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

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Building Structure with Pendulum Neutralizer Vibration Analysis Using FBGs Strain Sensors 基于FBGs应变传感器的钟摆中和器建筑结构振动分析
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317609
R. P. Linessio, J. D. da Silva, E. Fantin, C. Bavastri
{"title":"Building Structure with Pendulum Neutralizer Vibration Analysis Using FBGs Strain Sensors","authors":"R. P. Linessio, J. D. da Silva, E. Fantin, C. Bavastri","doi":"10.1109/IMOC43827.2019.9317609","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317609","url":null,"abstract":"In this paper, the response of the fiber Bragg gratings applied to vibration control of a prototype building structure is analysed. The dynamic vibration control is based on the pendulum neutralizer without damping. The primary and compound system responses were obtained using finite element method and experimentally. These analyses were performed without and with pendulum neutralizer. The tests results are in qualitative accordance with the theory. This study validates the effectiveness of the vibration measurements from the fiber Bragg gratings combined with vibrations control in low frequencies, encouraging future applications.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"237 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":"129757239","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
A New Technique for Shaping Axis-Symmetric Dual-Reflector Antennas Using Conic Sections 一种利用圆锥截面成形轴对称双反射面天线的新技术
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317614
T. V. B. Faria, F. Moreira
{"title":"A New Technique for Shaping Axis-Symmetric Dual-Reflector Antennas Using Conic Sections","authors":"T. V. B. Faria, F. Moreira","doi":"10.1109/IMOC43827.2019.9317614","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317614","url":null,"abstract":"This work investigates a neiv procedure for the shaping of axis-symmetric dual-reflector antennas to control the amplitude and phase of the aperture-field. The generatrices of sub- and main-reflectors are shaped through consecutive concatenation of conic sections. To illustrate the efficacy of the algorithm, an axis-displaced Cassegrain configuration is shaped to provide an uniform aperture mumination, under Geometrical Optics principles. The results are validated using the electromagnetic analysis provided by the method-of-moments.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"1 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":"130654667","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
Special Implementations of Fiber Bragg Grating Sensors 光纤光栅传感器的特殊实现
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317690
G. Berkovic, E. Shafir, S. Zilberman
{"title":"Special Implementations of Fiber Bragg Grating Sensors","authors":"G. Berkovic, E. Shafir, S. Zilberman","doi":"10.1109/IMOC43827.2019.9317690","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317690","url":null,"abstract":"Special implementations of standard silica Fiber Bragg Grating sensors have been developed by our group, including strain measurement in rotating structures and nanosecond time scale measurements of shock wave propagation. Sensing of minute strain changes using phase shifted gratings and pressure sensing using plastic optical fibers are also discussed.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"24 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120918632","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
Design of Power Amplifier for Multi-mode Multi-standard Front-end based on BiCMOS technology 基于BiCMOS技术的多模多标准前端功率放大器设计
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317601
Xiangning Fan, Jing Feng, Baoting Xie, Chen Xin
{"title":"Design of Power Amplifier for Multi-mode Multi-standard Front-end based on BiCMOS technology","authors":"Xiangning Fan, Jing Feng, Baoting Xie, Chen Xin","doi":"10.1109/IMOC43827.2019.9317601","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317601","url":null,"abstract":"The class-E amplifier adopts 0.13$mu$m SiGe BiCMOS technology, covering the most communication standards within 1.75G-2.75G and meets the varieties of communication standards of communication equipment. The design also uses lossy matching, matching compensation technology to enhance the overall performance of the amplifier. The post-simulation results show that the power amplifier is unconditionally stable in the working band of 1.75G-2.75G, the power amplifier is unconditionally stable, the circuit stability coefficient is greater than 22, the Sll is less than -15dB in the frequency band, shows that the input matching performance is good. The output power is more than 26dBm, the power gain is more than 21dB, the PAE is more than 50%, and the peak efficiency reaches 60%.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"338 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":"116261274","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
Evaluation of Different Materials to Design 3D Printed Horn Antennas for Ku-Band 不同材料对ku波段3D打印喇叭天线设计的影响
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317424
Diogo Helena, Amélia Ramos, T. Varum, J. N. Matos
{"title":"Evaluation of Different Materials to Design 3D Printed Horn Antennas for Ku-Band","authors":"Diogo Helena, Amélia Ramos, T. Varum, J. N. Matos","doi":"10.1109/IMOC43827.2019.9317424","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317424","url":null,"abstract":"The evolution of new satellite services in the Ku-band drives the development of new antenna technologies. For systems like this, the high performance and the antenna’s cost are critical aspects to consider. 3D printing technology is a possible solution, as it provides both fast and low cost prototyping, while ensuring high precision features. In this article two 3D printed horn antennas are presented. They followed different production approaches in order to evaluate distinct materials. The first prototype was printed with PLA and then covered with copper tape, while the second one was merely printed with a conductive PLA. Although the first one presented better efficiency, the second one achieved better bandwidth.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"167 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":"116310838","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
Numerical Analysis of a Graphene-based SPR Sensor by the Finite Element Method 石墨烯基SPR传感器的有限元数值分析
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317565
Y. G. Conceição, A. Cruz, P. R. Amaral, P. C. Lopes, T. Rosso, V. Dmitriev, K. Costa
{"title":"Numerical Analysis of a Graphene-based SPR Sensor by the Finite Element Method","authors":"Y. G. Conceição, A. Cruz, P. R. Amaral, P. C. Lopes, T. Rosso, V. Dmitriev, K. Costa","doi":"10.1109/IMOC43827.2019.9317565","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317565","url":null,"abstract":"In this paper we present a numerical analysis of an approximate model of Surface Plasmon Resonance sensor (SPR sensor) in the Surface Plasmon Coupled Emission (SPCE) configuration based on graphene, using a software grounded on the Finite Element Method, COMSOL Multiphysicso. The model is formed by a multilayer structure: Air/Graphene/SiO2/ Graphene/ Prism, being located in the region of Air a radiate hertzian dipole operating in the range of Terahertz. The graphene layers are modeled as surface impedances with conductivity described by the Kubo Formula. Parametric analyzes of the near and far field are carried out in function of the chemical potential applied in the graphene layers, where we verified the emission coupled control by the dynamic doping of the graphene.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"1 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":"125761316","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
Coloured QR codes for the Internet of Things 物联网的彩色二维码
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317554
J. F. Ramalho, L. Carlos, R. Ferreira, P. André
{"title":"Coloured QR codes for the Internet of Things","authors":"J. F. Ramalho, L. Carlos, R. Ferreira, P. André","doi":"10.1109/IMOC43827.2019.9317554","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317554","url":null,"abstract":"The access and exchange of information increased dramatically in the last years and Quick Response (QR) codes are a facilitating technology. Assembled with black and white modules and able to store different types of information (numeric, alphanumeric, kanji, kana) with high density and robustness to reading errors, QR codes have spark interest and visibility among users being applied in several fields of society. Challenges encompass the increase of storage capacity to keep promoting their use in a broader range of applications. We propose the use of multiplexing methods based on colour to generate high density QR codes with 3 times storage capacity increased when compared to traditional QR codes. A methodology to decode the multiplex coloured QR code, based on colour separation threshold aided by maximum likehood criteria to minimize the error associated with decoding and maximizing the foreseen storage capacity, is also presented.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"93 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":"115795857","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
Study of electromagnetic parameters of microstrip antennas with encapsulation of three materials (PLA, PS and Carnauba Wax) 三种材料(PLA、PS和巴西棕榈蜡)封装微带天线电磁参数研究
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317418
Pedro Bruno Nogueira da Silva, José Lucas da Silva Paiva, Idalmir de Souza Queiroz Júnior, Stefany Kariny dos Santos de Souza Queiroz, C. E. C. Cavalcante
{"title":"Study of electromagnetic parameters of microstrip antennas with encapsulation of three materials (PLA, PS and Carnauba Wax)","authors":"Pedro Bruno Nogueira da Silva, José Lucas da Silva Paiva, Idalmir de Souza Queiroz Júnior, Stefany Kariny dos Santos de Souza Queiroz, C. E. C. Cavalcante","doi":"10.1109/IMOC43827.2019.9317418","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317418","url":null,"abstract":"This research refers to the feasibility analysis of enveloping use for mechanical protection of microstrip antennas operating in WLAN. The situations were tested without envelopment, and with envelopment with the materials polylactic acid (PLA), polystyrene (PS) and carnauba wax. The results show that the use of such casings is feasible for mechanical protection. Tests show that the enclosures gently reduce antenna gain and bandwidth.","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":"132696848","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
Total Variation Deconvolution of Raman Distributed Temperature Sensing Signals 拉曼分布温度传感信号的全变分反褶积
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317415
Jesse de Pelegrin, J. P. Bazzo, Igor Brutkowski Vieira da Costa, C. Martelli, D. Pipa, J. C. Cardozo da Silva
{"title":"Total Variation Deconvolution of Raman Distributed Temperature Sensing Signals","authors":"Jesse de Pelegrin, J. P. Bazzo, Igor Brutkowski Vieira da Costa, C. Martelli, D. Pipa, J. C. Cardozo da Silva","doi":"10.1109/IMOC43827.2019.9317415","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317415","url":null,"abstract":"The diffusion of optical fibers has leveraged the development of several researches studies in the field of industrial applications. The sensing element is the fiber itself, and the reading is performed by commercial distributed temperature sensing (DTS) equipament based on Raman scattering. Most commercial DTS equipament has a spatial resolution of one meter, which makes it difficult to employ in small and medium structures or equipment. In addition to the advantage of having reduced dimensions, these sensors are immune to electromagnetic interference (EMI). These characteristics are fundamental for use in electric machines. This paper presents a scheme to reduce the spatial resolution through signal processing without changing the hardware of the equipament, thus aiming at new applications of this technology in small and medium-sized structures.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"5 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":"134621814","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 High Linearity Up-Conversion Mixer for LTE MTC Applications 一种用于LTE MTC应用的高线性上转换混频器
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317594
Jing Feng, Xiangning Fan, Xin Chen
{"title":"A High Linearity Up-Conversion Mixer for LTE MTC Applications","authors":"Jing Feng, Xiangning Fan, Xin Chen","doi":"10.1109/IMOC43827.2019.9317594","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317594","url":null,"abstract":"The paper presents an up-conversion mixer fabricated in standard TSMC 1P9M65nm CMOS process to meet the requirements for LTE MTC communications. The present mixer is designed for IF frequency of lOMHz, LO frequency of 1.9 GHz with a supply voltage of 1.2 V. A folded structure and resistive source feedback are employed to improve the linearity without consuming excessive voltage headroom. Filter capacitors are added to the drain of the transconductance stage to alleviate the feedthrough from LO port to IF port. The mixer achieves a conversion gain of 1.46 dB, an output thirdorder intercept of17.7 dBm and a LO-RF isolation of -230dB.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"172 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":"115183570","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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