Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004.最新文献_第2页

Low voltage surface transverse wave oscillators for the next generation CMOS technology 用于下一代CMOS技术的低压表面横波振荡器

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418491

I. Avramov

{"title":"Low voltage surface transverse wave oscillators for the next generation CMOS technology","authors":"I. Avramov","doi":"10.1109/FREQ.2004.1418491","DOIUrl":"https://doi.org/10.1109/FREQ.2004.1418491","url":null,"abstract":"The design and performance of surface transverse wave (STW) based VCOs (VCSO) in the lower GHz frequency range, operating on supply and tuning voltages in the 1.2 to 3.3 V range, are presented. The VCSO outputs are switched between 0 V and the positive supply voltage U/sub S/ to provide safe CMOS-circuit switching while keeping the RF/DC efficiency to a maximum for low DC power consumption. This is achieved by operating the active oscillator circuit in one of the switched nonlinear classes that are known for their high power and efficiency, and low phase noise. The investigated 1.0 and 2.5 GHz VCSOs are varactor tuned feedback-loop oscillators stabilized with two-port STW resonators. Each VCSO has a DC coupled high-impedance switched output to drive the CMOS circuit directly, and an additional sinusoidal 50 /spl Omega/ high-power output available for other low-noise system applications. Phase noise levels in the -103 to -115 dBc/Hz at 1 kHz carrier offset are achieved with a 1 GHz VCSO at an RF/DC efficiency in the 21 to 29% range. The 2.5 GHz prototypes demonstrate phase noise levels in the -97 to -102 dBc/Hz at 1 kHz carrier offset and efficiencies range between 8 and 15%.","PeriodicalId":369162,"journal":{"name":"Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129054118","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: 8

All-optical atomic clock on a chip: progress report 芯片上的全光原子钟:进展报告

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418436

D. Strekalov, A. Savchenkov, A. Matsko, N. Yu, L. Maleki

引用次数: 2

Whispering gallery traveling wave interferometer for low phase noise applications 低相位噪声应用的行波干涉仪

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418562

D. Tsarapkin, N. Shtin

{"title":"Whispering gallery traveling wave interferometer for low phase noise applications","authors":"D. Tsarapkin, N. Shtin","doi":"10.1109/FREQ.2004.1418562","DOIUrl":"https://doi.org/10.1109/FREQ.2004.1418562","url":null,"abstract":"Traveling wave filters utilizing sapphire resonators excited at whispering gallery modes (WGR) have a good perspective for application as a microwave interferometer in the field of ultralow phase noise microwave sources. Our paper examines in detail a classical approach of a traveling wave (TW) disk dielectric WGR coupled with a dielectric waveguide. The TW WGR design is obtained by means of direct electrodynamic 3D FEA. The permittivity properties of WGR were assumed to be the same as for sapphire while its tg/spl delta/ was artificially increased ten times to simplify the FEA procedure. During analysis, an S-parameter matrix of the structure was investigated. It was found that in a TW regime the transmission coefficient of the TW WGR has a bridge-type frequency response similar to that which is realized with the resonator reflected wave extraction using a ferrite circulator. The input reflection coefficient of the structure is found to have a relatively low magnitude. On the other hand, the analysis revealed strong dependence of the TW regime realization on dimensions of the primary dielectric waveguide and coupling parameters.","PeriodicalId":369162,"journal":{"name":"Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004.","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126456367","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

The PHARAO time and frequency performance verification system PHARAO时间和频率性能验证系统

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418567

P. Guillemot, J. Dutrey, J. Vega, M. Chaubet, D. Chebance, C. Sirmain, G. Santarelli, D. Chambon, P. Laurent, M. Rousselet, C. Locke, E. Ivanov, M. Tobar, T. Potier

引用次数: 7

Historical highlights in ultrasonics - 2 超声波的历史亮点- 2

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418421

K. Graff

引用次数: 4

Ultra low drift cryogenic sapphire microwave oscillator 超低漂移低温蓝宝石微波振荡器

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418485

P. Bourgeois, Y. Kersalé, N. Bazin, M. Chaubet, V. Giordano

引用次数: 1

SH-SAW transducer analysis on single crystal KNbO/sub 3/ for liquid sensors 液体传感器单晶KNbO/sub 3/ SH-SAW换能器分析

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418487

T. Pollard, T. Kenny, P. Cunha

引用次数: 0

Packaging of surface acoustic wave (SAW) based biosensors: an important issue for future biomedical applications 基于表面声波(SAW)的生物传感器的包装:未来生物医学应用的一个重要问题

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418473

K. Lange, G. Blaess, A. Volgt, M. Rapp, E. Hansjosten, U. Schygulla

引用次数: 5

Bond process monitoring via self-sensing piezoelectric transducers 基于自传感压电传感器的键合过程监测

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418440

M. Brokelmann, J. Wallaschek, H. Hesse

引用次数: 13

Methods for reducing microwave resonance asymmetry in coherent population trapping based frequency standards 基于频率标准的相干种群捕获微波共振不对称性降低方法

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418443

J. Berberian, L. Cutler, Miao Zhu

引用次数: 1