发布求助
文献互助 智能选刊 最新文献

2006 IEEE International Frequency Control Symposium and Exposition最新文献

筛选
英文 中文
2nd Harmonic Power Enhancement of FET DRO with Additional Dielectric Resonator 附加介质谐振腔对FET DRO的二次谐波功率增强
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275505
J. Kwon, I. Kim
{"title":"2nd Harmonic Power Enhancement of FET DRO with Additional Dielectric Resonator","authors":"J. Kwon, I. Kim","doi":"10.1109/FREQ.2006.275505","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275505","url":null,"abstract":"This paper reports that the output signal power of a series feedback FET DRO (dielectric resonator oscillator), at the second harmonic frequency, can be significantly enhanced with an additional DR (dielectric resonator) at the drain port. This enhancement has been observed by an experiment and analyzed based on reflection and feedback mechanism between two DRs. Finally we propose that there is an optimum reflection condition and location of the second DR to extract the maximum output power at the second harmonic frequency from the FET DRO","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125048528","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
Tutorial Session 3B - Passive Atomic Frequency Standards 辅导课3B -被动原子频率标准
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275332
W. Riley
{"title":"Tutorial Session 3B - Passive Atomic Frequency Standards","authors":"W. Riley","doi":"10.1109/FREQ.2006.275332","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275332","url":null,"abstract":"This tutorial is an introduction to the basic physics and electronics of passive atomic frequency standards (AFS). A passive AFS is the most common type of atomic clock. It uses a crystal oscillator or other frequency source to excite a passive atomic discriminator that produces a correction signal in a frequency control loop to lock the oscillator to the atomic reference. The crystal oscillator then provides a stable output frequency. The types of atomic resonator (physics package) in these devices include the rubidium gas cell, the cesium beam tube (magnetically selected or laser pumped/detected), the passive hydrogen maser, the trapped mercury ion, cesium or rubidium fountains, several types of optical standards, and, most recently, devices using coherent population trapping, including the chip-scale atomic clock. The rubidium gas cell frequency standard, by far the most widely used such device, will be covered in the most detail.","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125079208","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
88Sr+ Single-Ion Optical Frequency Standard 88Sr+单离子光频率标准
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275420
P. Dubé, A. Madej, J. Bernard, A. Shiner
{"title":"88Sr+ Single-Ion Optical Frequency Standard","authors":"P. Dubé, A. Madej, J. Bernard, A. Shiner","doi":"10.1109/FREQ.2006.275420","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275420","url":null,"abstract":"The electric quadrupole shift is an important source of systematic uncertainty in several single-ion optical frequency standards. In this paper, we review the electric quadrupole shift cancellation method based on the Zeeman spectrum of the clock transition. The method is demonstrated with an actual frequency measurement of the 5s2S 1/2-4d2D5/2 transition of 88Sr+. This cancellation method also removes shifts from the tensor part of the Stark effect. Further analysis of the data provides an evaluation of the micromotion shifts which are then applied to correct the observed ion clock frequency. Recent improvements to our probe laser system and the observation of Fourier-transform limited linewidths of 5 Hz at 445 THz are also reported","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121102511","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
Parallel-Coupled Square-Resonator Micromechanical Filter Arrays 平行耦合方形谐振器微机械滤波器阵列
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275434
J.R. Clark, Minfan Pai, B. Wissman, G. He, W. Hsu
{"title":"Parallel-Coupled Square-Resonator Micromechanical Filter Arrays","authors":"J.R. Clark, Minfan Pai, B. Wissman, G. He, W. Hsu","doi":"10.1109/FREQ.2006.275434","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275434","url":null,"abstract":"Large, parallel-coupled arrays of micromechanical square resonators have been demonstrated, greatly reducing the equivalent impedance of the aggregate resonator by up to a factor of 30 in an array of 30 strongly-coupled devices while retaining quality factors approaching 10,000. In addition, multiple strong-coupled arrays have been weakly coupled via mechanical linkage in order to form a 10.7MHz IF filter, such as would be required in a heterodyning FM radio system, with greatly reduced matching impedance requirements","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116395104","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: 12
A Low Phase Noise Microwave Sapphire Loop Oscillator 一种低相位噪声微波蓝宝石环振荡器
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275501
D. Green, C. McNeilage, J. Searls
{"title":"A Low Phase Noise Microwave Sapphire Loop Oscillator","authors":"D. Green, C. McNeilage, J. Searls","doi":"10.1109/FREQ.2006.275501","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275501","url":null,"abstract":"A tuneable 10.24 GHz microwave oscillator based on a sapphire-loaded cavity (SLQ resonator operating in a \"whispering gallery\"-mode has been built. Extremely low phase noise of -130 dBc/Hz @ 1 kHz and -179 dBc/Hz floor has been measured, without the need for any form of noise reduction. This level of performance is made possible by the high Q factor of the SLC resonator, together with the low phase noise of a commercially-available sustaining amplifier based on a parallel combination of heterojunction bipolar transistors (HBTs). This paper presents the results for the performance of this low phase noise, sapphire resonator based loop (SLOOP) oscillator. The SLOOP has an SLC resonator with a significantly improved start-up time over previous sapphire-based resonators, coming to temperature lock within 2 minutes over the operating temperature range 0 to +55degC","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126864253","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: 11
Investigation of an Optimum Sampling Interval for a Local Clock TIE Model with an Unbiased FIR Filtering Algorithm 基于无偏FIR滤波算法的本地时钟TIE模型的最佳采样间隔研究
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275455
J. Munoz-Diaz, Y. Shmaliy, L. Arceo-Miquel, O. Ibarra-Manzano
{"title":"Investigation of an Optimum Sampling Interval for a Local Clock TIE Model with an Unbiased FIR Filtering Algorithm","authors":"J. Munoz-Diaz, Y. Shmaliy, L. Arceo-Miquel, O. Ibarra-Manzano","doi":"10.1109/FREQ.2006.275455","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275455","url":null,"abstract":"An investigation of the optimal time step (sampling interval) is provided for the time interval error (TIE) model of a local crystal clock in GPS-based timekeeping. For the sawtooth noise of a receiver, the local clock states are estimated employing an unbiased finite impulse response (FIR) filtering algorithm. We exploit the local crystal clock imbedded to the Stanford Frequency Counter SR620. The measurements are provided using the SynPaQ III GPS Sensor as a timing receiver and rubidium clock (SR625) as a reference source of time for the crystal clock","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127516583","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: 10
The Impact of Finite Element Analysis on the Design of Quartz Resonators 有限元分析对石英谐振器设计的影响
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275345
Y. Yong, M.S. Patel, S. Srivastava, M. Tanaka, T. Imai
{"title":"The Impact of Finite Element Analysis on the Design of Quartz Resonators","authors":"Y. Yong, M.S. Patel, S. Srivastava, M. Tanaka, T. Imai","doi":"10.1109/FREQ.2006.275345","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275345","url":null,"abstract":"A review of the finite element method for the analysis and design of quartz resonators is presented. Finite element analysis of the factors which impact on the performance of high quality quartz resonators are discussed. Novel techniques for the visualization of frequency spectra, calculation of resonator Q, and modeling of the effects of thermal stresses on the f-T behavior are presented. Good comparisons of simulated finite element results with their respective experimental results were found","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126949867","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: 9
Interim report on the round robin result of phase jitter measurement in crystal oscillators and SAW oscillators 晶体振荡器和SAW振荡器相位抖动测量轮循结果的中期报告
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275390
M. Koyama, T. Hosoda, T. Uchiyama
{"title":"Interim report on the round robin result of phase jitter measurement in crystal oscillators and SAW oscillators","authors":"M. Koyama, T. Hosoda, T. Uchiyama","doi":"10.1109/FREQ.2006.275390","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275390","url":null,"abstract":"In this paper, progress of the domestic (Japan) round robin phase jitter measurement of quartz crystal oscillators and SAW oscillators is explained. Users apply the SONET/SDH analyzer to measure the phase jitter of quartz crystal oscillators and SAW oscillators, which is currently in demand. The SONET/SDH analyzer was chosen as the measurement device with the intention of establishing an international standard. This paper attempts to display the process of international standardization, with reference to the progress of the domestic round robin measurement of quartz crystal oscillators and SAW oscillators. The occurrence of measurement errors, and the values demanded by the users that could not be guaranteed were shown","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130481079","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
Calculation of Bi-mesa Structures Suitable for Mounting 适合安装的双台面结构计算
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275379
S. Goka, Y. Mase, H. Sekimoto, Y. Watanabe
{"title":"Calculation of Bi-mesa Structures Suitable for Mounting","authors":"S. Goka, Y. Mase, H. Sekimoto, Y. Watanabe","doi":"10.1109/FREQ.2006.275379","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275379","url":null,"abstract":"We calculated an improved bimesa structure, ones that has two mesa steps and is suitable for mounting using a two-dimensional finite element method in the X-Y' region. The frequency differences between clamp and free X-edge conditions were estimated as an index of mounting influences. When the outer mesa height was lower than 20% of the thick area, the frequency differences were less than 10% of standard-type bimesa resonator values. These results indicate that our bi-mesa structure has good separation from the mounting influences","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132579574","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
Relativity and Timing in X-ray Pulsar Navigation x射线脉冲星导航中的相对论和定时
2006 IEEE International Frequency Control Symposium and Exposition Pub Date : 2006-06-01 DOI: 10.1109/FREQ.2006.275485
N. Ashby, D. Howe
{"title":"Relativity and Timing in X-ray Pulsar Navigation","authors":"N. Ashby, D. Howe","doi":"10.1109/FREQ.2006.275485","DOIUrl":"https://doi.org/10.1109/FREQ.2006.275485","url":null,"abstract":"XNAV is a technology demonstration involving many organizations that will use photons from X-ray pulsars for navigation and spacecraft attitude determination. This paper summarizes relativistic effects in the context of XNAV. It also characterizes the primary task in the time domain of realizing an on-board master clock that time-tags detected X-ray photons with sufficient accuracy to permit meaningful navigation solutions. XNAV must first estimate the periods of uncatalogued X-ray pulsars to determine suitable candidate pulsars for navigation. This task will use an efficient search algorithm to determine the pulsar period from a sensor aimed at the pulsar. As a part of this search and catalogue task, an accumulator that integrates photon counts will compute average counts per sampling time interval, in time bins that are small compared to the pulsar's period. This operation is dubbed the pulsar profiler function. It is intended to build a reference or standard profile of a chosen pulsar for later use. The search and catalogue need to be sufficient for navigation based on times-of-arrival of pulsar signals in real time vs. the on-board reference clock. Operationally, the timing module locates in time the highest peak (or other defined phase center) in the group velocity of received, periodic plane-wave pulses from catalogued pulsars. The goal is to permit navigation accuracy approaching 100 m. This will be accomplished by cross-correlation of catalogued profiles to incoming profiles based on X-ray sensor data collected in real time","PeriodicalId":445945,"journal":{"name":"2006 IEEE International Frequency Control Symposium and Exposition","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134216649","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: 9
首页 上一页
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：481959085
Book学术官方微信