2013 13th Mediterranean Microwave Symposium (MMS)最新文献

筛选
英文 中文
Low loss terahertz Planar Goubau Line on high resistivity silicon substrate 高电阻率硅衬底上的低损耗太赫兹平面沟保线
2013 13th Mediterranean Microwave Symposium (MMS) Pub Date : 2013-09-01 DOI: 10.1109/MMS.2013.6663115
M. Zehar, G. Moreno, A. Chahadih, I. Turer, A. Ghaddar, T. Akalin
{"title":"Low loss terahertz Planar Goubau Line on high resistivity silicon substrate","authors":"M. Zehar, G. Moreno, A. Chahadih, I. Turer, A. Ghaddar, T. Akalin","doi":"10.1109/MMS.2013.6663115","DOIUrl":"https://doi.org/10.1109/MMS.2013.6663115","url":null,"abstract":"Improvement of THz waveguides with reduced losses has seen a rapid progress in the recent years. Among designs with the low loss, Planar Goubau Line have been designed and fabricated on high resistivity silicon substrate. In this contribution, we discuss two kinds of Planar Goubau lines: rectangular cross section line for low loss transmission and corrugated line in order to slow down and confine the electromagnetic waves. Moreover, in this paper we present our low-loss waveguides and focus mainly on the influence of strip width and the length of the PGL on the S-parameters. The measured loss at 210 GHz is 2.5 dB. This value of loss could be tuned depending on certain parameters such as length, width of the rectangular cross section, the dimension of the coplanar waveguide transition or the thickness of the silicon substrate, etc. At the end of this communication, we show an example of the corrugated PGL that could be used first to confine and to slow down the electromagnetic propagation, and second to be a candidate for a filter application in the THz domain.","PeriodicalId":361750,"journal":{"name":"2013 13th Mediterranean Microwave Symposium (MMS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123027311","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
Design of compact and innovative microwave filters and multiplexers for space applications 设计紧凑和创新的微波滤波器和多路复用器的空间应用
2013 13th Mediterranean Microwave Symposium (MMS) Pub Date : 2013-09-01 DOI: 10.1109/MMS.2013.6663112
H. Ezzeddine, S. Bila, S. Verdeyme, D. Pacaud, J. Puech, L. Estagerie, F. Seyfert
{"title":"Design of compact and innovative microwave filters and multiplexers for space applications","authors":"H. Ezzeddine, S. Bila, S. Verdeyme, D. Pacaud, J. Puech, L. Estagerie, F. Seyfert","doi":"10.1109/MMS.2013.6663112","DOIUrl":"https://doi.org/10.1109/MMS.2013.6663112","url":null,"abstract":"In this paper, an original self-equalized filter and a compact diplexer are presented. New methodologies for synthesizing and designing these devices are introduced. Implementation in dual-mode cavities is preferred since this technology offers compactness and good electrical specifications required for space applications.","PeriodicalId":361750,"journal":{"name":"2013 13th Mediterranean Microwave Symposium (MMS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127603863","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
Electromagnetic nonlinear modeling of active phased antenna 有源相控天线的电磁非线性建模
2013 13th Mediterranean Microwave Symposium (MMS) Pub Date : 2013-09-01 DOI: 10.1109/MMS.2013.6663090
G. E. El Nashef, F. Torrès, S. Mons, T. Monediere, T. Reveyrand, M. Thevenot, E. Ngoya, R. Quéré
{"title":"Electromagnetic nonlinear modeling of active phased antenna","authors":"G. E. El Nashef, F. Torrès, S. Mons, T. Monediere, T. Reveyrand, M. Thevenot, E. Ngoya, R. Quéré","doi":"10.1109/MMS.2013.6663090","DOIUrl":"https://doi.org/10.1109/MMS.2013.6663090","url":null,"abstract":"This paper examines the distinctive feature of studying the direct interaction between high power amplifiers located at the vicinity of the radiating elements without the use of isolators. In that case, the coupling effect between antennas, which leads to output impedance mismatching and degradation of the radiation pattern, will be described. Alongside, two methods have been developed to address this major drawback with some experimental results to validate the theoretical approach. An active antenna prototype including power amplifiers has been manufactured to validate a first approach of active antenna joint simulation, taking into account all the mentioned effects.","PeriodicalId":361750,"journal":{"name":"2013 13th Mediterranean Microwave Symposium (MMS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127403810","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
Application of S-UTD-CH model into multiple diffraction scenarios with close building heights S-UTD-CH模型在建筑高度相近的多种衍射场景中的应用
2013 13th Mediterranean Microwave Symposium (MMS) Pub Date : 2013-05-30 DOI: 10.1155/2013/285304
M. Tabakcioglu, A. Cansiz
{"title":"Application of S-UTD-CH model into multiple diffraction scenarios with close building heights","authors":"M. Tabakcioglu, A. Cansiz","doi":"10.1155/2013/285304","DOIUrl":"https://doi.org/10.1155/2013/285304","url":null,"abstract":"In this study, propagation prediction models based on ray tracing in coverage estimation for broadcasting systems are compared with respect to computation time and accuracy in the case of close building heights. Uniform Theory of Diffraction (UTD), Slope Diffraction (S-UTD) and Slope UTD with Convex Hull (S-UTD-CH) models are compared for computation time and propagation path loss. Moreover in this study, effects of transmitter height to relative path loss at the receiver are analyzed. Furthermore, contribution of S-UTD-CH model to UTD model increases in the transition zone. As a conclusion, S-UTD-CH model is optimum model with respect to computation time and relative path loss in transition zone.","PeriodicalId":361750,"journal":{"name":"2013 13th Mediterranean Microwave Symposium (MMS)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122457478","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
Decoding of iterative Non-Binary LDPC codes using a near Maximum Likelihood approach 使用近最大似然方法的迭代非二进制LDPC码解码
2013 13th Mediterranean Microwave Symposium (MMS) Pub Date : 1900-01-01 DOI: 10.1109/mms.2013.6663111
A. Ghouwayel, Abdel-karim Ajami, Hussein Hijazi
{"title":"Decoding of iterative Non-Binary LDPC codes using a near Maximum Likelihood approach","authors":"A. Ghouwayel, Abdel-karim Ajami, Hussein Hijazi","doi":"10.1109/mms.2013.6663111","DOIUrl":"https://doi.org/10.1109/mms.2013.6663111","url":null,"abstract":"This paper investigates the decoding of rate 1/2 Non-Binary LDPC codes using a non-iterative approach based on the Maximum-Likelihood (ML) principle. The iterative decoding approach based on the well known Extended-Min-Sum (EMS) algorithm, considered as the most efficient decoding algorithm to decode NB-LDPC codes, executes the decoding process iteratively. The main operations of this algorithm are the variable and check node updates which are performed at least eight times requiring a long decoding time to achieve good performance in terms of Frame Error Rate (FER). The proposed decoding near ML approach is based on ML search where the number of candidates is highly reduced using a technique privileging the most reliable and nearest codewords. Then, a new decision making rule is proposed permitting to stop the ML search and select the decoded codeword. Simulation results show that the proposed algorithm achieves, at a reduced list of 5 searched candidates in average at 3 dB, the performance offered by the EMS algorithm. We also show that by slightly increasing the list of candidates, the proposed algorithm outperforms the EMS algorithm.","PeriodicalId":361750,"journal":{"name":"2013 13th Mediterranean Microwave Symposium (MMS)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124570904","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信