12th International Conference Microwave and Telecommunication Technology最新文献_第2页

A way to improve the field of view of the radiotelescope with a dense focal plane array 一种利用密集焦平面阵列改善射电望远镜视场的方法

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137238

M. Ivashina, J.D.B.A. van Ardenne

{"title":"A way to improve the field of view of the radiotelescope with a dense focal plane array","authors":"M. Ivashina, J.D.B.A. van Ardenne","doi":"10.1109/CRMICO.2002.1137238","DOIUrl":"https://doi.org/10.1109/CRMICO.2002.1137238","url":null,"abstract":"We consider a problem of increasing the field of view (FOV) of the radio telescope by means of multi beam performance of the prime focus hybrid reflector systems. It was shown that array feeds of waveguide and horn elements currently used cannot provide closely spaced beams over a wide FOV and a high aperture efficiency in each beam due to the element spacing restrictions imposed by a size of the element aperture. We proposed a feed design in a form of an integrated dense array with a small physical size of the grid element and a volumetric form of the array element. For the feed, the original excitation system of the array elements has been developed to perform the desirable beam illumination pattern with low spillover level. The results have been obtained both for theoretical and experimental radiation patterns of the array feed. Scanning and multi beam capabilities and limitations of the hybrid reflector antenna have been investigated on the basis of the focal field distribution analysis. As an example, 0.35 F/D ratio reflector (Westerbork Telescope) has been considered. It has been shown that the proposed array antenna is a good candidate be used as the feed to improve the properties of source images by the reflector systems and therefore to increase the FOV of the radio telescope.","PeriodicalId":378024,"journal":{"name":"12th International Conference Microwave and Telecommunication Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116330567","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: 34

30 GHz ferroelectric phase-shifter on the basis of loaded microstrip line 基于负载微带线的30ghz铁电移相器

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137281

A. Ivanov, O.I. Soldatenkov, N. Samoilov, S. Augunova, A. Tumarkin, Kyung-Yong Kim

引用次数: 0

Concentrated interference control in the open analog radio channels 开放模拟无线电信道中的集中干扰控制

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137233

E.F. Baburov, O.V. Siobodnyuk

引用次数: 0

Autodistracktoric treatment of locomotor apparatus dysfunction by microwave stimulation of tissue regeneration 微波刺激组织再生的自舒张治疗运动器官功能障碍

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137153

B. Dmitriyev, L. Zavgorodny, V. Pokatayev, V. Tkalych, Y. Litvinov, V. Kozlov, A. Kuchnirenco, I. Chabanenco, A. Yatsunenko, P. Zabolotny, B. Nalivaiko

{"title":"Autodistracktoric treatment of locomotor apparatus dysfunction by microwave stimulation of tissue regeneration","authors":"B. Dmitriyev, L. Zavgorodny, V. Pokatayev, V. Tkalych, Y. Litvinov, V. Kozlov, A. Kuchnirenco, I. Chabanenco, A. Yatsunenko, P. Zabolotny, B. Nalivaiko","doi":"10.1109/CRMICO.2002.1137153","DOIUrl":"https://doi.org/10.1109/CRMICO.2002.1137153","url":null,"abstract":"This report considers the rehabilitation of people with locomotor apparatus dysfunction including those diseases complicated by inflammatory processes. The proposed system provides required mutual location of fracture separate fragments as well as their movement by three independent actuators with unique kinematics. The actuators generate specified movement velocity of either of three kinematics pairs within the range 0.05-5 mm/24 hours. We have proposed unique methods of bone tissue stimulation by microwaves with radiation intensity up to 10 mW/cm/sup 2/. Experimental models of the autodistracktoric system with microwave stimulation of regeneration in combination with simulation by a constant magnetic field and microelectrophoresis in biologically active points (e.g. using mumye solution) are patented in Ukraine. Some experimental laboratory elements of the autodistracktoric system have been manufactured and tested. The following tasks are to be fulfilled: development of both schematic and structure of the automatic autodistracktoric system, providing movement of separate fracture fragments to optimize the bones knitting; wide introduction of elements stimulating processes of tissues regeneration, where the regeneration is accelerated by 10 times owing to the complex influence on the fracture region and biologically active points of various physical factors, such as microwave radiation, constant magnetic fields, and microelectrophoresis; development of a system for domestic utilization; manufacture of autodistracktoric system pilot models, testing, and preparation of documents for batch production.","PeriodicalId":378024,"journal":{"name":"12th International Conference Microwave and Telecommunication Technology","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134272666","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

Development of the numerical code for researching a virtual cathode in a group ion accelerator 群离子加速器虚阴极数值研究程序的开发

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137321

P. Markov, I. Onishchenko, G. Sotnikov

引用次数: 0

Random coding application in broadband communication systems 随机编码在宽带通信系统中的应用

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137221

V. V. Kislov, R. Belyayev, V. Kalinin, V. Kolesov

引用次数: 0

Autonomous Doppler radar meter of transport movement parameters 自动多普勒雷达运输运动参数计

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137363

Y.I. Budaretskiy, A. Zubkov, V.P. Kovalyov, S.N. Neporada, I.D. Ladnich

引用次数: 0

A new circuit for stabilizing frequencies of low noise millimeter wave oscillators 一种稳定低噪声毫米波振荡器频率的新电路

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137184

A. Kosov, V. Zotov, V.M. Vaid-Perlov

引用次数: 0

Clock systems of reference generators in communication networks of Ukraine 乌克兰通信网络中参考发生器的时钟系统

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137218

I. Antipov, V. V. Bavykina, Y. Koval', G. Nesterenko

引用次数: 0

Radiotelescopes for observation of /spl mu/S pulsations of solar radiation 用于观测太阳辐射脉动的射电望远镜

12th International Conference Microwave and Telecommunication Technology Pub Date : 2002-09-09 DOI: 10.1109/CRMICO.2002.1137366

Y. Yurovsky

引用次数: 0