发布求助
文献互助 智能选刊 最新文献

2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)最新文献

筛选
英文 中文
Modal analysis of a photonic quasicrystal fiber doped with germanium 掺锗光子准晶体光纤的模态分析
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646448
Jose Patrocinio da Silva, Emmanuel R. M. Dantas
{"title":"Modal analysis of a photonic quasicrystal fiber doped with germanium","authors":"Jose Patrocinio da Silva, Emmanuel R. M. Dantas","doi":"10.1109/IMOC.2013.6646448","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646448","url":null,"abstract":"Optical fibers constituted by photonic quasi-crystals it is based on aperiodic structures characterized by at least two different symmetrical patterns. In this work an optical fiber constitute by quasi-periodic and symmetric matrix is analyzed using the finite element method in conjunction with cylindrical perfectly matched layers. The structure is composed of silica doped with germanium and originates from six distributions of air holes symmetrically arranged.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127465129","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
Suspended core size effect in interaction of longitudinal acoustic waves and fiber Bragg gratings 纵向声波与光纤Bragg光栅相互作用中的悬浮芯尺寸效应
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646539
Ricardo E. Silva, A. Hartung, M. Rothhardt, A. Pohl, H. Bartelt
{"title":"Suspended core size effect in interaction of longitudinal acoustic waves and fiber Bragg gratings","authors":"Ricardo E. Silva, A. Hartung, M. Rothhardt, A. Pohl, H. Bartelt","doi":"10.1109/IMOC.2013.6646539","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646539","url":null,"abstract":"The interaction between longitudinal acoustic waves and Bragg gratings is numerically investigated for suspended core fibers. The encircle core is increased from 1 to 6.6 μm and the mechanical properties and the grating properties are calculated using a finite element method and a transfer matrix method. Interestingly, while the generated strain in the core increases with decreasing core diameter, the achievable side lobe reflectivity of the Bragg gratings is reduced.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131053185","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
Analysis of a coaxial horn antenna using FDTD bidimensional method 用时域有限差分二维法分析同轴喇叭天线
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646569
F. Barros, S. Silva, W. Fonseca, S. R. Zang, J. Bergmann
{"title":"Analysis of a coaxial horn antenna using FDTD bidimensional method","authors":"F. Barros, S. Silva, W. Fonseca, S. R. Zang, J. Bergmann","doi":"10.1109/IMOC.2013.6646569","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646569","url":null,"abstract":"In this work an analysis of a coaxial TEM horn with loaded dielectric coupling structure is proposed, which is excited by pulsed signal with short duration. Due to the circularly symmetry of this horn a bi-dimensional analysis with FDTD technique was possible, and the results for the radiation pattern are compared with measurements.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128881734","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
Highly practical polarization tracking system 高度实用的极化跟踪系统
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646534
V. P. Magri, A. Toledo, J. A. Souza, J. B. Carvalho, M. Mosso
{"title":"Highly practical polarization tracking system","authors":"V. P. Magri, A. Toledo, J. A. Souza, J. B. Carvalho, M. Mosso","doi":"10.1109/IMOC.2013.6646534","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646534","url":null,"abstract":"In this paper, State of Polarization Self-Controller (SOP-SC) employing an ultra low-cost and low-consumption hardware - based on the ALTERA FLEX EPF10K10LC84 FPGA [8], two conditioning block e three 8-bits conversion blocks (one A/D e two D/A) are implemented at component level. As a dedicated FPGA feedback algorithm is activated to tolerate output (+/-5%) variation instead a maximum value, polarization tracking is obtained by only two ports of an optical controller. The electronic circuits and board construction are described and main results discussed.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132170533","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 microstrip triangular spiral resonator for bandpass filter design 用于带通滤波器设计的微带三角形螺旋谐振器
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646600
L. S. Araujo, A. D. de Oliveira
{"title":"A microstrip triangular spiral resonator for bandpass filter design","authors":"L. S. Araujo, A. D. de Oliveira","doi":"10.1109/IMOC.2013.6646600","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646600","url":null,"abstract":"This paper presents the design of a microstrip Chebyshev filter based on a triangular spiral resonator. Its performance is here reported and compared with the performance of a filter designed based on a simple microstrip triangular open loop resonator. The objective of the paper is to show that a triangular spiral resonator filter with the area equal to the area reduced of 48 % of a filter based on the triangular open loop resonator can perform very similarly in the band of interest and with the same Chebyshev characteristics. Experimental results are reported and confirm the prediction.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122319910","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
Performance of cylindrical CFS-PML in the frequency domain: A study of radial CFS-PML in coaxial structures 圆柱形CFS-PML的频域性能:同轴结构中径向CFS-PML的研究
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646528
Ana Paula M. Lima, M. S. Novo
{"title":"Performance of cylindrical CFS-PML in the frequency domain: A study of radial CFS-PML in coaxial structures","authors":"Ana Paula M. Lima, M. S. Novo","doi":"10.1109/IMOC.2013.6646528","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646528","url":null,"abstract":"A cylindrical complex-frequency-shifted perfectly matched layers (CFS-PML) absorbing boundary condition (ABC) is applied in the bi-dimensional (2-D) finite volume (FV) method. The impact of CFS-PML parameters on the wave absorption, as well as on the condition number of the associated system matrix is examinated by comparing the performance of two PML loss profiles, viz., polynomial and geometric grading. The discretization error due to FV approximation is also studied. FV results are validated against analytical solution. Results show that both profiles have similar performance in terms of absorption wave and conditioning of the associated system matrix.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125249781","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
Microwave propagation experiments on a gradient array of split-ring resonators 分环谐振器梯度阵列上的微波传播实验
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646542
P. J. Castro, J. Barroso, J. Neto, Antônio Tomaz
{"title":"Microwave propagation experiments on a gradient array of split-ring resonators","authors":"P. J. Castro, J. Barroso, J. Neto, Antônio Tomaz","doi":"10.1109/IMOC.2013.6646542","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646542","url":null,"abstract":"A study of a gradient array of split-ring resonators is conducted experimentally to verify the transmission band resulting from the electrical and magnetic responses. Microwave propagation due to the magnetic response in a X-band waveguide below cutoff is obtained at about 4.40 GHz with a large bandwidth of 1.08 GHz and a neat intensity of 65 dB above the floor noise when tuned by a magnetic loop. Measured transmission bands corresponding to magnetic and electrical frequencies are compared with simulation model with good agreement.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125200614","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
Effect of truncating the superstructures in broadband Fabry-Pèrot cavity antennas 截断宽带fabry - p<e:1>腔天线中上部结构的影响
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646443
R. Hashmi, B. A. Zeb, K. Esselle, S. Hay
{"title":"Effect of truncating the superstructures in broadband Fabry-Pèrot cavity antennas","authors":"R. Hashmi, B. A. Zeb, K. Esselle, S. Hay","doi":"10.1109/IMOC.2013.6646443","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646443","url":null,"abstract":"Fabry-Perot cavity antennas, while offering design simplicity and high directivity, are promising candidates for microwave and millimeter wave communication links. Recommendations for effectively truncating the 1-D/2-D periodic structures, designed to act as superstructures in such antennas, are presented. It is shown that the aperture size in such antennas contributes, in part, towards the directivity-bandwidth product. A simple Fabry-Perot cavity antenna which uses a two layered 1-D Electromagnetic Band Gap (EBG) structure as its superstructure is studied to quantify the effects of aperture size on peak directivity and half-power directivity-bandwidth. Conventional aperture size for such antennas ranges from 5-6λ02, which results in over-dimensioning as well as narrowband behavior. It is shown that comparable performance with existing designs can be achieved by using much smaller aperture sizes and thus reducing the antenna footprint. This work serves as a guide to effectively choose and fine-tune aperture sizes for Fabry-Perot cavity antennas, thus reducing the redundant computational load in the full-scale design process.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122427383","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
State of the art of nonlinear transmission lines for applications in high power microwaves 应用于高功率微波的非线性传输线的研究现状
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646475
J. O. Rossi, L. P. Silva Neto, F. S. Yamasaki, J. Barroso
{"title":"State of the art of nonlinear transmission lines for applications in high power microwaves","authors":"J. O. Rossi, L. P. Silva Neto, F. S. Yamasaki, J. Barroso","doi":"10.1109/IMOC.2013.6646475","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646475","url":null,"abstract":"Nonlinear transmission lines have been used with great success in pulse sharpening for obtaining output fast pulse rise times in nanosecond and picosecond ranges. Nowadays recent research on this field has shown a great prospect for RF generation using these devices in aerospace application such as in ultra-wide band radar for communications, remote sensing and surveillance due to less attenuation and electromagnetic interference. Also other important applications are envisioned in high power microwave sources for battlefield communication disruption and space vehicle systems as they can replace electronic tubes without the need of vacuum and heating. A nonlinear transmission line basically consists of a lumped LC line using a nonlinear element (variable inductance or capacitance) or a continuous transmission line using a nonlinear medium (ferroelectric or ferrimagnetic). In this paper the state of art for both configurations are discussed as well as their main characteristics and limitations.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127629384","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: 20
The development of low-complexity ultra wideband circuit transmitter-receiver architecture for digital data transmission using discrete components 采用离散元件进行数字数据传输的低复杂度超宽带电路收发架构的开发
2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI: 10.1109/IMOC.2013.6646558
S. Gonçalves, Marcelo J. P. da Silva, L. M. Tomaz, W. C. Soares, U. C. Resende
{"title":"The development of low-complexity ultra wideband circuit transmitter-receiver architecture for digital data transmission using discrete components","authors":"S. Gonçalves, Marcelo J. P. da Silva, L. M. Tomaz, W. C. Soares, U. C. Resende","doi":"10.1109/IMOC.2013.6646558","DOIUrl":"https://doi.org/10.1109/IMOC.2013.6646558","url":null,"abstract":"The architecture of a low-complexity ultra wideband (UWB) impulse radio (IR) transmitter and receiver circuit, aimed for low-cost applications is presented. To project a simple and commercially available circuit, low-cost discrete components were used in the design. This work presents the circuit schematics, simulations and experimental tests of a transmitter- receiver pair using a microstrip definer CPW fed UWB antenna integrated. The circuit technology used was the Bipolar Junction Transistor, which is widely known and studied and commercially available. The most relevant in this paper was to validate the design of a UWB transmitter-receiver system in a frequency range defined for short distances, more specifically between 3 and 5 GHz at a distance of 10 cm.","PeriodicalId":395359,"journal":{"name":"2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124403213","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
首页 上一页 下一页 尾页
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
现在去查看 取消
×
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：604180095
Book学术官方微信