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

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Ground slot with capacitor for high isolation between MIMO antenna 带电容的地槽，用于MIMO天线之间的高隔离
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068561
Jungsik Park, Jiyong Park, Junho Choi, Young-Sik Kim
{"title":"Ground slot with capacitor for high isolation between MIMO antenna","authors":"Jungsik Park, Jiyong Park, Junho Choi, Young-Sik Kim","doi":"10.1109/MMS.2011.6068561","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068561","url":null,"abstract":"In this paper a T-shaped ground slot with a chip capacitor to improve isolation between two closely packed planar inverted F antennas (PIFAs) is presented at the WLAN band of 2.4 GHz – 2.48 GHz for mobile phone applications. The calculated envelop correlation coefficient of the proposed antenna is less than 0.1 and the isolation between two PIFAs yields less than −20 dB over the whole WLAN band. The measured antenna gain and efficiency are about 2 dBi and 40% at 2.4 GHz, respectively. The size of the proposed slot with a chip capacitor is also reduced by 50% compared to the T-shaped slot without one.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"35 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":"115632651","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
A new algorithm for wavelet video coding 一种新的小波视频编码算法
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068572
Nabil Chaabani, Ezzedine Tahar, A. Bouallègue
{"title":"A new algorithm for wavelet video coding","authors":"Nabil Chaabani, Ezzedine Tahar, A. Bouallègue","doi":"10.1109/MMS.2011.6068572","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068572","url":null,"abstract":"In this paper, we propose a video coding scheme based on an analytical synthesis approach using wavelet (t+2D) coding and meshes for the representation of movement.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"205 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":"122778084","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
Efficient iterative method for characterization of microwave planar circuits 微波平面电路表征的高效迭代方法
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068577
M. Tellache, H. Baudrand
{"title":"Efficient iterative method for characterization of microwave planar circuits","authors":"M. Tellache, H. Baudrand","doi":"10.1109/MMS.2011.6068577","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068577","url":null,"abstract":"In the present work, the modeling of microwaves planar circuits is proposed with an original method based on the Waves Concept Iterative Process (WCIP). It consists in the development of simulation software based on an iterative method. The iterative method is developed from the fast modal transform on a two-dimensional fast Fourier transform (FFT) algorithm. The method has been applied to the characterization and the modeling of patch antennas with notches in microstrip and coplanar technology and the quarter wavelength directive coupler. The obtained results are very powerful and successfully compared to others methods in term of time and reliability of convergence and particularly the accuracy of the results obtained in comparison with previous works.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"2 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":"114928693","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
LMMSE channel estimation for block - pilot insertion in OFDM systems under time varying conditions 时变条件下OFDM系统块导频插入的LMMSE信道估计
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068567
Zaier Aida, B. Ridha
{"title":"LMMSE channel estimation for block - pilot insertion in OFDM systems under time varying conditions","authors":"Zaier Aida, B. Ridha","doi":"10.1109/MMS.2011.6068567","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068567","url":null,"abstract":"In this paper, we propose a new use of LMMSE and Lr-LMMSE algorithms for channel estimation in OFDM (Orthogonal Frequency Division Multiplexing) system which, as known suffers from the time variation of the channel under high mobility conditions using block pilot insertion. The loss of sub channel orthogonality leads to inter-carrier interference (ICI). Using many algorithms for channel estimation, we will show that, for a 16- QAM modulation, the LMMSE algorithm performs well to achieve this estimation but when the SNR (Signal Noise Rate) is high, the three algorithms (LS, LMMSE and Lr-LMMSE) performs similarly. The challenge in this paper is that we will demonstrate that the LMMSE algorithm performs well with the block pilot insertion and is not suitable just with comb pilot insertion.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"63 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":"115413261","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: 8
Rectangular waveguide filter design using hybrid finite element method and a modified multimodal variational formulation 矩形波导滤波器的设计采用混合有限元法和改进的多模态变分公式
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068518
M. Yahia, M. Abdelkrim, J. Tao
{"title":"Rectangular waveguide filter design using hybrid finite element method and a modified multimodal variational formulation","authors":"M. Yahia, M. Abdelkrim, J. Tao","doi":"10.1109/MMS.2011.6068518","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068518","url":null,"abstract":"We propose a computer-aided design tool of complex passive microwave devices in rectangular waveguide technology by hybridizing the finite element method and a modified multimodal variational formulation. The finite element method characterizes waves in the arbitrarily shaped discontinuities and the total response of the circuit is obtained by applying the modified multimodal variational formulation. The size of the scattering matrix of the total circuit depends only on the number of accessible modes in the beginning and the end of the overall structure. This feature makes the computation time of our hybrid method independent from distances between discontinuities of the circuit. The proposed hybrid method is successfully applied to the full-wave analysis of filters with great practical interest (i.e., multimode filters), thus improving computation time and memory storage against several full-wave finite element method based computer aided design tools.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"4 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":"121901918","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
3D FDTD analysis of a compact UWB planar antenna 小型超宽带平面天线的三维时域有限差分分析
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068564
Mohamed Hayouni, N. Dakhli, F. Choubani, T. Vuong
{"title":"3D FDTD analysis of a compact UWB planar antenna","authors":"Mohamed Hayouni, N. Dakhli, F. Choubani, T. Vuong","doi":"10.1109/MMS.2011.6068564","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068564","url":null,"abstract":"In this paper, a compact UWB rectangular patch antenna with two convex circled forms is presented. The antenna is printed on a partial grounded FR4 epoxy substrate. Simulated results using Ansoft HFSS and FDTD implemented code concord well with the measured results. It prove that this antenna can operate from 3.55GHz to 4.6 GHz and from 7.4GHz to 11.7GHz for S11<−10dB making this antenna suitable for some radio frequencies applications.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"16 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":"130607086","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
Lumped circuit model analysis of meander line antennas 曲线天线的集总电路模型分析
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068520
A. Das, S. Dhar, B. Gupta
{"title":"Lumped circuit model analysis of meander line antennas","authors":"A. Das, S. Dhar, B. Gupta","doi":"10.1109/MMS.2011.6068520","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068520","url":null,"abstract":"The past decade has seen phenomenal advances in portable electronics technology like mobile phones, RFID tags and MP3 players. This has led to the development of System in Package (SiP) which combines all the necessary components into a single package. Miniaturization of RF circuit technology has resulted in the need for miniaturized antennas. Meander line antennas are widely used in applications where compactness and miniaturization are key objectives. Although this antenna has been widely used, yet no simple analytical model except those using complicated numerical techniques is available. In this paper, we present a simple analytical model to calculate the resonant frequency of the antenna employing a lumped equivalent circuit model. Circuit response of a typical meander line antenna using our model has been compared with simulated antenna response using Method of Moments based simulator IE3D with good agreement, thereby validating our approach.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"38 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":"132771275","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: 25
Adaptive radiation pattern optimization for antenna arrays by phase using a Taguchi Optimization method 基于田口优化方法的天线阵相位自适应辐射方向图优化
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068547
A. Smida, R. Ghayoula, H. Trabelsi, A. Gharsallah
{"title":"Adaptive radiation pattern optimization for antenna arrays by phase using a Taguchi Optimization method","authors":"A. Smida, R. Ghayoula, H. Trabelsi, A. Gharsallah","doi":"10.1109/MMS.2011.6068547","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068547","url":null,"abstract":"In this paper, an optimal radiation pattern is obtained for a linear antenna array using Taguchi's Optimization method. A set of phase shift weights are generated in order to steer the beam towards any desired direction. The fitness function is used to calculate the phase shift weights. The results of Taguchi's method are validated by using array antenna patch and simulated by software CST2009 (CST microwave studio)","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"25 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":"116634225","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
Phase-only array beam control using a Taguchi optimization method 基于田口优化方法的纯相阵波束控制
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068537
N. Nemri, A. Smida, R. Ghayoula, H. Trabelsi, A. Gharsallah
{"title":"Phase-only array beam control using a Taguchi optimization method","authors":"N. Nemri, A. Smida, R. Ghayoula, H. Trabelsi, A. Gharsallah","doi":"10.1109/MMS.2011.6068537","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068537","url":null,"abstract":"This paper introduces the developed hardware platforms of the smart antenna transmitter system and its implementation details and presents the novel concept of smart antenna system which requires digital beamforming based on Taguchi Method. This paper investigates how the implementation on STM8 of the signal processing in hardware affects the performance of the adaptive array antenna. This system shows excellent performance for the radiation pattern and capable to steering by adjusting the relative phases of the signal received or transmitted by each antenna. The objective of the design is to construct smart antenna beamforming systems with hardware-software implemented Taguchi Method.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"10 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":"128675032","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: 8
Study of a RFID antenna for a telemetric application 遥测应用射频识别天线的研究
2011 11th Mediterranean Microwave Symposium (MMS) Pub Date : 2011-11-03 DOI: 10.1109/MMS.2011.6068589
H. Talleb, D. Lautru, V. Fouad Hanna, M. Wong, J. Wiart
{"title":"Study of a RFID antenna for a telemetric application","authors":"H. Talleb, D. Lautru, V. Fouad Hanna, M. Wong, J. Wiart","doi":"10.1109/MMS.2011.6068589","DOIUrl":"https://doi.org/10.1109/MMS.2011.6068589","url":null,"abstract":"Wireless body area networks (WBANs) technology is now recognized as a promising candidate for various potential applications in the domains of health, surveillance, monitoring, sport, multimedia, entertainment, etc. As the devices are implanted or embedded in the human body, the design constraints are particularly stringent: low power consumption is required for applications demanding autonomy (e.g., medical surveillance), security and safety are mandatory for vital applications, radiations are subject to regulatory limits for public health and coexistence in addition to other constrains like size, aspect ratio, and weight.","PeriodicalId":176786,"journal":{"name":"2011 11th Mediterranean Microwave Symposium (MMS)","volume":"14 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":"122982022","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
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