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1996 26th European Microwave Conference最新文献

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Characterization of microstrip line with a trapezoidal dielectric ridge in multilayered media 多层介质中梯形介质脊微带线的特性研究
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337679
Keren Li, K. Atsuki
{"title":"Characterization of microstrip line with a trapezoidal dielectric ridge in multilayered media","authors":"Keren Li, K. Atsuki","doi":"10.1109/EUMA.1996.337679","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337679","url":null,"abstract":"In this paper, we present an analysis of microstrip line with a trapezoidal dielectric ridge in multilayered media. The method employed in this characterization is called partial-boundary element method (p-BEM) which provides an efficient technique to the analysis of the structures with multilayered media. To improve the convergence of the Green's function used in the analysis with the p-BEM, we employ a technique based on a combination of the Fourier series expansion and the method of images. Treatment on convergence for the boundary integrals is also described. After this treatment, it requires typically one tenth or one hundredth of Fourier terms to obtain the same accuracy compared with the original Green's function. Numerical results demonstrate the effects on the characteristics of the microstrip line due to the existence of the dielectric ridge as well as the second layer between the ridge and the fundamental substrate.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"5 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":"121825483","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 large planar antenna consisting of an array of waveguide fed horns 由一组波导馈电喇叭组成的大型平面天线
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337654
T. Sehm, A. Lehto, A. Raisanen
{"title":"A large planar antenna consisting of an array of waveguide fed horns","authors":"T. Sehm, A. Lehto, A. Raisanen","doi":"10.1109/EUMA.1996.337654","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337654","url":null,"abstract":"A planar array antenna in which box horns are used as radiating elements is proposed. The antenna consists of two parts, one containing the feed network and the other 256 radiating elements. The radiation pattern of the single radiating element is specially designed to cancel out the sidelobes of the array due to the element spacing larger than one wavelength. The feed network is built by connecting rectangular waveguides with T-junctions. The matching of the T-junctions is improved by using rounded splitters and matching pins in the junctions. A planar antenna for the frequency range 37.0-39.5 GHz has been designed. The measured radiation pattern of a prototype antenna is extremely directive in both the E-and H-planes and a gain of 37 dBi at 39.2 GHz has been achieved. The highest sidelobes are at least 31 dB below the main beam in the H-plane and 15 dB in the E-plane.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"97 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":"123463281","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
Time-domain diakoptics active slot-ring antenna analysis using FDTD 时域偏振有源槽环天线的FDTD分析
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337608
Qiang Chen, V. Fusco
{"title":"Time-domain diakoptics active slot-ring antenna analysis using FDTD","authors":"Qiang Chen, V. Fusco","doi":"10.1109/EUMA.1996.337608","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337608","url":null,"abstract":"An FET active slot-ring antenna is used to demonstrate a time-domain diakoptics analysis of a mixed linear/non-linear circuit using the FDTD method. A novel algorithm for includ'ing a non-linear FET connected across a slotline into the FDTD computation is used to simulate large-signal active circuit behaviour. A current excitation technique which allows the source to be transparent to reflected waves is used to launch continuous time domain signals. Experimental agreement with the numerical result is achieved which confirms the accuracy of the analysis method used in this paper.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"24 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":"123607815","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
Water state modification in hydration shells of protein molecules under the microwave irradiation 微波辐照下蛋白质分子水合壳的水态改变
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337590
A. Korolev, A. I. Kostienko, A. P. Sukhorukov, I. Timoshkin, A. Pulino
{"title":"Water state modification in hydration shells of protein molecules under the microwave irradiation","authors":"A. Korolev, A. I. Kostienko, A. P. Sukhorukov, I. Timoshkin, A. Pulino","doi":"10.1109/EUMA.1996.337590","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337590","url":null,"abstract":"The experimental results of water state modification in hydration shells are presented. The new theoretical approach to the hydration shell with different permittivity and the energy deposition under microwave irradiation is applied. The calculation of excess energy deposition in the hydration shells of organic molecules is performed with the non-stationary theory of heat transfer.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"12 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":"124786186","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 novel compact balun structure for multilayer MMICs 一种新型的多层mmic紧凑平衡结构
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337675
M. Engels, R. Jansen
{"title":"A novel compact balun structure for multilayer MMICs","authors":"M. Engels, R. Jansen","doi":"10.1109/EUMA.1996.337675","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337675","url":null,"abstract":"A novel compact MMIC balun and its design methodology has been developed, and turns out to combine the good balance of a MARCHAND-type balun with the compactness of a MMIC transmission line transformer. Analysis using accurate quasi-static as well as parallel independent full-wave simulation shows good performance. Application of this component is seen for example in microwave and RF frequency conversion and power amplifiers. A novel compact balun structure for multilayer MMICs M Engels and R H Jansen Aachen University of Technology (RWTH), Dept. of El. Engineering, ITHE, Kopernikusstr.16, D-52074 Aachen, Germany. Abstract A novel compact MMIC balun and its design methodology has been developed, and turns out to combine the good balance of a MARCHAND-type balun with the compactness of a MMIC transmission line transformer. Analysis using accurate quasi-static as well as parallel independent full-wave simulation shows good performance. Application of this component is seen for example in microwave and RF frequency conversion and power amplifiers.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"12 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":"125640013","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
Prediction of tropospheric multipath effects on microwave communication system performance 对流层多径效应对微波通信系统性能的预测
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337560
H. Vasseur, D. Vanhoenacker-Janvier
{"title":"Prediction of tropospheric multipath effects on microwave communication system performance","authors":"H. Vasseur, D. Vanhoenacker-Janvier","doi":"10.1109/EUMA.1996.337560","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337560","url":null,"abstract":"A simple deterministic model is proposed to represent in a realistic way the time evolution of nocturnal refractive layers in the lower troposphere. It enables simulations of the multipath fading effects induced on both microwave terrestrial links and low-elevation satellite paths. It offers an efficient means for characterising the transmission channel and predicting the error performances of radio communication systems under tropospheric multipath conditions.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"&NA; 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":"125999825","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 novel DDS based 94 GHz high linearity FMCW RE front end 一种基于DDS的94 GHz高线性FMCW RE前端
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337537
A. Madjar, Z. Nativ, D. Adar, S. Zoref
{"title":"A novel DDS based 94 GHz high linearity FMCW RE front end","authors":"A. Madjar, Z. Nativ, D. Adar, S. Zoref","doi":"10.1109/EUMA.1996.337537","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337537","url":null,"abstract":"FMCW millimeter wave sensors are very useful for both military and civilian applications, due to their low cost, simplicity and low transmitted power. In this paper we present a novel approach to the realization of linear FMCW chirp at a frequency of 94 GHz based on a DDS (Direct Digital Synthesizer). This is a much superior method compared to the common approach using a VCO with a linearization loop, the linearity of which is limited. Our approach enables realization of a relatively low cost, small size sensor with an extremely good linearity. We demonstrated an excellent range resolution of better than 0.5 meter at a range of 1 kilometer.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"44 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":"130266243","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
Advanced MMIC technology for the next generation-3D MMICs and master-slice technology 先进的下一代MMIC技术——3d MMIC和主片技术
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337687
M. Aikawa, T. Tokumitsu, K. Nishikawa
{"title":"Advanced MMIC technology for the next generation-3D MMICs and master-slice technology","authors":"M. Aikawa, T. Tokumitsu, K. Nishikawa","doi":"10.1109/EUMA.1996.337687","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337687","url":null,"abstract":"As an advanced microwave and millimeter-wave band technology, this paper introduces \"Three-Dimensional and Master-Slice MMIC Technology.\" This approach is expected to be the basic technology for building next-generation microwave and millimeter-wave hardware. The advantages of the Master-Slice MMIC are that anyone can develop their own MMICs quickly and cheaply without special high-grade skills.","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":"127424459","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
An efficient microwave characterisation of PIN photodiodes PIN光电二极管的高效微波表征
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337747
Z. Zhu, I. Huynen, A. Vander Vorst
{"title":"An efficient microwave characterisation of PIN photodiodes","authors":"Z. Zhu, I. Huynen, A. Vander Vorst","doi":"10.1109/EUMA.1996.337747","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337747","url":null,"abstract":"This paper investigates for the first time the transmission line behaviour of a PIN photodiode at microwaves frequencies. Original theoretical models are developed for the complex propagation constant of this structure and compared with measurements carried out at U.C.L. It is shown that the classical methods found in the literature for characterising the propagation of slow waves are not efficient in this case. The general variational principle previously developed by the authors is used in a new way. Results are obtained which closely agree with the experiment. The assumptions made on the trial fields used in the variational formulation are confirmed by a fullwave analysis of the fields in the multilayered structure using the method of lines.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"118 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":"127618443","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 comparison of miniature transmission-line media for multi-level MMICs 多级mmic微型传输在线介质的比较
1996 26th European Microwave Conference Pub Date : 1996-10-01 DOI: 10.1109/EUMA.1996.337677
T. Gokdemir, U. Karacaoglu, D. Budimir, I. Robertson, Q. Wang, A. Rezazadeh
{"title":"A comparison of miniature transmission-line media for multi-level MMICs","authors":"T. Gokdemir, U. Karacaoglu, D. Budimir, I. Robertson, Q. Wang, A. Rezazadeh","doi":"10.1109/EUMA.1996.337677","DOIUrl":"https://doi.org/10.1109/EUMA.1996.337677","url":null,"abstract":"Miniature transmission-lines fabricated with a multilayer MMIC process are presented. The process produces three metal layers, separated with thin dielectric films. With three metal layers it is shown that a large number of diverse transmission-line structures can be fabricated. The properties of the key types are compared and measured results for through-lines and coupled lines are presented.","PeriodicalId":219101,"journal":{"name":"1996 26th European Microwave Conference","volume":"2016 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":"128056574","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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