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Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)最新文献

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Calibration of semiconductor optical amplifier simulator for switching action prediction 用于开关动作预测的半导体光放大器模拟器的校准
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244845
C. Gallep, R. P. Vivacqua, André L. R. Cavalcanti, E. Conforti
{"title":"Calibration of semiconductor optical amplifier simulator for switching action prediction","authors":"C. Gallep, R. P. Vivacqua, André L. R. Cavalcanti, E. Conforti","doi":"10.1109/IMOC.2003.1244845","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244845","url":null,"abstract":"The calibration of a semiconductor optical amplifier simulator, based on ASE (amplified spontaneous emission)-power measurements is presented, within the optical response simulation for a pre-pulsed-step current injection technique. Good agreement was obtained between experimental and theoretical curves, suggesting that the calibration works properly.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130101887","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
Low-cost ferroelectric ceramic-polymer scan antenna 低成本铁电陶瓷-聚合物扫描天线
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244893
Y. Yashchyshyn, J. Modelski
{"title":"Low-cost ferroelectric ceramic-polymer scan antenna","authors":"Y. Yashchyshyn, J. Modelski","doi":"10.1109/IMOC.2003.1244893","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244893","url":null,"abstract":"The radiation characteristics of a new microstrip electrically controllable traveling-wave antenna are investigated, theoretically and experimentally. The substrate of this antenna is made using ceramic-polymer composite. Ceramic-polymer composite with modified ferroelectric powder Ba/sub 0.65/Sr/sub 0.35/TiO/sub 3/ and appropriate polymer have been synthesized and investigated. A time-domain method for microwave measurements of ceramic-polymer material parameters has been developed. The feasibility of dielectric scanning (changing the direction of the beam by varying the relative permittivity of the electrically controlled ceramic-polymer composite) is investigated. It shows that the beam angle changes are over 30/spl deg/.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132768268","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
Neuro modeling of microwave waveguides with EBG structures 基于EBG结构的微波波导神经建模
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244860
E. Fernandes, P. H. da Fonseca Silva, A. G. D'Assuncao, M. D. de Melo
{"title":"Neuro modeling of microwave waveguides with EBG structures","authors":"E. Fernandes, P. H. da Fonseca Silva, A. G. D'Assuncao, M. D. de Melo","doi":"10.1109/IMOC.2003.1244860","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244860","url":null,"abstract":"This work presents a new technique for analyzing microwave waveguide with electromagnetic bandgap (EBG) structures. Two types of waveguides, the rectangular waveguide and parallel plate waveguide, were modeled by neurocomputacional technique. The first waveguide uses the UC-EBG structure that consists of a metal pad and four connecting branches. This device is employed in the development of high-performance and compact circuit components for microwave and millimeter-wave frequencies. The second waveguide is formed between microstrip ground plane and metal plate with EBG elements on the top that works like one metal shield. This structure has capability of suppressing the propagation of unwanted parallel plate modes. The main objective of this work is the use of a novel ANN paradigm in modeling EBG structures. The proposed neural network model for microwave waveguides on EBG structures gave results in excellent agreement with measured results available in the literature. Besides, this technique is able to generalize for new valuables of input parameters and frequency ranges.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132924888","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
Modeling and high frequency characterization of short links for high performance integrated circuits. Experimental validation and CAD formulas 高性能集成电路短链路的建模和高频特性。实验验证和CAD公式
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244912
N. Hassaine, F. Concilio
{"title":"Modeling and high frequency characterization of short links for high performance integrated circuits. Experimental validation and CAD formulas","authors":"N. Hassaine, F. Concilio","doi":"10.1109/IMOC.2003.1244912","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244912","url":null,"abstract":"This study investigates the computing of the inductance of short links (gold wires connections). The [L] matrix calculations are performed with the potential vector given in an integral form, taking into account the current density distribution on the conductors. The Partial Element Equivalent Circuit method (PEEC) is used for this calculation. Analytical formulas easy to use in CAD are derived from the numerical results using a least square method. The formulas have been shown a very good agreement, with a precision in the order of 4%, with simulation results and with experimental results obtained on test boards in the frequency range 1 - 30 GHz.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121954514","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
New electrooptic polymer devices for microwave-photonic interactions 微波-光子相互作用的新型电光聚合物器件
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244900
H. Fetterman, K. Geary, S.-K. Kim, I. Poberezhskiy, B. Bortnik, W. Yuan, J. Han, B. Seo, T. Azfar, D. Chang, Y. Hung, C. Zhang, W. Steier
{"title":"New electrooptic polymer devices for microwave-photonic interactions","authors":"H. Fetterman, K. Geary, S.-K. Kim, I. Poberezhskiy, B. Bortnik, W. Yuan, J. Han, B. Seo, T. Azfar, D. Chang, Y. Hung, C. Zhang, W. Steier","doi":"10.1109/IMOC.2003.1244900","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244900","url":null,"abstract":"Novel devices have been demonstrated using electrooptic polymers for microwave-photonic interactions. These include MMIs (multimode interference based switches), directional couplers, poling-induced and photobleached waveguides, and passive-to-active waveguide adiabatic transitions. Applications in millimeter wave phase control, high-speed switching, linearized modulation, and optical frequency conversion are presented.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125836396","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
On the transition from light to shadow 关于从光到影的过渡
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244854
A. G. Souza, M. S. Assis
{"title":"On the transition from light to shadow","authors":"A. G. Souza, M. S. Assis","doi":"10.1109/IMOC.2003.1244854","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244854","url":null,"abstract":"The importance of the concept of penumbra width in radio propagation studies is stressed in this paper. The propagation over a smooth spherical earth is the mathematical model used for discussing the transition from light to shadow or, in other words, between interference and diffraction zones. The breakpoint between these two zones corresponds to the well-known criterion of a path clearance equal to 0.6 of the first Fresnel zone radius. It is shown here that this criterion can be related to the relative position of the penumbra width associated to each terminal.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123494489","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
Microstrip filter analysis using a set of full-domain basis functions 利用一组全域基函数分析微带滤波器
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244823
Odilon M. C. P. Filho, L. da Silva, R. Rodríguez
{"title":"Microstrip filter analysis using a set of full-domain basis functions","authors":"Odilon M. C. P. Filho, L. da Silva, R. Rodríguez","doi":"10.1109/IMOC.2003.1244823","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244823","url":null,"abstract":"This paper presents the formulation and results for microstrip filter analysis through the method of moments using full-domain basis functions at both the input and output ports, and at the resonators. Examples and comparison with available results are included.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125216158","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
A /spl Sigma/-Delta synthesizer phase noise optimization for multi-symbol rate digital microwave radio 多符号率数字微波无线电的A /spl Sigma/-Delta合成器相位噪声优化
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244914
L. Villeneuve, N. Hassaine, B. Razmpoosh
{"title":"A /spl Sigma/-Delta synthesizer phase noise optimization for multi-symbol rate digital microwave radio","authors":"L. Villeneuve, N. Hassaine, B. Razmpoosh","doi":"10.1109/IMOC.2003.1244914","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244914","url":null,"abstract":"The effect of synthesizer noise on digital radio systems performances, using a variable symbol rate modem, is analyzed. A /spl Sigma/-Delta PLL approach is used to optimize the synthesizer phase noise. In order to establish the contribution of this parameter in such systems, a comparison of integrated phase noise for different symbol rates is given. Experimental results show the advantage of a proposed synthesizer on the integrated phase noise see through the modem.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121479192","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
Space-time characterization of the mobile radio channel: an implementation of the frequency sounding technique 移动无线电信道的时空表征:频率探测技术的实现
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244832
J. Macedo, L.H. Macedo, R. Vieira, G. L. Siqueira
{"title":"Space-time characterization of the mobile radio channel: an implementation of the frequency sounding technique","authors":"J. Macedo, L.H. Macedo, R. Vieira, G. L. Siqueira","doi":"10.1109/IMOC.2003.1244832","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244832","url":null,"abstract":"This work presents the results of an estimation of the mobile radio channel space-time dispersion at 1.8 GHz, through the use of the frequency sounding technique. Some changes in the classical technique were implemented: a set of antennas known as an array was built and calibrated, and a processing algorithm of the measured signal was tested. The chosen antenna array is circular with 8 elements. Measured data were taken in a small indoor environment in the campus facility. Results accomplishing for the main propagation mechanisms in the tested scenario are reported, and the technique performance is presented and discussed.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124398663","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
Organic conducting films fabricated with ink jet printing technology and possible application in electric-field probes 用喷墨印刷技术制备有机导电薄膜及其在电场探针中的应用
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678) Pub Date : 2003-11-17 DOI: 10.1109/IMOC.2003.1244883
A. Natori, A. Frasson, A. Ceschin
{"title":"Organic conducting films fabricated with ink jet printing technology and possible application in electric-field probes","authors":"A. Natori, A. Frasson, A. Ceschin","doi":"10.1109/IMOC.2003.1244883","DOIUrl":"https://doi.org/10.1109/IMOC.2003.1244883","url":null,"abstract":"The ink jet printing (IJP) technology of organic conducting inks to be applied to the fabrication of conducting films has been demonstrated. Conducting films of (3,4-ethylenodioxythiofene)/poly(4-styrenestilfonate)-PEDOT/PSS and glycerol-modified PEDOT/PSS were deposited on different kind of plastic substrates using the ink jet printing technique. Electrical resistance measurements and atomic force microscopy (AFM) images of these conducting films were realized and a brief comment is made about their application in electric-field probes.","PeriodicalId":156662,"journal":{"name":"Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114955629","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
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