Pub Date : 2009-11-01DOI: 10.1109/MMS.2009.5409825
M. Violas, Ruben de Sousa
Optical single side band is a format that proves to be very efficient when dispersion is present in the fiber. This paper reports the construction and optimization of a Broadband Optical Single Sideband Prototype. We present our work in the implementation of optical single-sideband (OSSB) modulation and in the application of this modulation format for baseband transmission and microwave photonics. We report on the optimization of an Optical Single Sideband (OSSB) prototype transmitter 10 Gbit/s data rates. The system robustness to chromatic dispersion as well as the efficiency of the electric chromatic dispersion compensation were evaluated and reported.
{"title":"Optical Single Side band modulator based on dual arm MZM and aplications","authors":"M. Violas, Ruben de Sousa","doi":"10.1109/MMS.2009.5409825","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409825","url":null,"abstract":"Optical single side band is a format that proves to be very efficient when dispersion is present in the fiber. This paper reports the construction and optimization of a Broadband Optical Single Sideband Prototype. We present our work in the implementation of optical single-sideband (OSSB) modulation and in the application of this modulation format for baseband transmission and microwave photonics. We report on the optimization of an Optical Single Sideband (OSSB) prototype transmitter 10 Gbit/s data rates. The system robustness to chromatic dispersion as well as the efficiency of the electric chromatic dispersion compensation were evaluated and reported.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121100471","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409761
Y. Salih-Alj, C. Despins, S. Affes
Ultra-wideband (UWB) communication systems provide very high data rates by transmitting extremely short duration pulses. The impulse waveform is one of the key factors that influence the performance of these systems. While fulfilling the FCC spectral emission requirements, the pulse shape must offer high detection capabilities with suitable levels of accuracy. In this paper, various pulse shapes are considered within a computationally-efficient fast acquisition system under different scenarios of interference and Gaussian noise in extensive Monte-Carlo simulations. The results show the 4th order Gaussian derivative as the most suitable pulse shape for this new UWB fast acquisition system suggested for ranging in a peculiar confined environment, which offers very acceptable positioning error range at high levels of noise and interference, while also yielding greatly reduced complexity and acquisition time.
{"title":"On the ranging performance in an underground mine using an ultra-wideband fast acquisition system","authors":"Y. Salih-Alj, C. Despins, S. Affes","doi":"10.1109/MMS.2009.5409761","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409761","url":null,"abstract":"Ultra-wideband (UWB) communication systems provide very high data rates by transmitting extremely short duration pulses. The impulse waveform is one of the key factors that influence the performance of these systems. While fulfilling the FCC spectral emission requirements, the pulse shape must offer high detection capabilities with suitable levels of accuracy. In this paper, various pulse shapes are considered within a computationally-efficient fast acquisition system under different scenarios of interference and Gaussian noise in extensive Monte-Carlo simulations. The results show the 4th order Gaussian derivative as the most suitable pulse shape for this new UWB fast acquisition system suggested for ranging in a peculiar confined environment, which offers very acceptable positioning error range at high levels of noise and interference, while also yielding greatly reduced complexity and acquisition time.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122949675","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409797
M. B. Ben Salah, N. Ghannay, F. Romdhani, A. Samet
Planar guiding structures are analyzed using a Mixed-Potential Integral-Equation formulation (MPIE) solved by the method of moments (MoM). Closed-form two-dimensional Green's functions for the scalar and vector potentials are analytically obtained in the space domain due to the approximation of its spectral-domain version with Discrete Complex Images Method (DCIM), thus avoiding lengthy numerical evaluations. It will be shown that a suitable choice of the sampling path is key to reducing the number of images and to avoiding the necessity of extracting spectral poles. The advantages of this approach will be illustrated by numerical results.
{"title":"Efficient application of the Discrete Complex Images Method in the analysis of planar guiding structures","authors":"M. B. Ben Salah, N. Ghannay, F. Romdhani, A. Samet","doi":"10.1109/MMS.2009.5409797","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409797","url":null,"abstract":"Planar guiding structures are analyzed using a Mixed-Potential Integral-Equation formulation (MPIE) solved by the method of moments (MoM). Closed-form two-dimensional Green's functions for the scalar and vector potentials are analytically obtained in the space domain due to the approximation of its spectral-domain version with Discrete Complex Images Method (DCIM), thus avoiding lengthy numerical evaluations. It will be shown that a suitable choice of the sampling path is key to reducing the number of images and to avoiding the necessity of extracting spectral poles. The advantages of this approach will be illustrated by numerical results.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116878463","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 : 2009-11-01DOI: 10.1109/ICSCS.2009.5414149
S. Tedjini, S. Gaoua, R. Touhami, M. Yagoub, A. Bellaouar
In this paper, an improved version of the digital calibration method for carrier leakage, which is caused by the DC offset on direct conversion transmitter, is proposed. We have used a power detector for estimating the DC offset. After, we have injected a compensation voltage for eliminating this DC offset. In order to validate our technique, a new direct conversion transmitter that operates at 2GHz, is proposed. The simulation and the implementation of the calibration were performed using the Agilent - ADS software.
{"title":"Carrier leakage calibration in DCT","authors":"S. Tedjini, S. Gaoua, R. Touhami, M. Yagoub, A. Bellaouar","doi":"10.1109/ICSCS.2009.5414149","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5414149","url":null,"abstract":"In this paper, an improved version of the digital calibration method for carrier leakage, which is caused by the DC offset on direct conversion transmitter, is proposed. We have used a power detector for estimating the DC offset. After, we have injected a compensation voltage for eliminating this DC offset. In order to validate our technique, a new direct conversion transmitter that operates at 2GHz, is proposed. The simulation and the implementation of the calibration were performed using the Agilent - ADS software.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121599381","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409795
J. Illescas, E. Jarauta, A. Estevez, A. Marcotegui, F. Falcone
In this work, a negative-ϵ equivalent response medium is proposed in stripline technology. To achieve band rejection behaviour, Complementary Split Ring Resonators (CSRR) are placed in the central conductor strip of a conventional stripline planar transmission line. Due to strong normal electric field incidence, adequate excitation of the stripline is achieved, leading to band rejection in the quasi-static resonance frequency of the CSRR particles. Full wave simulation results from our own FDTD code and measurement results are presented, showing good agreement.
{"title":"Implementation of effective negative ɛ transmission line in stripline technology","authors":"J. Illescas, E. Jarauta, A. Estevez, A. Marcotegui, F. Falcone","doi":"10.1109/MMS.2009.5409795","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409795","url":null,"abstract":"In this work, a negative-ϵ equivalent response medium is proposed in stripline technology. To achieve band rejection behaviour, Complementary Split Ring Resonators (CSRR) are placed in the central conductor strip of a conventional stripline planar transmission line. Due to strong normal electric field incidence, adequate excitation of the stripline is achieved, leading to band rejection in the quasi-static resonance frequency of the CSRR particles. Full wave simulation results from our own FDTD code and measurement results are presented, showing good agreement.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121606975","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409811
S. Alavirad, M. Shabani, A. Naqavi, A. A. Shishegar
We use the 3D vectorial Gaussian beam tracing method to model millimeter wave propagation. We simulate the propagation of Gaussian beams in a large scale environment at 62.4 GHz. First, a known far field pattern of the transmitter antenna is expanded into a set of Gaussian beams. We chose Gabor expansion based method to expanding radiating field into Gaussian beams. Then, a Gaussian beam tracing model considering reflections and transmission is used to represent urban microcell propagation. We use a phase matching method to find reflected Gaussian beam The results of the Gaussian beam tracing simulations including line-of-sight (LOS) and non-line-of-sight (NLOS) propagation are compared with the results of the ray tracing method. The results are in good agreement with results of ray tracing technique on the same geometry. Overall coverage map shows the dominant effect of shadowing in the millimeter wave band. The tracing technique is faster and more promising compared to exhausted ray tracing methods.
{"title":"Vectorial Gaussian beam tracing method for millimeter wave propagation modelling in a large scale media","authors":"S. Alavirad, M. Shabani, A. Naqavi, A. A. Shishegar","doi":"10.1109/MMS.2009.5409811","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409811","url":null,"abstract":"We use the 3D vectorial Gaussian beam tracing method to model millimeter wave propagation. We simulate the propagation of Gaussian beams in a large scale environment at 62.4 GHz. First, a known far field pattern of the transmitter antenna is expanded into a set of Gaussian beams. We chose Gabor expansion based method to expanding radiating field into Gaussian beams. Then, a Gaussian beam tracing model considering reflections and transmission is used to represent urban microcell propagation. We use a phase matching method to find reflected Gaussian beam The results of the Gaussian beam tracing simulations including line-of-sight (LOS) and non-line-of-sight (NLOS) propagation are compared with the results of the ray tracing method. The results are in good agreement with results of ray tracing technique on the same geometry. Overall coverage map shows the dominant effect of shadowing in the millimeter wave band. The tracing technique is faster and more promising compared to exhausted ray tracing methods.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124030667","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409804
M. Jalali, T. Sedghi, M. Shokri
In this paper, an open - ended rectangular waveguide antenna loaded with three type of SRRs, radiating below the cut-off frequency of the waveguide are desigend and a novel metamaterial SRR, Triangular Split Ring Resonators and Wire Strip (TSRR-WS), is proposed. This work has investigated design development, simulation, miniaturization and are comparing with these four types of SRRs of an open end a waveguide dual band antenna. A novel technique was employed to miniaturize the open-ended radiator using electromagnetic metamaterials (MTM). The antenna is capable of radiating below the cutoff frequency of the waveguide by supporting backward waves. Comparing previous work of miniaturization of waveguides, a better bandwidth about 600 MHz, good matching, dual band and low profile (with 5 unit cell of MTMs) antenna is obtained.
{"title":"A novel metamatarial SRR for waveguide antenna","authors":"M. Jalali, T. Sedghi, M. Shokri","doi":"10.1109/MMS.2009.5409804","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409804","url":null,"abstract":"In this paper, an open - ended rectangular waveguide antenna loaded with three type of SRRs, radiating below the cut-off frequency of the waveguide are desigend and a novel metamaterial SRR, Triangular Split Ring Resonators and Wire Strip (TSRR-WS), is proposed. This work has investigated design development, simulation, miniaturization and are comparing with these four types of SRRs of an open end a waveguide dual band antenna. A novel technique was employed to miniaturize the open-ended radiator using electromagnetic metamaterials (MTM). The antenna is capable of radiating below the cutoff frequency of the waveguide by supporting backward waves. Comparing previous work of miniaturization of waveguides, a better bandwidth about 600 MHz, good matching, dual band and low profile (with 5 unit cell of MTMs) antenna is obtained.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124044209","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409812
M. Yahia, J. Tao, H. Benzina, M. Abdelkrim
Traditional optimization methods, such as Powell's method and the Simplex Method (SM), are very difficult to the design of high performance filters in narrow relative bandwidth (BW). To improve the efficiency of the SM, we introduce a new optimization tool which is successfully applied to narrower bandwidth of four pole and six pole rectangular ridged waveguide filters.
{"title":"Modified Simplex Method applied to narrow bandwidth ridged waveguide filter optimization","authors":"M. Yahia, J. Tao, H. Benzina, M. Abdelkrim","doi":"10.1109/MMS.2009.5409812","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409812","url":null,"abstract":"Traditional optimization methods, such as Powell's method and the Simplex Method (SM), are very difficult to the design of high performance filters in narrow relative bandwidth (BW). To improve the efficiency of the SM, we introduce a new optimization tool which is successfully applied to narrower bandwidth of four pole and six pole rectangular ridged waveguide filters.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121740389","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409788
S. Iezekiel
We review the design and characterization issues involved in the implementation of analog fiber-optic links for the transmission of microwave signals. Recently developed topologies for microwave fiber-optic links are discussed.
{"title":"Design and characterization of microwave fiber-optic links","authors":"S. Iezekiel","doi":"10.1109/MMS.2009.5409788","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409788","url":null,"abstract":"We review the design and characterization issues involved in the implementation of analog fiber-optic links for the transmission of microwave signals. Recently developed topologies for microwave fiber-optic links are discussed.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115223875","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409808
C. H. Silva-Santos, M. Miranda, H. Hernández-Figueroa
This work presents an efficient high performance computational environment applied to process parallel and distributed electromagnetic applications. The procedure to validate this entire solution consists of two different tests, considering improvements in parallel performance and reduction in financial costs were considered. At first, various configurations were performed in the cluster in order to achieve an efficient parallel performance. The second sequence of test consider a parallel three-dimensional version of FDTD 3D with multi-dimensional distribution. In both tests the results present efficient performance and the financial costs were outstanding reduced with free software. In addition, the current infra-structure is flexible enough to be applied in different electromagnetic applications.
{"title":"Efficient parallel computational environment to perform electromagnetic simulations","authors":"C. H. Silva-Santos, M. Miranda, H. Hernández-Figueroa","doi":"10.1109/MMS.2009.5409808","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409808","url":null,"abstract":"This work presents an efficient high performance computational environment applied to process parallel and distributed electromagnetic applications. The procedure to validate this entire solution consists of two different tests, considering improvements in parallel performance and reduction in financial costs were considered. At first, various configurations were performed in the cluster in order to achieve an efficient parallel performance. The second sequence of test consider a parallel three-dimensional version of FDTD 3D with multi-dimensional distribution. In both tests the results present efficient performance and the financial costs were outstanding reduced with free software. In addition, the current infra-structure is flexible enough to be applied in different electromagnetic applications.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115397448","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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