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2011 11th Mediterranean Microwave Symposium (MMS)最新文献

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Comparative measurements of tapering input effects on tunable distributed phase shifter performances 锥形输入对可调谐分布式移相器性能影响的比较测量
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068588
M. Ould-Elhassen, M. Mabrouk, A. Ghazel, P. Benech
{"title":"Comparative measurements of tapering input effects on tunable distributed phase shifter performances","authors":"M. Ould-Elhassen, M. Mabrouk, A. Ghazel, P. Benech","doi":"10.1109/MMS.2011.6068588","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068588","url":null,"abstract":"This paper describes mathematical modeling, simulation and Measurement of analogue phase shifter based on distributed CPW transmission lines loaded by MACOM (MA46H071) Silicon Shottky diodes. Design and fabrication of two phase shifters circuits are presented in order to compare the performances of the circuit with and without tapering input section. We have used a linear profile of tapering input matching section, and we have compared the phase shifter performances in both cases. We have used Momentum Electro-magnetic simulator to characterize our phase shifter in order to validate the measurement. The expression of phase shifting is obtained using the global (Sij) matrix of proposed phase shifter. The simulations are compared with the measurement and good agreement is obtained.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123529286","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
Performance analysis of a proactive protocol for Mobile Ad hoc Networks with JiST-SWANS 基于JiST-SWANS的移动自组网主动协议性能分析
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068559
Maher Heni, R. Bouallègue
{"title":"Performance analysis of a proactive protocol for Mobile Ad hoc Networks with JiST-SWANS","authors":"Maher Heni, R. Bouallègue","doi":"10.1109/MMS.2011.6068559","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068559","url":null,"abstract":"The aim of this work is to evaluate the performances of the OLSR protocol over mobile Adhoc Networks. Computer simulation results show the efficiency of the method and also offer performance measure that agrees with competitive methods. The study is conducted over various network topologies and also various terminals mobility. In addition various metrics are used for this performance measure mainly: End-to-End Delay, Paket loss, Packet Delivery Ratio and Routing Overhead metric. We also show the robustness of OLSR against the terminals mobility and the network size. OLSR makes obvious the efficiency of the MPR mechanism in cutting down the traffic density and the energy consumption.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125001672","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
Analytical and numerical calculation of reflection from a stratified structure backed by a PEMC 由PEMC支撑的层状结构反射的解析和数值计算
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068546
V. Nayyeri, M. Soleimani, M. Dehmollaian
{"title":"Analytical and numerical calculation of reflection from a stratified structure backed by a PEMC","authors":"V. Nayyeri, M. Soleimani, M. Dehmollaian","doi":"10.1109/MMS.2011.6068546","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068546","url":null,"abstract":"Reflection from a stratified medium, backed by a perfect electromagnetic conductor (PEMC) due to an oblique incident plane wave is calculated analytically and numerically. Applying the PEMC boundary condition, the analytic reflection dyad is computed by the notion of propagators and wave-splitting technique and the numerical implementation is carried out using the FDTD method. FDTD modeling is achieved by implementation of PEMC boundary condition in the FDTD technique. Simulation results are provided for verification.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126475051","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: 4
Novel compact CPW filter for MICs using metamaterial structures 采用超材料结构的新型紧凑CPW滤波器
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068582
Sonali Das, A. Kundu, S. Maity, S. Dhar, B. Gupta
{"title":"Novel compact CPW filter for MICs using metamaterial structures","authors":"Sonali Das, A. Kundu, S. Maity, S. Dhar, B. Gupta","doi":"10.1109/MMS.2011.6068582","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068582","url":null,"abstract":"A band pass filter for Q-band MIC application is presented using two sets of resonator of different dimensions on Silicon substrate. The two resonators are implemented with the help of metamaterial structures and compactness is achieved by placing the resonators on both signal and ground planes of a Co Planar Waveguide (CPW). The resonators are realized using Complementary Split Ring Resonators (CSRRs). An equivalent circuit of the proposed design is presented along with the fabricated structures. Extraction of the LCR parameters of the proposed equivalent circuit is demonstrated. Further, it is seen that changing the metamaterial structure geometry from CSRR to Complementary U-shaped Split Resonators (CUSRs) tailoring of the pass-band can be achieved. By using different combinations of these two resonators, it is possible to tailor the bandwidth of the filter.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128957850","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
Application of the finite elements method in optical medical imaging 有限元法在光学医学成像中的应用
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068542
A. Saouli, K. Mansour
{"title":"Application of the finite elements method in optical medical imaging","authors":"A. Saouli, K. Mansour","doi":"10.1109/MMS.2011.6068542","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068542","url":null,"abstract":"The optical medical imaging is based on various systems such as the system resolved at time when ultra short bright impulses (picoseconds or femtoseconds) are sent to the surface of the tissue. The intensity appearing from some tissue (“temporal spread function”, or TPSF) is studied versus the arrival time of photons with a resolution around of the picoseconds [1]. The image reconstruction and the estimation of the optical properties of the target are based on the combination of the calculated and simulated TPSF (resolution of inverse problem). The method of finite elements (MFE) is a digital method which is used to resolve the problems in the limits characterized by an equation in the partial derivates and a set of conditions in the limits [2]. In this work, we used the MFE to resolve the direct problem of an optical impulse (some picoseconds) distribution in a biological middle. This system is managed by the equation of radiative transfer (ERT) which is under the shape of an equation for the partial derivatives.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127883950","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
Electromagnetic propagation environment effects on the WiMAX communication system 电磁传播环境对WiMAX通信系统的影响
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068545
Hani Wadie Badri, S. Ghnimi, A. Gharsallah
{"title":"Electromagnetic propagation environment effects on the WiMAX communication system","authors":"Hani Wadie Badri, S. Ghnimi, A. Gharsallah","doi":"10.1109/MMS.2011.6068545","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068545","url":null,"abstract":"The goal of this paper is to study the electromagnetic environment of WiMAX (worldwide interoperability for microwave access) communication system working at 3.5 GHz. For this, we have analyzed and compared the radio signal loss in urban, suburban and rural environment with different receiver antenna height. The path loss prediction is obtained by three propagation models: SUI (Stanford University Interim), COST Hata and Ericsson model. The analysis was made using MATLAB software. The results shows that in general SUI model predict the lowest path loss, especially in suburban environments.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121031880","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: 4
Study of a matching circuit effect on a microwave rectifier 微波整流器的匹配电路效应研究
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068522
Yuwei Zhou, B. Froppier, T. Razban
{"title":"Study of a matching circuit effect on a microwave rectifier","authors":"Yuwei Zhou, B. Froppier, T. Razban","doi":"10.1109/MMS.2011.6068522","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068522","url":null,"abstract":"An effective method is proposed to design a matching circuit for a microwave rectifier in order to manage the frequency bandwidth and the power bandwidth. Although the input impedance is affected by the nonlinear behavior of diodes with the variation of input power levels, the analysis on a variety of matching circuit configuration brings more evidence to improve the performance of rectifiers. This method has been applied in a low cost, zero-bias Schottky diode rectifier having RF-DC conversion efficiency of 55 %. The nonlinear simulation of rectifier circuit and an analytic description of multiple dimensional parameters are the key to study the relation between the nonlinear performance of a rectifier and its matching circuit.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121121732","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: 17
Small chambers shielding effectiveness measurement 小室屏蔽效能测量
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068517
R. Przesmycki, L. Nowosielski, M. Wnuk, M. Bugaj
{"title":"Small chambers shielding effectiveness measurement","authors":"R. Przesmycki, L. Nowosielski, M. Wnuk, M. Bugaj","doi":"10.1109/MMS.2011.6068517","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068517","url":null,"abstract":"The article concerns problems connected with measuring shielding effectiveness of small shielded chambers. In the article the measuring procedure and the position for measuring shielding effectiveness of small shielded chambers have been described. Particular attention was paid to maximization of dynamics in measuring attenuation of shields through minimization of noise level in measuring receiver obtained as a result of narrowing the RBW filter of intermediate frequency and through averaging the received noised test signal.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121491201","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
Reconciliation for practical quantum key distribution with BB84 protocol 用BB84协议协调实际量子密钥分配
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068566
N. Benletaief, H. Rezig, A. Bouallègue
{"title":"Reconciliation for practical quantum key distribution with BB84 protocol","authors":"N. Benletaief, H. Rezig, A. Bouallègue","doi":"10.1109/MMS.2011.6068566","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068566","url":null,"abstract":"This paper investigates a new information reconciliation method for quantum key distribution in the case where two parties exchange key in the presence of a malevolent eavesdropper. We have observed that reconciliation is a special case of channel coding and for that existing techniques can be adapted for reconciliation. We describe an explicit reconciliation method based on Turbo codes. We believe that the proposed method can improve the efficiency of quantum key distribution protocols based on discrete quantum states.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122674953","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: 6
MEMS based tunable microwave amplifier design for reconfigurable PCS1900 mobile application 基于MEMS的可调谐微波放大器设计，用于可重构PCS1900移动应用
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068539
Malek Ben Hammouda, F. Domingue, M. Ahmed-Ouameur
{"title":"MEMS based tunable microwave amplifier design for reconfigurable PCS1900 mobile application","authors":"Malek Ben Hammouda, F. Domingue, M. Ahmed-Ouameur","doi":"10.1109/MMS.2011.6068539","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068539","url":null,"abstract":"A RF amplifier based on compact tunable MEMS impedance matching network was designed for sub-2GHz frequency applications. The amplifier uses a PHEMT transistor fabricated in GaAs technology while the MEMS circuits is fabricated using a dedicated UW-MEMS process. The performance of the amplifier is controlled for the PCS1900 frequency band while the gain is kept around the maximum available stable gain.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131899913","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
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