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1979 9th European Microwave Conference最新文献

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Millimetre Wave Finline Balanced Mixers 毫米波鳍线平衡混频器
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332667
R. N. Bates, M. Coleman
{"title":"Millimetre Wave Finline Balanced Mixers","authors":"R. N. Bates, M. Coleman","doi":"10.1109/EUMA.1979.332667","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332667","url":null,"abstract":"This paper describes the design and performance of balanced mixers for use in the frequency ranges 27 to 40 GHz and 60 to 90 GHz. The transmission medium used is integrated finline which is potentially cheap to produce and has lower loss than microstrip while remaining compatible with beam lead diodes. The performance obtained is comparable with that obtained using conventional techniques but the low cost circuit technology is suitable for mass production.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131208372","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: 12
A 10W IMPATT Diode Amplifier for X-Band Communication Systems 用于x波段通信系统的10W输入二极管放大器
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332769
P. Huish, W. Thorpe
{"title":"A 10W IMPATT Diode Amplifier for X-Band Communication Systems","authors":"P. Huish, W. Thorpe","doi":"10.1109/EUMA.1979.332769","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332769","url":null,"abstract":"","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"250 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115589232","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
120-Mbit/s, 6 GHz On-Board Waveform Regenerator for Communications Satellites 用于通信卫星的120mbit /s、6ghz星载波形再生器
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332702
T. Shimamura, I. Eguchi, F. Assal
{"title":"120-Mbit/s, 6 GHz On-Board Waveform Regenerator for Communications Satellites","authors":"T. Shimamura, I. Eguchi, F. Assal","doi":"10.1109/EUMA.1979.332702","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332702","url":null,"abstract":"A lightweight, low-power-consuming, differentially-coherent four-phase-shift-keyed (DQPSK) on-board waveform regenerator (OBWR) was developed for communications satellites in the 6 GHz up-link frequency band to process 120 Mb/s time-division multiple access (TDMA) signals. The most critical element in the design of the 6 GHz DQPSK-OBWR is the one-bit (16.67 nsec) delay line which was fabricated in a lightweight MIC configuration using barium-tetratitanate substrates to provide an RF-phase stability of less than ±l.5° over operating temperature variations of at least ±15°C. Using a ±35 MHz bandpass filter (see section 4) and for OBWR temperatures ranging from 10°C to 40°C, all the measured bit-error-rate performance characteristics are within 0.7 dB from theory.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115926575","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
On the Theory of Printed Wire Antennas 印刷线天线理论研究
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332660
I. Rana, N. Alexopoulos
{"title":"On the Theory of Printed Wire Antennas","authors":"I. Rana, N. Alexopoulos","doi":"10.1109/EUMA.1979.332660","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332660","url":null,"abstract":"In this paper, the theory of wire antennas printed on grounded dielectric substrates is presented. Pocklington's integral equation is solved by Moment Methods to obtain the current distribution of printed wire dipoles, including printed dipoles in array configurations. Essential to the analysis is the correct solution of Sommerfeld type integrals for field and source points located on the substrate. The antenna characteristics such as input and mutual impedance, as well as radiation patterns will be discussed. The importance of surface wave modes will also be emphasized.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133012654","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: 12
An FMCW Radar for Accurate Level Measurements 用于精确液位测量的FMCW雷达
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332665
O. Edvardsson
{"title":"An FMCW Radar for Accurate Level Measurements","authors":"O. Edvardsson","doi":"10.1109/EUMA.1979.332665","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332665","url":null,"abstract":"The system is intended for tank level measurements and is based on a single linear sweep. By the use of a coaxial cable as a reference and a special calculating process a good accuracy and noise immunity is obtained. The accuracy is typical 0,05 % or 5 mm over a 0-60 m range. One problem with the application is the discrimination of false echoes which is done by a narrow antenna beam, an amplitude threshold and a filter. The calculation and the filtering is insensitive to unlinearities.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121179827","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
Characteristric Impedance Analysis of Multi-Conductor Transmission Line of Arbitrary Shape 任意形状多导体传输线的特性阻抗分析
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332760
L. Linner
{"title":"Characteristric Impedance Analysis of Multi-Conductor Transmission Line of Arbitrary Shape","authors":"L. Linner","doi":"10.1109/EUMA.1979.332760","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332760","url":null,"abstract":"The proposed method makes use of conformal mapping technique for a transformation in two steps of multiconductor transmission 1 ines with homogeneous filling. The first mapping is done from a quite arbitrarily shaped conductor set to the upper half-plane with the conductors along the boundary line. The second step is a transformation to a rectangular region with two opposite conductors and magnetic sidewalls to achieve a homogeneous field configuration. The rest of the conductors are transformed into double-sided parallel slits in the magnetic walls. Therefore they do not disturb the homogeneous field if they are given the proper potential. This configuration is used for the computation of the wave impedance matrix. Analysis and synthesis as well is possible by this method.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116628764","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
Multiport Lumped Element Circulators 多端口集总元素循环器
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332728
U. Kitlinski
{"title":"Multiport Lumped Element Circulators","authors":"U. Kitlinski","doi":"10.1109/EUMA.1979.332728","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332728","url":null,"abstract":"Up to now lumped element circulators with more than three ports have been built only as a cascade connection of 3-port circulators. Now, a new conception of the single - junction multiport circulator which contains n-port nonreciprcoal junction is presented. The immitance matrices of the ideal nonreciprocal junction are derived and the structures and equivalent circuits for real 4-port and 5-port junctions are proposed. The experimental results for 4-port and 5-port single junction lumped element circulators are presented.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123788330","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
Minimum Frequency Noise in Oscillators Applying an Overcoupled Cavity 应用过耦合腔的振荡器的最小频率噪声
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332642
T. Berceli
{"title":"Minimum Frequency Noise in Oscillators Applying an Overcoupled Cavity","authors":"T. Berceli","doi":"10.1109/EUMA.1979.332642","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332642","url":null,"abstract":"Frequency noise in oscillators can be reduced by circuit methods. According to our recent results, a significant reduction in frequency noise has been achieved by an overcoupled cavity. In comparison to a single cavity oscillator, the noise reduction is 10 dB with kQ2=2, and 23 dB with kQ2=5. In the experiments with a coupled cavity Gunn oscillator, an FM signal-to-noise ratio of 85 dB has been attained using visometric weighting.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116773375","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
The Canonical Coupler : A New Approach to Microwave Coupler Design 典型耦合器:微波耦合器设计的新方法
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332753
P. R. Rigg, J. Carroll
{"title":"The Canonical Coupler : A New Approach to Microwave Coupler Design","authors":"P. R. Rigg, J. Carroll","doi":"10.1109/EUMA.1979.332753","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332753","url":null,"abstract":"Mutually coupled transmission lines are described by inductance and capacitance matrices. Such a system can be reduced to a canonical matrix form which provides the basis for a new design technique. Expressions are given for the scattering parameters in terms of the line parameters enabling realisable couplers to be designed. To demonstrate the technique 2 GHz comb and herringbone line couplers are constructed with nearest neighbour interaction in the capacitance matrix and a diagonal inductance matrix. At present a two-line codirectional coupler and a three-line balun, both with equal power division, have been successfully constructed.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125126420","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
Microwave Bipolar Transistor Technology - Present and Prospects 微波双极晶体管技术的现状与展望
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332672
C. Snapp
{"title":"Microwave Bipolar Transistor Technology - Present and Prospects","authors":"C. Snapp","doi":"10.1109/EUMA.1979.332672","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332672","url":null,"abstract":"This paper reviews the present status and future prospects for Si bipolar transistors and monolithic integrated circuits designed for applications at frequencies above 500MHz. The technological limitations on performance are discussed as well as the fundamental strengths and basic terminal characteristics which insure that bipolar transistors and integrated circuits will continue to offer the most cost-effective solutions to many microwave system design problems in the coming decade of the 1980's.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121878417","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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