphic HEMT structures, by comparing measured and simulated input and output waveforms, dynamic load line and transfer characteristics. Excellent agreement between measurements and simulation results has been achieved in the frequency range from 2 to 50 GHz.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123408523","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: 11
Microstrip patch antennas at 60 GHz for RACE project MBS 用于RACE项目MBS的60 GHz微带贴片天线
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337729
C. Peixeiro, P. Dufrane, Y. Guillerme, A. Boulouard, E. Delhaye, B. Byzery
{"title":"Microstrip patch antennas at 60 GHz for RACE project MBS","authors":"C. Peixeiro, P. Dufrane, Y. Guillerme, A. Boulouard, E. Delhaye, B. Byzery","doi":"10.1109/EUMA.1996.337729","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337729","url":null,"abstract":"The 60 GHz microstrip patch antenna work carried out in the frame work of RACE project 2067 Mobile Broadband System (MBS) is described. Two approaches have been taken: develop both low cost antennas printed on plastic substrates and MMIC transmit and receive active integrated antennas printed on GaAs substrates. Some configurations have been designed, fabricated and tested. Simulated and experimental results are presented.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122451986","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
Two prototypes of adaptive antenna receivers for mobile systems 移动系统自适应天线接收器的两个原型
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337562
J. Alonso, J. M. Blas, J. Ramos, L. Garcia, J. Grajal, J. de Pablos, J. Gismero, F. Perez
{"title":"Two prototypes of adaptive antenna receivers for mobile systems","authors":"J. Alonso, J. M. Blas, J. Ramos, L. Garcia, J. Grajal, J. de Pablos, J. Gismero, F. Perez","doi":"10.1109/EUMA.1996.337562","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337562","url":null,"abstract":"An antenna system including antenna elements and a satellite tracking method is considered a key technology in implementing larid mobile satellite communications. This paper describes the development of two L-band satellite-tracking mobile-vehicular antenna systems for communications and navigation projects. The design and implementation of the different parts of both demonstrators, from stacked microstrip. patch array antenna to the signal processing circuits, including the microwave ICs and IF stages, will be addressed in this paper. Simulations and experimental data showing the performance of both demonstrators will be presented as well.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126470025","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 new dual mode cavity concept 一种新的双模空腔概念
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337623
J. L. Cáceres
{"title":"A new dual mode cavity concept","authors":"J. L. Cáceres","doi":"10.1109/EUMA.1996.337623","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337623","url":null,"abstract":"A new dual mode cavity concept is presented based on the independent tuning of two orthogonal resonant modes inside a cavity. The use of this principle has been claimed in the past very frequently but violated in practice due to a confusing association between the electromagnetic system and its equivalent network representation. It is shown that the desired coupling effect inside the cavity is simply obtained when both resonant modes are simultaneously excited and tuned to different frequencies. A generic network representation for the dual mode cavity is proposed which is more clearly associated to the real electromagnetic system. The relation of this network with the standard filter synthesis network is shown and some fundamental design implications are derived that are not in full agreement with the classical design techniques. Based on this new understanding a simple tuning mechanism has been experimentally verified on typical channel filters.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121040428","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
Novel measurement system within 110-170 GHz using a dielectric multistate refiectometer 基于介电多态反射计的110-170 GHz测量系统
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337701
I. M. Boese, R. Collier
{"title":"Novel measurement system within 110-170 GHz using a dielectric multistate refiectometer","authors":"I. M. Boese, R. Collier","doi":"10.1109/EUMA.1996.337701","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337701","url":null,"abstract":"The paper will describe a novel measurement system which is part of a research project on the design of M3ICs at 140 GHz. The intension is to characterise on-wafer devices within the waveguide band 110 - 170 GHz using a dielectric waveguide multistate reflectometer (DMR). Although a lot of work has been done in recent years on realising 6 port and then 4 port reflectometers they either were built for frequency ranges below 100 GHz or they were realised using metallic waveguide technology.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124942784","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
Fingers slow-wave structures 手指慢波结构
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337692
Y. N. Pchel'nikov
{"title":"Fingers slow-wave structures","authors":"Y. N. Pchel'nikov","doi":"10.1109/EUMA.1996.337692","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337692","url":null,"abstract":"New way of calculation the fingers slow-wave structures of a two-wire type, based on the theory of multiconductors' lines and on the replacement of a real structure by an equivalent to it two-wire long line is offered. The offered method permits to calculate the dispersion characteristics not only one-row, but also of the two-row fingers structures. For the first time by calculation and on the basis of direct measurements the opportunity of an essential increase of electromagnetic waves' deceleration in fingers combs, located in parallel one upon the other, is shown. Results of experimental researches of effect of fingers' width and of the period of their arrangement on the value of deceleration are shown also.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125172905","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
Nonlinear transmission line as a large signal model for HEMT 非线性传输线作为HEMT的大信号模型
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337568
Byung-sung Kim, Sangwook Nam
{"title":"Nonlinear transmission line as a large signal model for HEMT","authors":"Byung-sung Kim, Sangwook Nam","doi":"10.1109/EUMA.1996.337568","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337568","url":null,"abstract":"This paper presents a new large signal modeling technique for FET devices. The proposed method employs distributed approach using nonlinear transmission line based on GCA(Gradual Channel Approximation). The modeling procedure needs only a few S parameter measurements under cold bias condition and simple I-V measurements. The former is used to extract the channel conductance and gate capacitance and the latter to optimize the velocity-field relation. The large signal model can be directly established without any active biased S parameter measurements, ECP extraction, and laborious fitting procedures required in conventional empirical modelings.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125642544","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 trellis coded modulation effects in time-selective fading mobile radio channel 时选衰落移动无线电信道中栅格编码调制效果的评价
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337517
M. Pejanovic, Z. Veljovic, Z. Petrovíc
{"title":"Evaluation of trellis coded modulation effects in time-selective fading mobile radio channel","authors":"M. Pejanovic, Z. Veljovic, Z. Petrovíc","doi":"10.1109/EUMA.1996.337517","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337517","url":null,"abstract":"In this paper effects of trellis coded modulation in mobile radio systems are evaluated. The specific channel with timeselective fading process is considered. The complete descriptions of such channel and an appropriate receiver is given. General model for bit error rate calculations is presented. That model enables error determination for every type of fading encountered in mobile radio systems as well as for different TCM schemes. Here we chose to analyse trellis encoding in combination with PSK, PSK with pilot tone and DPSK.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125618409","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
A dedicated radar imaging statistical model of the scattering matrix initially characterised in an anechoic chamber - Application to the Huynen parameters sensitivity analysis 最初在消声室中表征散射矩阵的专用雷达成像统计模型-在惠能参数灵敏度分析中的应用
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337586
L. Priou, B. Uguen, G. Chassay
{"title":"A dedicated radar imaging statistical model of the scattering matrix initially characterised in an anechoic chamber - Application to the Huynen parameters sensitivity analysis","authors":"L. Priou, B. Uguen, G. Chassay","doi":"10.1109/EUMA.1996.337586","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337586","url":null,"abstract":"A noise scattering matrix statistical model of the Anechoïc Chamber measurement channel is first developed in the frequential domain, then in the time domain and in the holographic radar images domain. Building these models allows one to analyse the sensitivity of a common target classification tool, the Huynen parameters, for any target and then to construct a prediction model of the Huynen parameters sensitivity based on the measure of a single target scattering matrix [S].","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"41 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113979129","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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