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

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60 GHz low-loss branch-line hybrid coupler on nanoporous alumina interposer 纳米多孔氧化铝中间层60 GHz低损耗支路杂化耦合器
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317661
B. M. Verona, Gabriel K. Rocha, A. Serrano, G. Rehder
{"title":"60 GHz low-loss branch-line hybrid coupler on nanoporous alumina interposer","authors":"B. M. Verona, Gabriel K. Rocha, A. Serrano, G. Rehder","doi":"10.1109/IMOC43827.2019.9317661","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317661","url":null,"abstract":"This paper presents the design, fabrication and characterization of a low loss branch-line hybrid coupler that operates at 60 GHz. The coupler is fabricated using the Metallic-nanowire-filled-Membrane platform, where the nanoporous alumina substrate is selectively filled with metal, forming nanowires that interconnect the metallic layers, using a simple fabrication procedure. The couplers presented return loss and isolation better than 10 dB for a 20-GHz bandwidth and a maximum power unbalance of 0.4 dB for a 10-GHz bandwidth.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"14 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":"129758912","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
Printed Vector Modulator for 5G Communications Systems 5G通信系统的印刷矢量调制器
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317603
J. Martins, T. Varum, J. N. Matos
{"title":"Printed Vector Modulator for 5G Communications Systems","authors":"J. Martins, T. Varum, J. N. Matos","doi":"10.1109/IMOC43827.2019.9317603","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317603","url":null,"abstract":"This paper presents the design and the experimental results of a 28 GHz vector modulator based on the concept of vector sum. Its compact printed structure uses a 90° hybrid coupler and a Wilkinson power combiner, and is controlled by two reflection-type attenuators, using four p-i-n diodes. The obtained results show that the proposed structure can control both phase and amplitude, simultaneously, with 360° phase shift range, making it suitable for applications using beamforming, in adaptive antennas, such as 5G systems.","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":"129798935","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 and Characterization of Differential Rectifier on Flexible Substrate for WPT/IOT Applications 用于WPT/IOT应用的柔性基板差动整流器的设计和特性
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317669
A. Sidibe, A. Takacs, B. Franciscatto, Jan Mennekens
{"title":"Design and Characterization of Differential Rectifier on Flexible Substrate for WPT/IOT Applications","authors":"A. Sidibe, A. Takacs, B. Franciscatto, Jan Mennekens","doi":"10.1109/IMOC43827.2019.9317669","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317669","url":null,"abstract":"This paper addresses the design and the characterization of a differential rectifier on a flexible PET substrate. The rectifier was designed as part of a planar differential rectenna for supplying battery-less tag suited for volume asset tracking. The dielectric properties of the flexible substrate are measured by using special designed test structures. A maximum output dc voltage 236mV and an RF-to-dc conversion efficiency of 18% were measured on a 10kΩ load when the rectifier is powered with -15dBm input RF signal.","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":"122735927","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
Reducing the 5G Fronthaul Traffic with O-RAN 利用O-RAN减少5G前传流量
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317620
J. Gomes, Jair A. L. Silva, M. Segatto
{"title":"Reducing the 5G Fronthaul Traffic with O-RAN","authors":"J. Gomes, Jair A. L. Silva, M. Segatto","doi":"10.1109/IMOC43827.2019.9317620","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317620","url":null,"abstract":"The fifth generation (5G) of mobile communications wm demand a huge increase in the digital data traffic. The 5Gwm provide bandwidth of at least 100 Mbls per user for an ever increasing number of users. This is prohibitive using Common Public Radio Interface (CPRI) protocol. In order to address this issue, two new fronthaul protocols, named enhanced CPRI (eCPRI) and Open Radio Access Network (O-RAN), have been recently deployed. This paper presents, for the first time, the amount of resource blocks (RBs) per user needed to ensure the minimum data rate of 100 Mb/s per user, and we use the computed minimum value of RBs to compare the fronthaul traffic demanded by the O-RAN protocol with the traffic provided by the CPRI legacy.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"27 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":"114170602","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
Optical Frequency Comb Generation by Dual Drive Mach-Zehnder Modulator with Algorithm-assisted Efficient Amplitude Equalization 基于算法辅助的高效振幅均衡的双驱动马赫-曾德尔调制器光频梳生成
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317691
Leonid A. Huancachoque, Maria L. M. dos Santos, Alexander I. N. B. Pereira, Danierick V. G. Nascimento, A. Bordonalli
{"title":"Optical Frequency Comb Generation by Dual Drive Mach-Zehnder Modulator with Algorithm-assisted Efficient Amplitude Equalization","authors":"Leonid A. Huancachoque, Maria L. M. dos Santos, Alexander I. N. B. Pereira, Danierick V. G. Nascimento, A. Bordonalli","doi":"10.1109/IMOC43827.2019.9317691","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317691","url":null,"abstract":"A theoretical analysis and experimental demonstration of an optical frequency comb generator based on an electro-optical modulating technique designed to achieve line amplitude equalization is presented. For that, a dual drive Mach-Zehnder modulator operating at its over-modulating region was used. After a theoretical analysis, an algorithm was developed to determine the most favorable conditions to obtain an equalized comb. These results were tested experimentally with a low half-wave voltage modulator to generate equalized combs with 18 GHz spacing between their lines and reasonable flatness.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"27 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120854229","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
2.4 GHz Coplanar Patch Antenna with Solar Cell as Radiator for Communication and Energy Harvesting 以太阳能电池为辐射体的2.4 GHz共面贴片天线用于通信和能量收集
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317682
E. V. Cambero, H. P. Paz, V. S. Silva, H. X. Araujo, I. Casella, C. E. Capovilla
{"title":"2.4 GHz Coplanar Patch Antenna with Solar Cell as Radiator for Communication and Energy Harvesting","authors":"E. V. Cambero, H. P. Paz, V. S. Silva, H. X. Araujo, I. Casella, C. E. Capovilla","doi":"10.1109/IMOC43827.2019.9317682","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317682","url":null,"abstract":"This paper presents a solar cell coplanar patch antenna designed to operate in the 2.4 GHz band. The simulation results were validated by the solar cell antenna’s prototype fabrication and characterization. The proposed antenna has a gain of $4.13 mathrm{dBi}, 15.14 %$ bandwidth, and efficiency of $87.1 %$ at 2.45 GHz. Also, the I-V curves of the solar cell were extracted for indoor irradiation levels. The $I_{S C}$ and the $V_{O C}$ were $2.35 mathrm{~mA}$ and 135 mV, respectively, supplying $100 mu mathrm{W}$ in the maximum power point. The satisfactory results endorse the operability of the prototype for simultaneous operation as solar energy harvesting and radiator element.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"65 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":"123826610","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
Investigation of Spectral Tilt and OSNR in Cascade of EDFA with Linear Signal Power Pre-emphasis 以线性信号功率为重点的EDFA级联的频谱倾斜和OSNR研究
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317623
M. J. da Silva, L. Coelho, J. F. M. Filho, R. C. Almeida, Erick de Andrade Barboza, Carmelo J. A. Bastos Filho, D. Chaves, J. M. C. Neto
{"title":"Investigation of Spectral Tilt and OSNR in Cascade of EDFA with Linear Signal Power Pre-emphasis","authors":"M. J. da Silva, L. Coelho, J. F. M. Filho, R. C. Almeida, Erick de Andrade Barboza, Carmelo J. A. Bastos Filho, D. Chaves, J. M. C. Neto","doi":"10.1109/IMOC43827.2019.9317623","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317623","url":null,"abstract":"This work investigates the relationship between signal spectral tilt and OSNR of channels at the output of an EDFAs cascade as a function of a pre-emphasis in the input. We performed simulations using 40 x 256 Gbits/s PM-16QAM modulated channels and by applying a linear power preemphasis in a dB scale on all channels at the transmitter. We implemented the power pre-emphasis using a WSS at the transmitter. The results show that there is an almost linear relationship between the applied pre-emphasis and the signal spectral tilt, but the compensation is not straightforward. The results also show that by minimizing the tilt at the output of the cascade, the minimum OSNR among all channels can be severely penalized due to power attenuation in the preemphasis process.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"42 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":"117011953","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
Bragg grating device fabrication in undoped PMMA mPOF at 266 nm UV waveleng 266nm紫外波长下无掺杂PMMA mPOF Bragg光栅器件的制备
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317608
R. Min, B. Ortega, L. Pereira, T. Paixão, P. André, G. Woyessa, O. Bang, D. Zhong, P. Antunes, J. Pinto, C. Marques
{"title":"Bragg grating device fabrication in undoped PMMA mPOF at 266 nm UV waveleng","authors":"R. Min, B. Ortega, L. Pereira, T. Paixão, P. André, G. Woyessa, O. Bang, D. Zhong, P. Antunes, J. Pinto, C. Marques","doi":"10.1109/IMOC43827.2019.9317608","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317608","url":null,"abstract":"We present the first results about Bragg grating devices in undoped PMMA POF fabricated with relative low cost Nd:YAG laser (when compared with excimer lasers) at 266 nm wavelength at low transmission loss in 850 nm region. Then temperature, humidity and strain characterizations are supplied for potential applications.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"17 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":"117335764","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
Spectrum sharing between 5G networks and fixed services operating in millimeter-waves 5G网络和以毫米波运行的固定业务之间的频谱共享
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317597
Fátima P. A. Teixeira, L. C. Freitas, Joao W. Costa
{"title":"Spectrum sharing between 5G networks and fixed services operating in millimeter-waves","authors":"Fátima P. A. Teixeira, L. C. Freitas, Joao W. Costa","doi":"10.1109/IMOC43827.2019.9317597","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317597","url":null,"abstract":"In this paper, we present a coexistence study between 5G networks and fixed point-to-point service in the 26 GHz band. We evaluated the 5G network co-channel interference over the fixed service, considering different number of cells, geographical location, propagation effects, antenna gains and antenna heights. The results show the separation distance requirements in order to deploy a 5G network without changing the fixed service.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"2 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":"115420736","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
Inscription of a fiber Bragg grating and a Fabry-Pérot interferometer on a MgO-doped optical fiber 光纤Bragg光栅和fabry - p<s:1>干涉仪在掺氧化镁光纤上的刻录
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI: 10.1109/IMOC43827.2019.9317604
T. Paixão, L. Pereira, R. Min, W. Blanc, D. Tosi, C. Molardi, C. Marques, P. Antunes
{"title":"Inscription of a fiber Bragg grating and a Fabry-Pérot interferometer on a MgO-doped optical fiber","authors":"T. Paixão, L. Pereira, R. Min, W. Blanc, D. Tosi, C. Molardi, C. Marques, P. Antunes","doi":"10.1109/IMOC43827.2019.9317604","DOIUrl":"https://doi.org/10.1109/IMOC43827.2019.9317604","url":null,"abstract":"In this paper, the fabrication of fiber Bragg gratings (FBGs) and intrinsic Fabry-Pérot interferometers (IFPIs) on a silica Mg-doped optical fiber is reported. The inscription of both sensing devices was performed by means of a femtosecond laser, using the phase mask method to inscribe the FBG and a micromachining platform for the IFPI. A thermal characterization was performed for both devices, achieving the maximum sensitivities of 9 pm $/ ^{circ}mathrm{C}$ for the FBG and 10 pm $/ ^{circ}mathrm{C}$ for the FPI.","PeriodicalId":175865,"journal":{"name":"2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)","volume":"14 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":"128974173","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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