2016 IEEE International Frequency Control Symposium (IFCS)最新文献_第3页

Improvement of short-term frequency stability of the Chip Scale Atomic Clock 芯片级原子钟短期频率稳定性的改进

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546746

Tomás Bagala, Adam Fibich, P. Kubinec, V. Stofanik

引用次数: 4

Delay measurements of PPS signals in timing systems 定时系统中PPS信号的延迟测量

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563588

M. Siccardi, D. Rovera, S. Romisch

引用次数: 8

Time dissemination services: The experimental results of the European H2020 DEMETRA project 时间传播服务:欧洲H2020 DEMETRA项目实验结果

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563585

P. Tavella, I. Sesia, G. Cerretto, G. Signorile, D. Calonico, R. Costa, C. Clivati, E. Cantoni, C. De Stefano, M. Frittelli, V. Formichella, T. Widomski, J. Kaczmarek, J. Uzycki, K. Borgulski, P. Olbrysz, J. Kowalski, P. Cerabolini, E. Biserni, V. Leone, E. Zarroli, D. Sormani, A. Cernigliaro, F. Fiasca, A. Perucca, S. Mantero, P. Defraigne, N. Ozdemir, Q. Baire, V. Dhiri, M. T. Veiga, T. Suárez, J. Diaz, M. Gandara, V. Hamoniaux, M. Mangiantini, A. Wallin, E. Varriale, Q. Morante, L. Galleani

{"title":"Time dissemination services: The experimental results of the European H2020 DEMETRA project","authors":"P. Tavella, I. Sesia, G. Cerretto, G. Signorile, D. Calonico, R. Costa, C. Clivati, E. Cantoni, C. De Stefano, M. Frittelli, V. Formichella, T. Widomski, J. Kaczmarek, J. Uzycki, K. Borgulski, P. Olbrysz, J. Kowalski, P. Cerabolini, E. Biserni, V. Leone, E. Zarroli, D. Sormani, A. Cernigliaro, F. Fiasca, A. Perucca, S. Mantero, P. Defraigne, N. Ozdemir, Q. Baire, V. Dhiri, M. T. Veiga, T. Suárez, J. Diaz, M. Gandara, V. Hamoniaux, M. Mangiantini, A. Wallin, E. Varriale, Q. Morante, L. Galleani","doi":"10.1109/FCS.2016.7563585","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563585","url":null,"abstract":"In 2015 and 2016 a European Consortium of 15 scientific and industrial partners from 8 different countries collaborates on the DEMETRA (DEMonstrator of EGNSS services based on Time Reference Architecture) project, funded by the European Union in the frame of the Horizon 2020 program, aimed at developing and experimenting time dissemination services based on the European GNSS. The project aims at being a prototype of an European time dissemination service, based on the timing signal of the Galileo system, adding particular features like - among the others - certification, calibration, or integrity, that could be of interest to a wide range of users belonging to different sectors as traffic control, energy distribution, finance, telecom, and scientific institutions. Nine time dissemination services are proposed. The project is under experimentation since March 2016, we report the first experimentation results of the system, showing potentialities and limits of the proposed services, aiming to foster the development and possibly standardization of the time dissemination services.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132704971","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: 7

Optical comb frequency-controlled by rotating polarization state 光梳由旋转偏振态控制频率

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546769

Yanyan Zhang, Lulu Yan, S. Fan, Maoqiang Chen, Wenyu Zhao, Wenge Guo, Shougang Zhang, Haifeng Jiang

引用次数: 0

Unshielded scalar magnetometer based on nonlinear magneto-optical rotation with amplitude modulated light 非屏蔽标量磁强计基于非线性磁光旋转与调幅光

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546761

Wenhao Li, Xiang Peng, Songjian Li, Chuanfei Liu, Hong Guo, Pingwei Lin, Wei Zhang

引用次数: 5

Piezoelectric disk flexure resonator with 1 dB loss 损耗为1db的压电盘弯曲谐振器

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546788

R. Rudy, J. Pulskamp, S. Bedair, J. Puder, R. Polcawich

引用次数: 14

Temperature and trim effect compensation of a VCXO using a multidimensional segmented polynomial array 基于多维分段多项式阵列的VCXO温度和修剪效应补偿

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546745

J. Esterline, A. Snavely

{"title":"Temperature and trim effect compensation of a VCXO using a multidimensional segmented polynomial array","authors":"J. Esterline, A. Snavely","doi":"10.1109/FCS.2016.7546745","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546745","url":null,"abstract":"Voltage Controlled Crystal Oscillators (VCXOs) are widely used and well known frequency control products. VCXOs are typically characterized by having wide frequency pulling ranges (greater than ±50ppm). These oscillators are also uncompensated for temperature performance. This means temperature performance of ±20ppm or more is typical over the industrial range of -40 to 85 °C. Trim effect is a skewing of the frequency versus temperature performance of a crystal oscillator as the frequency is pulled (trimmed) away from the oscillator's nominal frequency. Even though unwanted, the degradation of performance from trim effect is something generally accepted as a characteristic of VCXOs. This paper focuses on a method of compensating crystal oscillator temperature and trim effect using a multi-dimensional segmented polynomial array. The inherent trim effect has been reduced from approximately ±11ppm down to ±0.5ppm. This is a 22-fold improvement over the inherent performance. The theory of this compensation method will be discussed, and data showing the results of temperature and trim effect compensation on actual oscillators will be presented.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123562941","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

Improving manufacturability of FBAR filters on 200mm wafers 提高FBAR滤波器在200mm晶圆上的可制造性

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546731

S. Mishin, Y. Oshmyansky

{"title":"Improving manufacturability of FBAR filters on 200mm wafers","authors":"S. Mishin, Y. Oshmyansky","doi":"10.1109/FCS.2016.7546731","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546731","url":null,"abstract":"FBAR (thin film bulk acoustic resonator) filters are widely used in making filters for wireless applications [1]. Until recently, most of the FBAR filters were manufactured on 150mm wafers. In the last couple of years, manufacturing of the FBAR devices started moving onto 200mm wafers. Main reason to move from 150mm wafers to 200mm wafer is that area increases by a factor of about 1.8X. Unfortunately, if the edge exclusion has to be increased in order to avoid bad stress or thickness non-uniformity near the edge of the wafer, it reduces the advantages of the increased area. For example, if the edge exclusion is increased from 3mm to 10mm, it causes 14% yield reduction. This problem has inspired the investigation in the paper. One of the critical parameters for FBAR manufacture is AlN film stress, both, average and across a wafer. If stress varies too much, membranes can develop cracks or peel off. In BAW applications, that don't require stress control for structural reason, it is desirable to keep stress uniform across wafer in order to maintain tight distribution of coupling coefficient. Another critical parameter is film thickness. AlN (aluminum nitride) thickness control of +/-0.2% wafer-to-wafer and across wafer are important in order to obtain high yielding wafers. In this paper we will propose a way to obtain both stress control and film thickness uniformity. Independent stress control is obtained by carefully designing sputtering magnetron with variable magnetic field. Thickness uniformity is independently controlled by ion mill trimming module. By adjusting magnetic field and the length of the plasma discharge (positive plasma column), stress uniformity across 200mm wafer was maintained at less than +/-75MPa. Thickness control on 200mm wafers with only 3mm edge exclusion was demonstrated at <;0.2%.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123694397","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

On systematic uncertainties in UTC 关于UTC的系统不确定度

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546765

D. Matsakis

引用次数: 1

A novel UWB Balun: Application in 5G systems 一种新型超宽带平衡器:在5G系统中的应用

2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546747

A. Poddar, U. Rohde, V. Madhavan, S. Koul

引用次数: 6