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2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)最新文献

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Numerical and Experimental Analysis of CSRR Structures in Bioinspired Microstrip Antenna 仿生微带天线中CSRR结构的数值与实验分析
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317670
Álef H. P. Souto, B. L. G. dos Santos, J. C. e Silva, A. Neto
{"title":"Numerical and Experimental Analysis of CSRR Structures in Bioinspired Microstrip Antenna","authors":"Álef H. P. Souto, B. L. G. dos Santos, J. C. e Silva, A. Neto","doi":"10.1109/IMOC43827.2019.9317670","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317670","url":null,"abstract":"The growing use metamaterial structures have the aim to improving radiating systems and microwave devices. Split Ring Resonator (SRR) and Complementary Split Ring Resonator (CSRR) are examples of such structures. In this paper, CSSRs have been used in the ground plane of a bioinspired microstrip antenna, designed for the 5.8 GHz band, in order to provide an improvement of its fundamental parameters and possible miniaturization of this device. For the antenna design, the Gielis’ superformula has been used, generating a bioinspired form in the anemone (flower). Thus, numerical and experimental analyzes have been performed, always observing the changes caused by the insertion of CSRRs, mainly observing a control of band and retreat in the resonance frequency, allowing the process of miniaturization.. Numerical results have been obtained using the ANSYS commercial software, which uses the Method of Moments (MoM).","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121884455","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
FBG-based sensor applied to volumetric flow rate measurements 应用于体积流量测量的fbg传感器
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317642
A. Allil, A. Dante, R. Allil, C. Carvalho, M. Werneck
{"title":"FBG-based sensor applied to volumetric flow rate measurements","authors":"A. Allil, A. Dante, R. Allil, C. Carvalho, M. Werneck","doi":"10.1109/IMOC43827.2019.9317642","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317642","url":null,"abstract":"The primary purpose of an offshore oil production platform flare is to ensure operational safety at the facility by safely disposing the gas whenever needed. This may involve handling of large amounts of gas over a short period of time. It is essential that any measuring equipment, installed in the burner line, does not obstruct the flow of gas, so as not to cause a significant pressure drop. For these types of measurements many sensor technologies are available, however they are all very expensive, in the order of several thousands of dollars. Therefore, this paper presents an optoelectronic sensor solution characterized by its small dimensions, electromagnetic free interference and fast response time, besides its non-flammable property.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127588960","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
Large-Scale Propagation Modeling in Corridors at the 10 GHz Frequency Spectrum 10ghz频谱下走廊中大规模传播建模
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317658
A. Lopes, Lídia Rocha, F. Ferreira, I. Batalha, C. Gomes, F. Barros, André Carvalho
{"title":"Large-Scale Propagation Modeling in Corridors at the 10 GHz Frequency Spectrum","authors":"A. Lopes, Lídia Rocha, F. Ferreira, I. Batalha, C. Gomes, F. Barros, André Carvalho","doi":"10.1109/IMOC43827.2019.9317658","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317658","url":null,"abstract":"This article presents a large-scale modeling analysis for different types of corridors at 10 GHz, within line-of-sight (LoS) conditions, including behavioral statistics for the received signals. Influenced by structural and material conditions, there is a 2dB increase for the stone-walled corridor, demonstrating that multipaths generated by the environment’s material permittivity are directly related to signal loss. This work contributes to the evaluation of mmWave communication performance when applied to fifth generation (5G) systems.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134053886","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
Solving Quadratic Assignment Problem for Survivable Optical Networks with Genetic Algorithm 用遗传算法求解可生存光网络的二次分配问题
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317641
Yrui Giovan Neris, M. Paiva, C. Pavan
{"title":"Solving Quadratic Assignment Problem for Survivable Optical Networks with Genetic Algorithm","authors":"Yrui Giovan Neris, M. Paiva, C. Pavan","doi":"10.1109/IMOC43827.2019.9317641","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317641","url":null,"abstract":"We propose a genetic algorithm that, given a network topology, find a bijection that minimizes the sum of link lengths. Results show the genetic algorithm is faster than a brute force algorithm to find the same outcomes, even for small topologies. However, an individual evaluation of the impact on other performance variables should be taken.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131938492","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
Characterization of The Wireless Onboard Channel During Tunnel Crossing in High-Speed Rail Traffic 高速铁路隧道穿越无线车载信道特性研究
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317549
Johann Lichtblau, F. Lurz, Benedikt Sanftl, R. Weigel, A. Koelpin
{"title":"Characterization of The Wireless Onboard Channel During Tunnel Crossing in High-Speed Rail Traffic","authors":"Johann Lichtblau, F. Lurz, Benedikt Sanftl, R. Weigel, A. Koelpin","doi":"10.1109/IMOC43827.2019.9317549","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317549","url":null,"abstract":"Channel models provide the advantage of being able to validate new modulation and coding schemes timeefficiently. The prerequisite for such a simulated outcome is the adequate reflection of reality in the model. Moreover, field measurements are extremely resource-intensive for communication testing in rail transport. These two aspects lead to the fact that high quality channel models are essential in this industrial sector and the only way to obtain results regarding communication performance rapidly and without massive effort. After preliminary work has identified unexplored effects in train-onboard communication during tunnel crossing at high speeds, this work focuses on the creation of a channel model for such a scenario. By analyzing many channel impulse responses, it is the intention to gain an improved knowledge of interference effects and to transfer this scenario into a statistical channel model. After an appropriate verification, this enables the execution of several simulations in the context of 5G and the optimal setting of various communication parameters. A realistic evaluation is thus possible in a purely virtual way as finally presented by results of two applied channel models.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134250381","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
Path Loss and Delay Spread Characterization in a 26 GHz mmWave Channel Using the Ray Tracing Method 26 GHz毫米波通道中路径损耗和延迟扩展特性的光线追踪方法
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317662
H. T. P. da Silva, M.S. de Alencar, K. Assis
{"title":"Path Loss and Delay Spread Characterization in a 26 GHz mmWave Channel Using the Ray Tracing Method","authors":"H. T. P. da Silva, M.S. de Alencar, K. Assis","doi":"10.1109/IMOC43827.2019.9317662","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317662","url":null,"abstract":"The application of millimeter wave band is a promising technique to achieve the high rates requirements in the Fifth Generation (5G) of wireless communications. In Brazil, the frequency spectrum regulatory agency must use the 26 GHz band to mmWave applications in 5G. This paper presents results of a 26 GHz micro-cellular urban channel obtained from a 3D ray tracing simulation. The applied ray tracing simulation is based on the Shooting-and-Bouncing Rays (SBR) method, which considers reflected and diffracted rays. The considered scenario of simulation is based on the mapping of Manaíra and Jardim Oceania neighborhoods, seafront of João Pessoa city, Brazil. As results, are presented the characterization of the path loss exponent, shadow fading standard deviation and RMS delay spread statistics.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125711065","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
Electromagnetic Characterization of the Tommy Atkins Mango in the Maturation Period 汤米阿特金斯芒果成熟期的电磁特性
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317621
Cristiano Miranda Correia Lima, J. N. Carvalho, E. P. Andrade, José Gilberto Sobreira Gomes
{"title":"Electromagnetic Characterization of the Tommy Atkins Mango in the Maturation Period","authors":"Cristiano Miranda Correia Lima, J. N. Carvalho, E. P. Andrade, José Gilberto Sobreira Gomes","doi":"10.1109/IMOC43827.2019.9317621","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317621","url":null,"abstract":"This work presents the characterization of the dielectric properties (dielectric constant and loss factor) of the Tommy Atkins mango (Mangifera indica L), which is a fruit of great economic importance for Brazil. For the characterization, the coaxial probe method was used for frequencies between 1 and 5 GHz. The Vector Network Analyzer 16451B and the software Dielectric Probe 85070 manufactured by Agilent were used. Measurements were performed on the outer part of the fruit, on the shell and also on the inside, relating the results to the maturation index of the mango, identified by the yellowish tone in its shell, as well as the amount of soluble solids (amount of sugar). The results allowed to correlate the dielectric characteristics of the fruit with the physical-chemical transformations that occurred in the maturation process of the mango, as well as the sugar content. The lowest value was determined for the dielectric constant and for the tangent of losses on the day of the fruit’s peak maturity. The results show that it is possible to identify the properties of the mango studied through non-invasive measures on the fruit peel.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125593357","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
Back-to-back Double Antenna Array with 360° Coverage Simulation Model 背靠背双天线阵列360°覆盖仿真模型
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317582
B. A. Kleinau, Saulo R. B. de Queiroz, Ricardo J. de F. P. V. Almeida, E. D. de Oliveira, M. T. de Melo
{"title":"Back-to-back Double Antenna Array with 360° Coverage Simulation Model","authors":"B. A. Kleinau, Saulo R. B. de Queiroz, Ricardo J. de F. P. V. Almeida, E. D. de Oliveira, M. T. de Melo","doi":"10.1109/IMOC43827.2019.9317582","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317582","url":null,"abstract":"This work presents the modeling and mathematical analysis of a back-to-back double antenna array with 360° coverage. The Double Array is composed by 8 Yagi-Udaantennas aligned in two back-to-back 4-element linear arrays. The goal of this work is verifying the influence of the separation between the two arrays in the farfield radiation diagram regarding shape and directivity. Simulated results are presented.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133171766","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
Hybrid and Bioinspired Computational Optimization Techniques for the Design and Synthesis of Multilayer FSS 多层FSS设计与合成的混合与生物启发计算优化技术
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317639
Wirlan G. Lima, Cássio da C. Nogueira, Flávio H. C. S. Ferreira, F. Barros, M. C. De Alcântara Neto, J. D. De Araújo, G. Cavalcante
{"title":"Hybrid and Bioinspired Computational Optimization Techniques for the Design and Synthesis of Multilayer FSS","authors":"Wirlan G. Lima, Cássio da C. Nogueira, Flávio H. C. S. Ferreira, F. Barros, M. C. De Alcântara Neto, J. D. De Araújo, G. Cavalcante","doi":"10.1109/IMOC43827.2019.9317639","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317639","url":null,"abstract":"This article presents two hybrid and bioinspired optimization techniques that associate the General Regression Neural Network (GRNN) to a Genetic Algorithm (GRNN-GA) and to a Cuckoo Search (GRNN-CS) algorithm, developed for the synthesis and designing process of two multilayered Frequency Selective Surfaces (FSS) that operate at the X and Ku frequency bands. The cutoff frequencies, that signal how much bandwidth the surfaces provide, are obtained at -10dB. Data calculated for both techniques, GRNN-GA and GRNN-CS, are herein compared, and both have shown to produce satisfactory results.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"26 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114025037","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
A Bivariate η-μ Complex Fading Model 二元η-μ复衰落模型
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317626
Alessandro P. de Oliveira, Thiago A. M. de Bairros, M. Yacoub, R. D. de Souza
{"title":"A Bivariate η-μ Complex Fading Model","authors":"Alessandro P. de Oliveira, Thiago A. M. de Bairros, M. Yacoub, R. D. de Souza","doi":"10.1109/IMOC43827.2019.9317626","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317626","url":null,"abstract":"In this paper, a fading model for the bivariate η-μ complex process is proposed. An exact, closed-form expression for the joint probability density function including the two envelopes and the two phases is attained. The proposed model constitutes a framework that can be used to assess the performance of wireless communications systems in the presence of a general fading model.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124085779","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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