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2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)最新文献

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Design of a microstrip antenna array with polarization diversity for DoA application 面向DoA应用的极化分集微带天线阵列设计
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121092
T. A. B. Gripp, B. Fabiani, E. Silveira, D. Nascimento
{"title":"Design of a microstrip antenna array with polarization diversity for DoA application","authors":"T. A. B. Gripp, B. Fabiani, E. Silveira, D. Nascimento","doi":"10.1109/IMOC.2017.8121092","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121092","url":null,"abstract":"This paper presents the design, manufacture and tests of a microstrip antenna array with polarization diversity for radiofrequency sources tracking. The designed array is a composite part of a system based on the MUSIC (Multiple Signal Classification) algorithm, showing the importance of considering the use of polarization diversity in order to obtain a reliable solution of Direction of Arrival (DoA) of the incoming RF signal. The array performance is verified by means of some tests using a manufactured prototype.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126402118","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
Implementation of a broadband photonics-assisted RF amplifier toward 5G networks 面向5G网络的宽带光子辅助射频放大器的实现
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121096
R. Borges, A. M. Muniz, D. F. Noque, S. A. Cerqueira, L. Manera, A. Bogoni
{"title":"Implementation of a broadband photonics-assisted RF amplifier toward 5G networks","authors":"R. Borges, A. M. Muniz, D. F. Noque, S. A. Cerqueira, L. Manera, A. Bogoni","doi":"10.1109/IMOC.2017.8121096","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121096","url":null,"abstract":"We report the implementation of a photonics-assisted RF amplifier for broadband and multiband 5G networks. A 2 Gsymb/s signal with different digital modulation formats at 20 GHz and a 100 Msymb/s high-order digital modulated signal at 6 GHz have been used for characterizing the proposed technology as a function of the RF gain, signal-to-noise ratio and error vector magnitude. Experimental results demonstrate RF amplification, reconfigurability, distortion absence and low phase noise levels through 6, 20 and 38 GHz frequency bands, which have been considered potential for the future 5G networks.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126001492","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
Measurement of RF field strength in home environments from a nearby base station and wireless devices 从附近的基站和无线设备测量家庭环境中的射频场强度
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121072
A. Linhares, Alex Pires de Azevedo, A. Soares
{"title":"Measurement of RF field strength in home environments from a nearby base station and wireless devices","authors":"A. Linhares, Alex Pires de Azevedo, A. Soares","doi":"10.1109/IMOC.2017.8121072","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121072","url":null,"abstract":"This paper presents in-situ evaluations comparing the EMF exposure associated with a BTS installed in the vicinity of an apartment, WLAN device and baby monitor in a typical scenario. The results show that under certain circumstances the exposure in the latter cases can be higher than the former.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134299575","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
All-optical fast fourier transform for processing an optical OFDM superchannel 用于处理光OFDM超级信道的全光快速傅立叶变换
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121075
R. Ferreira, D. M. Dourado, M. M. Rodrigues, M. Rocha, S. Rossi, D. M. Pataca
{"title":"All-optical fast fourier transform for processing an optical OFDM superchannel","authors":"R. Ferreira, D. M. Dourado, M. M. Rodrigues, M. Rocha, S. Rossi, D. M. Pataca","doi":"10.1109/IMOC.2017.8121075","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121075","url":null,"abstract":"This paper presents an experimental and simulated demonstration of an all optical fast Fourier transform (FFT), based on optical interferometry, applied for the dropping of an optical orthogonal frequency division multiplexing (OFDM) carrier. The OFDM signal, comprising an aggregate rate of 75 Gb/s quadrature phase shift keying (QPSK) modulation, was generated from an optical comb, with 12.5 GHz channel spacing, provided by the gain-switching of a semiconductor laser. The experimental results were then used to calibrate a system simulator where an all-optical Inverse FFT was included for the adding of an optical OFDM carrier. A synchronism mechanism was also configured in the simulation setup. The obtained bit error rate (BER) performance below the forward error corrector (FEC) limit for both, experimental and simulated, implementations, demonstrate the node architecture feasability for the optical processing of a superchannel with carrier spectral overlapping.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134314340","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
SDR-based radar-detectors embedded on tablet devices 嵌入在平板设备上的基于sdr的雷达探测器
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121126
Rafael Gonçalves Licursi de Mello, F. R. de Sousa, C. Junqueira
{"title":"SDR-based radar-detectors embedded on tablet devices","authors":"Rafael Gonçalves Licursi de Mello, F. R. de Sousa, C. Junqueira","doi":"10.1109/IMOC.2017.8121126","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121126","url":null,"abstract":"Software-Defined Radio (SDR) technology has already cleared up passive radar applications. Nevertheless, until now, no work has pointed how this flexible radio could fully and directly exploit pulsed radar signals. This paper aims at introducing this field of study presenting not only an SDR-based radar-detector but also how it could be conceived on a low power consumption device as a tablet, which would make convenient a passive network to identify and localize aircraft as a redundancy to the conventional air traffic control in adverse situations. After a brief approach of the main features of the equipment, as well as of the developed processing script, indoor experiments took place. Their results demonstrate that the processing of pulsed radar signal allows emitters to be identified when a local database is confronted. All this commitment has contributed to a greater proposal of an Electronic Intelligence (ELINT) or Electronic Support Measures (ESM) system embedded on a tablet, presenting characteristics of portability and furtiveness. This study is suggested for the areas of Software-Defined Radio, Electronic Warfare, Electromagnetic Devices and Radar Signal Processing.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130865223","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
A trimmable 24 GHz low-noise amplifier with 20 dB gain and 3.7 dB noise figure in 65 nm bulk CMOS 一种增益为20db、噪声系数为3.7 dB的可调24ghz低噪声放大器
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121051
S. Vehring, Yaoshun Ding, P. Scholz, D. Maurath, S. Barbin, Priedel Gerfers, G. Boeck
{"title":"A trimmable 24 GHz low-noise amplifier with 20 dB gain and 3.7 dB noise figure in 65 nm bulk CMOS","authors":"S. Vehring, Yaoshun Ding, P. Scholz, D. Maurath, S. Barbin, Priedel Gerfers, G. Boeck","doi":"10.1109/IMOC.2017.8121051","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121051","url":null,"abstract":"A 24 GHz low-noise amplifier (LNA) with trimming capability is presented. It is demonstrated, that with the proposed trimming concept, frequency shifts due to model uncertainties, process variations, and underestimated parasitic capacitances can be compensated. The realized LNA showed a shift in peak gain of 2.5 GHz towards lower frequencies in the non-trimmed state. After trimming to the specified operating frequency of 24 GHz, a gain degradation of only 0.3 dB is observed. The trimmed LNA achieves a peak gain of 20 dB at 24 GHz with a 3 dB-bandwidth from 21 to 28 GHz, a noise figure of 3.7 dB, and an OIP3 of 15dBm. Furthermore, it is equipped with ESD protection and can be supplied with a single voltage. The active die size and the power consumption are 0.13 mm2 and 17 mW, respectively.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133486102","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
Microwave imaging update: For medical imaging applications 微波成像更新:用于医学成像应用
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121058
R. Stancliff
{"title":"Microwave imaging update: For medical imaging applications","authors":"R. Stancliff","doi":"10.1109/IMOC.2017.8121058","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121058","url":null,"abstract":"This paper provides an update on the progress of Keysight and various partners on Microwave Medical Imaging products, systems, and their commercialization. I discuss the physical basis for this imaging modality and then provide an update on the progress to date of a number of product trials and commercialization activities from Dune Medical, Micrima, Medfield Diagnostics, EMTensor, and MiWa technologies. Extensive references are included. These are not comprehensive but representative of the research ongoing in Microwave Medical Imaging.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132764490","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
Measurement campaign on the electromagnetic environment in the central region of the city of Mossoro 莫索罗市中心地区电磁环境测量活动
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121116
T. A. Santana, Humberto Dionísio de Andrade, I. S. Q. Júnior, Samanta M. de Holanda, José Maurício Lucas da Silva, G. Fontgalland, José de Arimateia Pinto Magno
{"title":"Measurement campaign on the electromagnetic environment in the central region of the city of Mossoro","authors":"T. A. Santana, Humberto Dionísio de Andrade, I. S. Q. Júnior, Samanta M. de Holanda, José Maurício Lucas da Silva, G. Fontgalland, José de Arimateia Pinto Magno","doi":"10.1109/IMOC.2017.8121116","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121116","url":null,"abstract":"The constant technological innovation in the telecommunications area means that more and more people are exposed to electromagnetic radiation from a variety of sources. The concern with the possible health risks that this exposure can cause in the population motivates many organizations to develop studies with the aim to establish limits of human exposure to this type of radiation. The knowledge of these exposure limits and how these fields are spatially distributed are very important to the development of techniques to protect against this kind of radiation. The aim of this paper is to study the distribution of the electromagnetic pollution in the central region of Mossoro by measuring the intensity of the electromagnetic fields in a broad band from 10 MHz to 8 GHz and estimate how these fields are spatially distributed using interpolations techniques.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115344238","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
Beam selection in multiuser millimeter-wave systems with sub-array user terminal architectures 具有子阵列用户终端结构的多用户毫米波系统波束选择
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121064
C. A. Viteri-Mera, F. Teixeira
{"title":"Beam selection in multiuser millimeter-wave systems with sub-array user terminal architectures","authors":"C. A. Viteri-Mera, F. Teixeira","doi":"10.1109/IMOC.2017.8121064","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121064","url":null,"abstract":"Hybrid preceding, which refers to the combined use of phased arrays and digital (baseband) beamforming, is the main transceiver architecture under consideration for millimeter-wave (mmWave) wireless systems. However, this configuration is not suitable for receivers with a single RF chain, that must rely on fully-analog beamforming. In this paper, we consider the problem of finding the best analog beam combination when user terminals have independent analog sub-arrays. We present a novel algorithm for beam selection that separates analog and digital beamforming components. First, we use hierarchical analog beamforming codebooks to obtain a combination of beamformers that maximize SNR at the receivers. We leverage multiple RF chains at the AP and sub-arrays at the users to design such hierarchical codebooks. Second, we use digital zero-forcing beamforming at the transmitter to eliminate inter-user interference. Preliminary numerical results show the effectiveness of our algorithm in simple scenarios.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114928470","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
Parameters optimization for rectangular and circular microstrip antennas using the Taguchi Method 用田口法优化矩形和圆形微带天线的参数
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2017-08-01 DOI: 10.1109/IMOC.2017.8121036
R. Lira, A. Campos
{"title":"Parameters optimization for rectangular and circular microstrip antennas using the Taguchi Method","authors":"R. Lira, A. Campos","doi":"10.1109/IMOC.2017.8121036","DOIUrl":"https://doi.org/10.1109/IMOC.2017.8121036","url":null,"abstract":"The main goal of this work is to find the required parameters for the construction of microstrip antennas, which have rectangular and circular patch. For this, an optimization technique is used, the Taguchi Method, where each parameter is defined from the desired resonance frequency, from the electrical characteristics of the material that will be used to fabricated the antenna (thickness and dielectric constant of the substrate) and the definition of maximum and minimum values that the parameters can achieve. Numerical and experimental results are presented for validation purpose of the technique.","PeriodicalId":171284,"journal":{"name":"2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115041954","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
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