Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017889
B. Dziurdzia, S. Nowak, W. Gregorczyk, M. Ciez
Microwave circuit demands for high resolution patterning, rectangular cross-sections, sharp edges and smooth surfaces are met by the photo-imageable thick-film technology, successfully competing with traditional screen printing. This paper presents parameters of photosensitive pastes, describes the exposure and development units necessary for carrying out the photoimaging process, depicts manufacturing steps that lead to forming microwave structures with parameters comparable to thin film ones. Edge-coupled filters of centre frequency 6, 12 and 14 GHz, built with microstrip resonators, are the test samples. The transmission and reflection characteristics of filters are measured using a vector network analyser and compared to the simulated characteristics.
{"title":"Photo patterned thick-film resonators","authors":"B. Dziurdzia, S. Nowak, W. Gregorczyk, M. Ciez","doi":"10.1109/MIKON.2002.1017889","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017889","url":null,"abstract":"Microwave circuit demands for high resolution patterning, rectangular cross-sections, sharp edges and smooth surfaces are met by the photo-imageable thick-film technology, successfully competing with traditional screen printing. This paper presents parameters of photosensitive pastes, describes the exposure and development units necessary for carrying out the photoimaging process, depicts manufacturing steps that lead to forming microwave structures with parameters comparable to thin film ones. Edge-coupled filters of centre frequency 6, 12 and 14 GHz, built with microstrip resonators, are the test samples. The transmission and reflection characteristics of filters are measured using a vector network analyser and compared to the simulated characteristics.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128269197","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017981
R. Borowiec, R. Hossa, P. Słobodzian, Z. Langowski
Far-field pattern synthesis of small antenna arrays is a nontrivial problem, mainly due to mutual coupling, often precluding the use of conventional tapering algorithms. A technique to compensate for mutual coupling in small linear antenna arrays is described. The method consist of calculations of a coupling matrix, which is then used to compensate for the effects of mutual coupling. Two different methods of the calculation of coupling coefficients between the array elements are presented. In order to validate the methods, measured data for a small linear antenna array is presented and discussed.
{"title":"Compensation of mutual coupling in small antenna arrays","authors":"R. Borowiec, R. Hossa, P. Słobodzian, Z. Langowski","doi":"10.1109/MIKON.2002.1017981","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017981","url":null,"abstract":"Far-field pattern synthesis of small antenna arrays is a nontrivial problem, mainly due to mutual coupling, often precluding the use of conventional tapering algorithms. A technique to compensate for mutual coupling in small linear antenna arrays is described. The method consist of calculations of a coupling matrix, which is then used to compensate for the effects of mutual coupling. Two different methods of the calculation of coupling coefficients between the array elements are presented. In order to validate the methods, measured data for a small linear antenna array is presented and discussed.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129339261","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017976
E. Udvary, M. Csornyei, G. Maury, Y. Le Guennec
This paper reviews the characteristics and applications of semiconductor optical amplifiers (SOAs) in subcarrier multiplexed optical systems with theoretical and experimental approach. The main characteristics, application possibilities, optimal operation point from the bit error rate point of view were studied and a interesting alternative concept with semiconductor optical amplifier branching stages was suggested.
{"title":"SOAs in subcarrier multiplexed optical networks","authors":"E. Udvary, M. Csornyei, G. Maury, Y. Le Guennec","doi":"10.1109/MIKON.2002.1017976","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017976","url":null,"abstract":"This paper reviews the characteristics and applications of semiconductor optical amplifiers (SOAs) in subcarrier multiplexed optical systems with theoretical and experimental approach. The main characteristics, application possibilities, optimal operation point from the bit error rate point of view were studied and a interesting alternative concept with semiconductor optical amplifier branching stages was suggested.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127151366","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017969
J. Wiśniewski, M. Mazur
3D pulse-coherent radar with electronic beam scanning working in the C band will be the main source of information for a ship's defence systems. A functional model of this radar system has been built. The system enables automatic detection and tracking of over 100 maritime and air targets. Output data from the radar with full information about the target is transmitted to the ship's command systems or directly to automatic defence systems. Scanning in elevation is achieved using phase shifters. In azimuth it is solved by mechanical rotation and additionally by changing the frequency of the signal.
{"title":"Naval 3D radar in C band","authors":"J. Wiśniewski, M. Mazur","doi":"10.1109/MIKON.2002.1017969","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017969","url":null,"abstract":"3D pulse-coherent radar with electronic beam scanning working in the C band will be the main source of information for a ship's defence systems. A functional model of this radar system has been built. The system enables automatic detection and tracking of over 100 maritime and air targets. Output data from the radar with full information about the target is transmitted to the ship's command systems or directly to automatic defence systems. Scanning in elevation is achieved using phase shifters. In azimuth it is solved by mechanical rotation and additionally by changing the frequency of the signal.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129013636","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017913
P. N. Shumskij, S. M. Kostromitskij
Considers questions for the development of radar target identification systems subject to polarization portraits. The authors analyze the correlation of polarization portrait parameters with target characteristics. The structure of the identification system is adaptive to low-informative parameters of the received signal. An analysis is made of the potential performances of target identification subject to the statistical properties of the received signal, adaptation circuit errors and limited observation period.
{"title":"Radar target identification subject to its polarization properties","authors":"P. N. Shumskij, S. M. Kostromitskij","doi":"10.1109/MIKON.2002.1017913","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017913","url":null,"abstract":"Considers questions for the development of radar target identification systems subject to polarization portraits. The authors analyze the correlation of polarization portrait parameters with target characteristics. The structure of the identification system is adaptive to low-informative parameters of the received signal. An analysis is made of the potential performances of target identification subject to the statistical properties of the received signal, adaptation circuit errors and limited observation period.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122291439","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017963
A. Karwowski
The availability of reliable, simple procedures providing assistance in evaluating human exposure to radiofrequency fields from base station antennas is essential for mobile communications. In the paper, sample results of 'rigorous' full-wave numerical analysis of the electromagnetic field morphology in vicinity of a representative base station (BS) panel antenna are presented. Having recognized the field morphology, two simple approximate calculational models suitable for routine evaluation of exposure from BS antennas are examined and compared.
{"title":"Numerical modelling calculations for evaluating exposure to radio-frequency emissions from base station antennas","authors":"A. Karwowski","doi":"10.1109/MIKON.2002.1017963","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017963","url":null,"abstract":"The availability of reliable, simple procedures providing assistance in evaluating human exposure to radiofrequency fields from base station antennas is essential for mobile communications. In the paper, sample results of 'rigorous' full-wave numerical analysis of the electromagnetic field morphology in vicinity of a representative base station (BS) panel antenna are presented. Having recognized the field morphology, two simple approximate calculational models suitable for routine evaluation of exposure from BS antennas are examined and compared.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"353 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116130410","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017869
P. Kozakowski, M. Mrozowski
The gradient based optimization technique along with a new definition of a cost function is applied to the synthesis of coupled resonator filters. The cost function is defined using location of zeros and poles of the filter's transfer function. The topology of the structure is enforced on each step of optimization and its physical dimensions are uses as independent variables.
{"title":"Automated synthesis of coupled resonator filters with a given topology","authors":"P. Kozakowski, M. Mrozowski","doi":"10.1109/MIKON.2002.1017869","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017869","url":null,"abstract":"The gradient based optimization technique along with a new definition of a cost function is applied to the synthesis of coupled resonator filters. The cost function is defined using location of zeros and poles of the filter's transfer function. The topology of the structure is enforced on each step of optimization and its physical dimensions are uses as independent variables.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"435 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115935333","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017847
D. Budzinski, J. Kampa, J. Kus
Presents an extended range detector log video amplifier for the 2-18 GHz range usable in RWR and ESM receivers. Beside details of the logging and summing amplifier, experimental results of log linearity in the -50 dBm to +10 dBm input power range and response to short 50 ns pulses are given.
{"title":"Detector log video amplifier with 60 dB logging range","authors":"D. Budzinski, J. Kampa, J. Kus","doi":"10.1109/MIKON.2002.1017847","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017847","url":null,"abstract":"Presents an extended range detector log video amplifier for the 2-18 GHz range usable in RWR and ESM receivers. Beside details of the logging and summing amplifier, experimental results of log linearity in the -50 dBm to +10 dBm input power range and response to short 50 ns pulses are given.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121800933","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017823
V. Tatarinov, L. Ligthart, S. Tatarinov
This paper pays attention to the polarization-Doppler response function in time and spectral domain as a description for a complex radar object. The methods of partial polarization, partial coherence and their spectral description over a given bandwidth are used in the problem solution. The interest of these investigations has been increased because modern computing possibilities allow us to calculate the spectral density of the scattered field polarization parameters in real time.
{"title":"Matrix spectral form of the full polarization-Doppler response function","authors":"V. Tatarinov, L. Ligthart, S. Tatarinov","doi":"10.1109/MIKON.2002.1017823","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017823","url":null,"abstract":"This paper pays attention to the polarization-Doppler response function in time and spectral domain as a description for a complex radar object. The methods of partial polarization, partial coherence and their spectral description over a given bandwidth are used in the problem solution. The interest of these investigations has been increased because modern computing possibilities allow us to calculate the spectral density of the scattered field polarization parameters in real time.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121571883","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}
Pub Date : 2002-08-07DOI: 10.1109/MIKON.2002.1017811
A. Jakubiak
A method is described for creating a two-dimensional field of random samples with the assumed marginal pdf and specified horizontal and vertical correlation coefficients. The presented method is based on transforming the set of random features with an appropriate prepared correlation matrix, according to given schemes. A field of random samples with log-normal marginal pdf and desired horizontal and vertical correlation was created as an example of using the presented algorithm.
{"title":"Modelling of two-dimensional correlated random signal","authors":"A. Jakubiak","doi":"10.1109/MIKON.2002.1017811","DOIUrl":"https://doi.org/10.1109/MIKON.2002.1017811","url":null,"abstract":"A method is described for creating a two-dimensional field of random samples with the assumed marginal pdf and specified horizontal and vertical correlation coefficients. The presented method is based on transforming the set of random features with an appropriate prepared correlation matrix, according to given schemes. A field of random samples with log-normal marginal pdf and desired horizontal and vertical correlation was created as an example of using the presented algorithm.","PeriodicalId":372054,"journal":{"name":"14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122854730","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}
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