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A Direct CAD Method: Microwave Tuning Varactors' Design and Analysis 一种直接CAD方法:微波调谐变容器的设计与分析
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336137
Á. Tichy-Rács, K. Kazi
{"title":"A Direct CAD Method: Microwave Tuning Varactors' Design and Analysis","authors":"Á. Tichy-Rács, K. Kazi","doi":"10.1109/EUMA.1990.336137","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336137","url":null,"abstract":"This paper describes a direct design method for microwave tuning varactor with Schottky contact, developed to realize a small relative tuning on a parallel LC circuit with a varactor diode. The method can be applied either to design/reproduce the doping profile in the varactor structure which corresponds to a given/measured frequency-voltage characteristics, or to foresee the tuning characteristics of a VCO with a given varactor. The varactor is considered as a capacitor with series resistance. The main construction parameters of the oscillator are also derived.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124611737","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
Fading Curves for the 13 GHz Frequency Band and Climatic Regions of Czechoslovakia 捷克斯洛伐克13ghz频段和气候区域的衰落曲线
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336267
V. Kvicera
{"title":"Fading Curves for the 13 GHz Frequency Band and Climatic Regions of Czechoslovakia","authors":"V. Kvicera","doi":"10.1109/EUMA.1990.336267","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336267","url":null,"abstract":"The contribution is devoted to draft of fading curves in the 13 GHz frequency band for the worst month and the average year in Czechoslovakia climatic regions. For the draft were employed the experimentally gained time distributions of rain intensities, proper practical method and results of five years propagation experiment in the 13 GHz frequency band.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128599141","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
Simple Methods for Testing the Temperature Dependence of Microstrip Antenna Arrays 测试微带天线阵列温度依赖性的简单方法
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336070
F. Mernyei, F. Volgyi
{"title":"Simple Methods for Testing the Temperature Dependence of Microstrip Antenna Arrays","authors":"F. Mernyei, F. Volgyi","doi":"10.1109/EUMA.1990.336070","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336070","url":null,"abstract":"This paper presents methods that can be used to determine the temperature dependence of microstrip antennas (MSA). The input reflection of the MSA array and the Radar Cross Section (RCS) was measured without special equipment in laboratory conditions. These experiments showed the change in resonant frequency (Fr) and antenna gain (G) versus temperature. Using the measured data, the temperature dependence of the dielectric constant of the substratum can be calculated by computer modeling.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130773347","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
Sensor for the Measurement of Pressure 压力测量传感器
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336193
M. Fischer, K. Kirjavainen, P. Vainikainen, E. Nyfors
{"title":"Sensor for the Measurement of Pressure","authors":"M. Fischer, K. Kirjavainen, P. Vainikainen, E. Nyfors","doi":"10.1109/EUMA.1990.336193","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336193","url":null,"abstract":"Preliminary tests for a sensor for measuring pressure as a function of location were performed. The sensor is a stripline with electrothermomechanical film as a substrate. The film consists of plastic with air cells. When pressure is applied on the film, the dimensions of the air cells change. When the film is used as substrate in a stripline the pressure changes the impedance of the stripline, which can be detected with a pulse or a voltage step transmitted in the line. The reflection from the impedance discontinuity gives the amplitude and the location of the pressure.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129918148","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
Theoretical and Experimental Analysis of Microwave Dielectric Resonators Active Filters 微波介质谐振器有源滤波器的理论与实验分析
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336162
B. Madrangeas, B. Jarry, P. Guillon, J. Larroque, B. Theron, D. Parise
{"title":"Theoretical and Experimental Analysis of Microwave Dielectric Resonators Active Filters","authors":"B. Madrangeas, B. Jarry, P. Guillon, J. Larroque, B. Theron, D. Parise","doi":"10.1109/EUMA.1990.336162","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336162","url":null,"abstract":"The purpose of this paper is to present theoretical and experimental results of microwave active filters using dielectric resonators (D.R.) Generally speaking, these active filters are obtained by connecting to the classical passive D.R. filters coupled to microstrip lines, an active loop composed of an amplifier and a phase shifter. The advantages of these circuits are to improve loaded Q of the D.R. and the filtering selectivity, to compensate dissipative losses and to permit an electrical tuning of resonant frequency and bandwidth [1], [2], [3]. An improved three poles D.R. active filter model has been realized including microwave passive and active circuits and tuning D.C. bloc (figure 1). No losses with a 24 MHz 3 dB bandwidth was easily obtained.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128737138","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
Rigorous Theory of Resonances in Waveguide Y-Junction Circulators 波导y结环行器谐振的严格理论
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336221
J. Krupka, W. Glogier, J. Modelski
{"title":"Rigorous Theory of Resonances in Waveguide Y-Junction Circulators","authors":"J. Krupka, W. Glogier, J. Modelski","doi":"10.1109/EUMA.1990.336221","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336221","url":null,"abstract":"Rigorous theory of resonances in ferrite loaded waveguide Y-junction is presented. This theory corresponds very well with experiments for any ferrite dimensions. It is demonstrated that circulators can operate either separately on quasi EH or HE modes or as the result of their cooperation. Role of leaky modes in broadband circulation is explained.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117120444","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
Modelling of Resistive and Geometrical Discontinuities in Microstrip Interconnections on Integrated Circuits 集成电路微带互连中电阻性和几何不连续的建模
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336318
S. Sali
{"title":"Modelling of Resistive and Geometrical Discontinuities in Microstrip Interconnections on Integrated Circuits","authors":"S. Sali","doi":"10.1109/EUMA.1990.336318","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336318","url":null,"abstract":"An algorithm suitable for the computer aided analysis of geometrical and resistive discontinuities present in microstrip interconnections on silicon integrated circuit subtrates is presented. The distortion and dispersion of an electrical pulse caused by such discontinuities as it propagates along the microstrip interconnect is investigated in detail. Studies carried out to assess the advantages of using superconducting tracks for the interconnections in integrated circuits in the presence of modal dispersion and geometry dependent discontinuities are also presented. The numerical results are demonstrated on realistic microstrip models for the interconnects with common type discontinuities which are selected from a practical VLSI prototype.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125619892","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
New Modeling Approach for High Frequency Devices: Application to Ultrafast Optically Controlled Switches 高频器件建模新方法:在超快光控开关中的应用
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336102
K. M. Connolly, S. El-Ghazaly, R. Grondin, R. Joshi
{"title":"New Modeling Approach for High Frequency Devices: Application to Ultrafast Optically Controlled Switches","authors":"K. M. Connolly, S. El-Ghazaly, R. Grondin, R. Joshi","doi":"10.1109/EUMA.1990.336102","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336102","url":null,"abstract":"In many ultrafast semiconductor devices, the effects of generated electromagnetic waves cannot be neglected. These devices can be accurately simulated by combining a direct finite difference time domain solution of Maxwell's equations with a Bipolar Monte-Carlo model of semiconductor carrier transport. This approach is utilized to investigate the response of an electro-optic switch with a subpicosecond risetime. Discussion and results showing the effects of wave propagation will also be presented.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125762191","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
Ka Band Tracking Filter for Satellite Applications 用于卫星的Ka波段跟踪滤波器
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336307
A. D'ambrosio, G. Castelli, E. Mazzola
{"title":"Ka Band Tracking Filter for Satellite Applications","authors":"A. D'ambrosio, G. Castelli, E. Mazzola","doi":"10.1109/EUMA.1990.336307","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336307","url":null,"abstract":"","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127622921","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
Phase Pattern and Phase Center Measurements of Antennas at 105-190 GHz with a Novel Differential Phase Method 基于差分相位法的105 ~ 190ghz天线相位图和相位中心测量
1990 20th European Microwave Conference Pub Date : 1990-10-01 DOI: 10.1109/EUMA.1990.336067
A. Raisanen, A. Lehto, J. Tuovinen
{"title":"Phase Pattern and Phase Center Measurements of Antennas at 105-190 GHz with a Novel Differential Phase Method","authors":"A. Raisanen, A. Lehto, J. Tuovinen","doi":"10.1109/EUMA.1990.336067","DOIUrl":"https://doi.org/10.1109/EUMA.1990.336067","url":null,"abstract":"Application of conventional antenna phase measurement methods becomes increasingly difficult above 100 GHz. Main problems are the complexity of measurement set-ups and errors caused by the flexible cables or rotary joints needed in the system. To overcome these problems a novel differential phase measurement method has been developed. It was used to measure phase center positions and phase patterns of two corrugated horns at 105-115 GHz and 176-190 GHz. Good agreement between the measured values and theoretical values, calculated with the modal matching technique, was obtained.","PeriodicalId":248044,"journal":{"name":"1990 20th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128967546","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
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