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1977 7th European Microwave Conference最新文献

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Hybrid M.I.C. Digital Frequency Dividers at 4,5 and 9 GHz 混合M.I.C.数字分频器在4,5和9ghz
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332425
J. Noordanus
{"title":"Hybrid M.I.C. Digital Frequency Dividers at 4,5 and 9 GHz","authors":"J. Noordanus","doi":"10.1109/EUMA.1977.332425","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332425","url":null,"abstract":"A digital divider is described which allows division by a factor 2 at an input frequency of 4,5 GHz and divides a factor 4 with an input frequency of 9 GHz. These results are obtained by using a thin film circuit of small dimensions, combined with beam lead components and chip bipolar transistors. The experiments indicate that the lumped element approach is now practically feasible up to 10 GHz. Some remarks about application of the circuit and future possibilities are given.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115278700","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 New Class of Dual-Mode Microwave Filters for Space Application 一种新型空间双模微波滤波器
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332404
S. Kallianteris, C. Kudsia, M. Swamy
{"title":"A New Class of Dual-Mode Microwave Filters for Space Application","authors":"S. Kallianteris, C. Kudsia, M. Swamy","doi":"10.1109/EUMA.1977.332404","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332404","url":null,"abstract":"A new class of direct-coupled cavity bandpass filters having the same number of equi-ripple attenuation-zeros as the order of the filter and an attenuation-pole on either side of passband is described. Filters are configured in dual-mode structure operating in the dominant or higher order modes. Synthesis is accomplished using optimization techniques. Experimental results for a sixth order filter at 12 GHz agree closely with the dicted response. The simplicity of structure and the sharp cutoff characteristics make this class of filters most promising for the multiplexing networks of communications satellites.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129712657","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
An Experimental Evaluation of X-Band Mixers using Dual-Gate GaAs Mesfets 双栅GaAs mesfet x波段混频器的实验评价
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332410
S. Cripps, O. Nielsen, D. Parker, J. Turner
{"title":"An Experimental Evaluation of X-Band Mixers using Dual-Gate GaAs Mesfets","authors":"S. Cripps, O. Nielsen, D. Parker, J. Turner","doi":"10.1109/EUMA.1977.332410","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332410","url":null,"abstract":"Experimental results are presented for X-band GaAs MESFET mixers using a dual-gate device. This device combines high conversion gain and low noise operation with the convenient feature that the RF and local oscillator signals can be applied to the separate gates. Biased near pinch off a one micron gate MESFET in a 'disc' tuned circuit has yielded 11 dB of conversion gain and 6.5 dB noise figure (DSB) at 10 GHz with an IF of 30 MHz. Using an IF of 150 MHz a noise figure of 5.2 dB with 8 dB of conversion gain has been obtained.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128761522","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: 10
A New Low Noise Front End for Millimeter Wave Transponders 一种新型毫米波应答器低噪声前端
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332489
A. D'ambrosio
{"title":"A New Low Noise Front End for Millimeter Wave Transponders","authors":"A. D'ambrosio","doi":"10.1109/EUMA.1977.332489","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332489","url":null,"abstract":"Theoretical premises and specific design considerations of parametric down converters are analyzed and their possible use on millimeter wave transponders is considered with respect to other solutions. The results of a laboratory prototype, operating between 14 and 11 GHz, are also given and discussed.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125913806","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
Circuit Techniques for Gigabit/s Digital Communication Systems 千兆数字通信系统的电路技术
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332480
J. Coughlin, R. Harbott, J. Hughes, F. Siegert
{"title":"Circuit Techniques for Gigabit/s Digital Communication Systems","authors":"J. Coughlin, R. Harbott, J. Hughes, F. Siegert","doi":"10.1109/EUMA.1977.332480","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332480","url":null,"abstract":"This paper describes how mono1ithical1y integrated transistor pairs are used as hybrid circuit components to produce Gbit/s performance in digital communications equipment. The transistor technology results in a peak fT of 5GHz and includes gold beam-leads for easy circuit assembly. When used as current mode switches the pairs exhibit propagation delays and edge times of 350ps. The circuit technique is demonstrated in a number of key functions for regenerative repeaters and terminal/test equipment. These include clock extraction (phase detector), data regeneration (decision flip-flop), and multiplexing, all performing at IGbit/s. The multiplexer is used to seria1ise four lower speed data streams generated from a commercially available logic family and it is concluded that a new Gbit/s logic family may be unnecessary for this application.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123188970","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
High Power Static Induction Transistor for Microwave Operation 微波工作用大功率静电感应晶体管
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332370
Y. Kajiwara, Y. Yukimoto, K. Shirahata
{"title":"High Power Static Induction Transistor for Microwave Operation","authors":"Y. Kajiwara, Y. Yukimoto, K. Shirahata","doi":"10.1109/EUMA.1977.332370","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332370","url":null,"abstract":"A new type of transistor called \"Static Induction Transistor (SIT)\", by operation of majority carrier injection, has been successfully verified as a promising device for microwave high power operation. By using a novel structure and a process technique, the following remarkable results were obtained; (1) fmax of above 5 GHz, (2) amplifying power of 24 watts at 1 GHz, and (3) oscillating power of 100 watts at 200 MHz. The SIT showed a good linearity for power amplification and thermal stability for multi-chips operation.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133708177","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
The Modal Spectrum of Ferrite-Loaded Striplines, II 铁氧体加载带状线的模态谱，2
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332372
D. Bolle
{"title":"The Modal Spectrum of Ferrite-Loaded Striplines, II","authors":"D. Bolle","doi":"10.1109/EUMA.1977.332372","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332372","url":null,"abstract":"This paper expands upon earlier results obtained for the dispersion characteristics and modal structure of a waveguiding geometry which models the inhomogeneously ferrite load stripline. These results strongly indicate that components presumed to employ the edge-guided or peripheral mode to obtain isolation in fact utilize a disturbed dynamic wave guiding mode which, in the vicinity and within the region where the effective permeability is negative, assumes a quasi-surfacewave structure. Only through the use of this mode can the intrinsic broad band behavior of these devices be explained and advanced.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"162 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129201750","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
All Solid State 1800-Channel Transmitter-Receiver for 6 ~ 8 GHZ Radio Relay Systems 用于6 ~ 8 GHZ无线电中继系统的全固态1800通道收发机
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332445
N. Kusama, K. Sakamoto, T. Kyuzaki, K. Kinoshita
{"title":"All Solid State 1800-Channel Transmitter-Receiver for 6 ~ 8 GHZ Radio Relay Systems","authors":"N. Kusama, K. Sakamoto, T. Kyuzaki, K. Kinoshita","doi":"10.1109/EUMA.1977.332445","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332445","url":null,"abstract":"This paper describes an all solid-state heterodyne transmitter-receiver in the 6 to 8 GHz band with a capacity of up to 1800 telephone channels. The equipment is fitted with an NEC-0.5 micron gate GaAs MESFET pre-RF amplifier having a noise figure of less than 2.5 dB at 6 GHz, and with an RF amplifier formed by two Si DDR IMPATT diodes for producing an output of 4W. After the discussion of thermal noise and intermodulation noise, the results of the system test are described. In the system test conducted for six hops in the 8 GHz band, a 0.9 pWop/km for 1800 telephone channels was achieved.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"72 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131411882","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
Design and Performance of Low Noise C -and X - Band GaAs FET Mixers 低噪声C和X波段GaAs FET混频器的设计和性能
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332409
B. Loriou, J. Leost
{"title":"Design and Performance of Low Noise C -and X - Band GaAs FET Mixers","authors":"B. Loriou, J. Leost","doi":"10.1109/EUMA.1977.332409","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332409","url":null,"abstract":"Different configurations of MESFET mixers are compared in the 6 GHz band for intermediate frequencies ranging from 30 MHz to 1.5 GHz. Conversion gain of 10 dB associated with 4 dB SSB noise figure have been achieved. Results will be presented concerning a balanced module made up of two such mixers, image termination effect, cooling and the influence of 1/f noise. At 12 GHz, preliminary results obtained are 3.5 dB conversion gain and a 7.5 dB SSB noise figure.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115766440","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
The Elliptic Microstrip Ring Resonator 椭圆微带环形谐振器
1977 7th European Microwave Conference Pub Date : 1977-10-01 DOI: 10.1109/EUMA.1977.332469
J. Kretzschmar
{"title":"The Elliptic Microstrip Ring Resonator","authors":"J. Kretzschmar","doi":"10.1109/EUMA.1977.332469","DOIUrl":"https://doi.org/10.1109/EUMA.1977.332469","url":null,"abstract":"The characteristic equation for the resonant modes in a confocal elliptic microstrip ring resonator is derived. Numerical results for the dominant mode are given as a function of the dimensions of the confocal elliptical boundaries.","PeriodicalId":369354,"journal":{"name":"1977 7th European Microwave Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124718199","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
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