发布求助
文献互助 智能选刊 最新文献

1979 9th European Microwave Conference最新文献

筛选
英文 中文
Design and Performance of Fin-Line Bandpass Filters 鳍形线带通滤波器的设计与性能
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332737
A. Saad, K. Schunemann
{"title":"Design and Performance of Fin-Line Bandpass Filters","authors":"A. Saad, K. Schunemann","doi":"10.1109/EUMA.1979.332737","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332737","url":null,"abstract":"A transmission resonator implemented in fin-line technique is rigorously analysed by applying the method of equivalent rectangular waveguides. Based on these results, bandpass filters with up to 5 resonators are designed taking the higher-order mode coupling between the resonators into account. It is shown that this effect is of considerable importance in the design of fin-line bandpass filters.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"189 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":"132946429","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: 20
Exact Determination for the Resonant Frequencies and Fields of Dielectric Resonators 介质谐振器谐振频率和场的精确测定
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332739
J. Rousset, P. Guillon, Y. Garault
{"title":"Exact Determination for the Resonant Frequencies and Fields of Dielectric Resonators","authors":"J. Rousset, P. Guillon, Y. Garault","doi":"10.1109/EUMA.1979.332739","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332739","url":null,"abstract":"A new approach is proposed to determinate resonant frequencies and field plots of dipolar electric and magnetic modes of cylindrical dielectric resonators. It consists to solve Helmotz equation expressed in cylindrical coordinates by means of finite difference method. Results obtained are compared to those given by others methods and with experimental one's.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"93 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":"133631617","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
A High Power 15GHz GaAs FET 大功率15GHz GaAs场效应管
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332714
I. Drukier, P. Wade, J.W. Thompson
{"title":"A High Power 15GHz GaAs FET","authors":"I. Drukier, P. Wade, J.W. Thompson","doi":"10.1109/EUMA.1979.332714","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332714","url":null,"abstract":"Power performance results at 15GHz are presented for 2.4mm and 4.8mm devices. An output power 2.3 watts was achieved at 4dB gain from the 4.8mm device. A novel self-aligned technique which gives low gate resistance was used to achieve this result. Furthermore, excellent pellet power scaling allows combining of devices without excessive reduction in gain. This power scaling is obtained by flip-chip mounting on plated source posts, which gives exceptionally uniform common source inductance.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"115 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":"117136235","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
Prematched and Monolithic Amplifiers Covering 8-18 GHz 覆盖8-18 GHz的预匹配和单片放大器
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332716
R. Pengelly, J. Arnold, J. Cockrill, M. Stubbs
{"title":"Prematched and Monolithic Amplifiers Covering 8-18 GHz","authors":"R. Pengelly, J. Arnold, J. Cockrill, M. Stubbs","doi":"10.1109/EUMA.1979.332716","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332716","url":null,"abstract":"The latest gallium arsenide field effect transistors designed for low noise, small signal applications up to Q-band exhibit large |S21|2, making the design of high gain, wideband amplifiers easier. High gains over relatively large bandwidths can be obtained with the devices tuned for maximum gain or minimum noise figure. This paper describes the use of such FETs in simple microwave matching circuits consisting of 'lumped' inductors and capacitors. This enables the realization of \"internally matched transistors\" contained in miniature microwave packages for direct insertion into microstrip circuitry, and monolithic amplifiers having the matching circuits \"on chip\".","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"30 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":"125662234","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
Study on Reliability of Low Noise GaAs MESFETs 低噪声GaAs mesfet的可靠性研究
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332724
T. Suzuki, M. Otsubo, T. Ishii, K. Shirahata
{"title":"Study on Reliability of Low Noise GaAs MESFETs","authors":"T. Suzuki, M. Otsubo, T. Ishii, K. Shirahata","doi":"10.1109/EUMA.1979.332724","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332724","url":null,"abstract":"Analysis is made with regard to the failure mode of GaAs FETs and cause of the failure is investigated. It is fundamental for improving reliability of GaAs FETs to suppress the localized high electric field and the gate metal migration. The deep gate recess and the thick gate structure and the unsymmetric configuration of the gate location between source and drain are introduced. DC surge pulse capability and the RF input power capability of the improved GaAs FETs are 2 times and more than 5 times, respectively compared with conventional GaAs FETs.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"29 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":"126955140","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
Hexagonal Ferrites at Millimeter Wavelengths 毫米波长下的六方铁氧体
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332673
G. Winkler, H. Dotsch
{"title":"Hexagonal Ferrites at Millimeter Wavelengths","authors":"G. Winkler, H. Dotsch","doi":"10.1109/EUMA.1979.332673","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332673","url":null,"abstract":"Hexagonal ferrites may show a renaissance as candidates for various microwave devices in the millimeter wavelength range if perfect and low-loss materials, either bulk crystals or epitaxial layers, can be grown. Use is made of the large anisotropy fields of compounds with uniaxial magnetic anisotropy. These intrinsic anisotropy fields together with the applied external field provide the condition for FMR at these high frequencies. A survey is given of the current state of the technology. Since the feasibility of growing large and perfect hexagonal substrate crystals has been demonstrated increased effort in the deposition technology is justified, since not only microwave but also bubble applications can be envisaged.","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":"120936956","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
The Performance of the Square and Conical Corrugated Horns as Monopulse Feeds in the Millimetric Band 方形和锥形波纹角作为单脉冲馈源在毫米波段的性能
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332698
L. Sakr, A. Sarremejean
{"title":"The Performance of the Square and Conical Corrugated Horns as Monopulse Feeds in the Millimetric Band","authors":"L. Sakr, A. Sarremejean","doi":"10.1109/EUMA.1979.332698","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332698","url":null,"abstract":"A theoritical and a practical study of both of horns have been made to show their performance in the millimetric band. A conical corrugated horn terminating a circular corrugated waveguide, which can support the tracking modes, was constructed. Also a square corrugated horn terminating four waveguides was studied and constructed. A comparison between the theoritical and the practical results, also between the performance of both types of horns as monopulse feeds, has been made.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"72 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":"126349685","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
Rectangular Waveguides of the "Hollow Dielectric Canal" Class “空心介电管”类矩形波导
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332756
Y. Kazantsev, O. A. Kharlashkin
{"title":"Rectangular Waveguides of the \"Hollow Dielectric Canal\" Class","authors":"Y. Kazantsev, O. A. Kharlashkin","doi":"10.1109/EUMA.1979.332756","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332756","url":null,"abstract":"This paper describes a number of oversized rectangular waveguides with impedance walls, so-called \"the hollow dielectric canal waveguides\" (EDC-waveguides). Attenuation in HDC-waveguides reduces with decreasing the wavelength, that makes it possible to use these waveguides in millimetre, sub-millimetre and infrared waveranges. Besides, some results of investigation of wave transmission through the regular and irregular HDC-waveguides are considered, and several waveguide components are represented.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"2 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":"130675626","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
The Conversion Gain and Stability of MESFET Gate Mixers MESFET栅极混频器的转换增益和稳定性
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332721
G. Begemann, Andreas Hecht
{"title":"The Conversion Gain and Stability of MESFET Gate Mixers","authors":"G. Begemann, Andreas Hecht","doi":"10.1109/EUMA.1979.332721","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332721","url":null,"abstract":"The conversion gain of MESFET gate mixers has been calculated based on the directly measurable S- und Y-parameters, respectively. The analytical results show that parasitic mixing products can be neglected and that the reactions can be suppressed by shorting the IF at the gate and the signal, image, and sum frequency at the drain. The gain which has been measured at a 3.8 GHZ microstrip mixer agrees closely with the one which has been calculated. For a stable and low noise operation it is essential to short all the mixing frequencies except the IF at the drain and the signal at the gate.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"72 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":"131962064","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: 14
Broadband Phase Modulator with a Branch Line Coupler - Transformer 带分支线耦合器-变压器的宽带相位调制器
1979 9th European Microwave Conference Pub Date : 1979-10-01 DOI: 10.1109/EUMA.1979.332755
J. Komisarczuk
{"title":"Broadband Phase Modulator with a Branch Line Coupler - Transformer","authors":"J. Komisarczuk","doi":"10.1109/EUMA.1979.332755","DOIUrl":"https://doi.org/10.1109/EUMA.1979.332755","url":null,"abstract":"The paper presents a way and results of the computer aided optimization of the phase modulators to attain almost flat phase shift about the centre frequency. the modulator consists of the branch line coupler-transformer and of PIN diodes. There are many parameters of the circuit, namely structure and transformation coefficient of the coupler, lengths and characteristic impedances of the lines with diodes which oan be adjusted to attain optimum characteristics of the modulator. A program of the analysis and synthesis using the matrix techniques has been developed. Computs, tion results have shown that one can made the phase modulator for 180 and 90 degrees phase shifts with the deviation not greater than 2 degrees in the 15 per cent operating frequency band. Experimental results have shown a good agreement with the developed theory.","PeriodicalId":128931,"journal":{"name":"1979 9th European Microwave Conference","volume":"54 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":"128992223","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信