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2016 IEEE International Frequency Control Symposium (IFCS)最新文献

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Optimization of unreleased CMOS-MEMS RBTs 未发布CMOS-MEMS rbt的优化
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563592
Bichoy Bahr, L. Daniel, D. Weinstein
{"title":"Optimization of unreleased CMOS-MEMS RBTs","authors":"Bichoy Bahr, L. Daniel, D. Weinstein","doi":"10.1109/FCS.2016.7563592","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563592","url":null,"abstract":"In this paper, we present an efficient framework for optimization of MEMS resonators based on model order reduction and memoization to significantly speed-up computations 40 x). Owing to their technological importance and numerous applications, unreleased CMOS resonant body transistors (RBTs) are considered. Their intricate structure requires computationally intensive finite element method (FEM) frequency domain simulations, which hinders their optimization. In this work, numerical optimization combined with a physics-based phononic crystal (PnC) waveguide design enables the realization of unreleased CMOS-RBTs with record breaking performance. The optimized RBTs have been fabricated in IBM 32nm SOI technology, demonstrating a quality factor Q ~ 11,620 at 3.252 GHz for an f · Q ~ 3.8 × 1013.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"6 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":"133980059","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
A ring-down technique implemented in CMOS-MEMS resonator circuits for wide-range pressure sensing applications 在CMOS-MEMS谐振电路中实现的一种环衰技术，用于大范围压力传感应用
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563594
Wan-cheng Chiu, Chin-Yu Chou, Ming-Huang Li, Sheng-Shian Li
{"title":"A ring-down technique implemented in CMOS-MEMS resonator circuits for wide-range pressure sensing applications","authors":"Wan-cheng Chiu, Chin-Yu Chou, Ming-Huang Li, Sheng-Shian Li","doi":"10.1109/FCS.2016.7563594","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563594","url":null,"abstract":"In this work, a 1.2-MHz CMOS-MEMS DETF (double-ended tuning fork) resonator with its on-chip tunable transimpedance amplifier (TIA) is designed to measure the ring-down response of the resonator circuit for pressure sensing applications. From the time-domain ring-down waveform, the frequency and quality factor of the resonator circuit can be extracted corresponding to its environmental pressure. Due to the effect of the squeezed-film damping caused by environmental pressure, the quality factor would change accordingly, thus affecting the waveform of the ring-down characteristic. By measuring the ring-down response under various pressure levels, the designed resonator circuit features a wide pressure sensing range from 0.8 Torr to 220 Torr.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"12 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":"122198466","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
Ultrasonic signal noise reduction processing in borehole imaging application 超声信号降噪处理在井眼成像中的应用
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563546
Zhijuan Zhang, Wei Han, R. Steinsiek, D. Patterson
{"title":"Ultrasonic signal noise reduction processing in borehole imaging application","authors":"Zhijuan Zhang, Wei Han, R. Steinsiek, D. Patterson","doi":"10.1109/FCS.2016.7563546","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563546","url":null,"abstract":"Ultrasonic imaging instruments are routinely used for formation fracture, stratigraphie dip, and borehole shape determination. Pulse-echo transducers measure the properties of the echoes reflected from the formation, and the signal amplitude and travel time are typically displayed as a circumferential image of the borehole wall. However, a significant interference pattern can be generated when the electroacoustic ringdown of the transducer interferes with low amplitude echoes. In this paper, an image signal processing technique based on borehole fluid/eccentricity correction and median filtering is applied to extract the interference pattern. The proposed processing provides a good noise reduction, preserving formation features.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"81 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114105655","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
Temperature compensation of MEMS resonators using sputtered Fluorine-doped silicon dioxide 溅射掺氟二氧化硅的MEMS谐振器温度补偿
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563551
Sina Moradian, S. Shahraini, R. Abdolvand
{"title":"Temperature compensation of MEMS resonators using sputtered Fluorine-doped silicon dioxide","authors":"Sina Moradian, S. Shahraini, R. Abdolvand","doi":"10.1109/FCS.2016.7563551","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563551","url":null,"abstract":"In this paper the linear temperature coefficient of frequency in bulk-extensional MEMS resonators is reduced utilizing a relatively thin layer of sputtered Fluorine-doped silicon dioxide (SIOF). The Fluorine doping is achieved through addition of a Fluorine-containing gas in the Ar/O2 gas mixture of a typical SiO2 RF magnetron sputtering process. Our preliminary results indicate that the temperature coefficient of elasticity (TCE) for SIOF could be significantly larger than that of pure SiO2 (1.35X larger) and that the TCE could be tuned by controlling the fluorine concentration in the SIOF film.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"3 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":"123971211","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
Electrode design of AlN Lamb wave resonators AlN Lamb波谐振器的电极设计
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563573
J. Zou, C. S. Lam
{"title":"Electrode design of AlN Lamb wave resonators","authors":"J. Zou, C. S. Lam","doi":"10.1109/FCS.2016.7563573","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563573","url":null,"abstract":"The impact of electrode configurations, materials, thicknesses and interdigital transducer (IDT) duty factor (DF) on performance of aluminum nitride (AlN) Lamb wave resonators is analyzed and summarized for the first time in this study. By careful design and selection of the transducer and bottom electrodes, the effective electromechanical coupling coefficient (k2eff) of the AlN Lamb wave resonator can be boosted from ~2% to values close to 7%. The results reported in this paper lay the foundation for transducer designs of AlN Lamb wave resonators.","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":"124192383","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: 17
RF-powered micromechanical clock generator 射频驱动的微型机械时钟发生器
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546785
Ruonan Liu, J. Nilchi, C. Nguyen
{"title":"RF-powered micromechanical clock generator","authors":"Ruonan Liu, J. Nilchi, C. Nguyen","doi":"10.1109/FCS.2016.7546785","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546785","url":null,"abstract":"A micromechanical circuit has been demonstrated that harnesses resonant mechanical impact switching to convert received RF energy (at -58dBm) into a local 1-kHz clock output while consuming less than 17.5nW of local battery power, which is 57 times lower than the 1μW of a typical real-time clock (RTC). The principal enabler here is a micromechanical resonant switch (“resoswitch”) that first accepts incoming ASK or FSK clock-modulated RF energy at a carrier frequency, filters it to remove unwanted interferers, provides power gain via resonant impact switching, and finally envelop detects impact impulses to demodulate and recover the clock waveform from the carrier. Since the resulting time domain waveform derives from the presumably very stable clock signal that originally modulated the RF carrier, the resulting local clock can share its accuracy. By dispensing with the need for a positive feedback sustaining amplifier, such a 1-kHz RF-powered mechanical clock generator driving an on-chip inverter gate capacitance of 5fF can potentially operate with only 5pW of battery power, which is 200,000 times lower than the typical RTC! Using an off-chip inverter with 17.5pF of effective capacitance, the current laboratory demonstration at 1-kHz consumes a still tiny 17.5nW.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"183 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":"116216137","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
Research on glowworm swarm optimization localization algorithm based on wireless sensor network 基于无线传感器网络的萤火虫群优化定位算法研究
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546730
Ting Zeng, Yu Hua, Xian Zhao, Tao Liu
{"title":"Research on glowworm swarm optimization localization algorithm based on wireless sensor network","authors":"Ting Zeng, Yu Hua, Xian Zhao, Tao Liu","doi":"10.1109/FCS.2016.7546730","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546730","url":null,"abstract":"For sensor network, the localization of node is one of the current hotspots. In order to improve the localization precision of the unknown nodes, a glowworm swarm optimization localization (GSOL) algorithm is proposed to be applied in wireless sensor network (WSN). Through multiple iterations to solve the optimization issue, the location of unknown nodes can be acquired, and fitness function can be founded. The proposed algorithm can be used for node localization in multidimensional space. The effectiveness of the algorithm has been theoretic analyzed and verified by simulation. The accuracy and stability of node localization have been largely improved, and the performance of the algorithm is much better in case of a bit larger ranging error exist.","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":"123740010","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
High velocity lamb waves in LiTaO3 thin plate for high frequency filters 用于高频滤波器的LiTaO3薄板中的高速lamb波
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546796
Najoua Assila, M. Kadota, Y. Ohashi, Shuji Tanaka
{"title":"High velocity lamb waves in LiTaO3 thin plate for high frequency filters","authors":"Najoua Assila, M. Kadota, Y. Ohashi, Shuji Tanaka","doi":"10.1109/FCS.2016.7546796","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546796","url":null,"abstract":"First anti-symmetric (A<sub>1</sub>) mode Lamb wave propagating in a LiTaO<sub>3</sub> thin plate at an Euler angle around (0°, 45°, 0°) has a high velocity. Both phase velocity and electromechanical coupling factor have been evaluated at different propagation angles (0°, 45°, ψ°). A<sub>1</sub> mode Lamb wave at (0°, 45°, 0°) offers the highest velocity and largest electromechanical coupling factor, thus proving suitable for high frequency devices. Leaky Lamb waves' velocities have been measured for A<sub>0</sub> and zero-th symmetric (S<sub>0</sub>) modes at different propagation angles by ultrasonic microscopy and are almost similar to the calculated Lamb wave velocities. Whereas Ai mode Lamb wave response has been evaluated at (0°, 42°, 0°), (0°, 42°, 45°) and (0°, 42°, 90°) using a network analyzer. The influence of Al-interdigital transducers' (IDT) thickness on the reflection coefficient has been evaluated for thin (0°, 39°, 0°) LiTaO<sub>3</sub>. An IDT's thickness larger than 0.03λ (λ is the wavelength) is needed to fabricate A<sub>1</sub> mode Lamb wave resonators.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"15 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":"125081064","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
Sensitivity improvement of SAW pressure sensors based on finite element analysis 基于有限元分析的SAW压力传感器灵敏度改进
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546821
Juan Ren, Kanat Anurakparadorn, Zhuangde Jiang, Xueyong Wei
{"title":"Sensitivity improvement of SAW pressure sensors based on finite element analysis","authors":"Juan Ren, Kanat Anurakparadorn, Zhuangde Jiang, Xueyong Wei","doi":"10.1109/FCS.2016.7546821","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546821","url":null,"abstract":"This paper evaluates the influence of the geometry design on the sensitivity of SAW (surface acoustic wave) pressure sensors. The SAW propagation characteristics on the pressurized ST-x quartz diaphragm are simulated through the finite element analysis. The pressure sensitivities for different sensor configurations are obtained by studying the resonance frequency over a wide range of the operating pressure. It is found that the estimated sensitivity is almost linear with the frequency and accordingly the pressure sensitivity can be improved effectively by increasing the resonance frequency of the SAW resonators. Meanwhile, the simulation results show that a higher sensitivity can be achieved by the proper design of the number of IDT fingers, and the selection of the resonator location.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"46 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":"121563782","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
Power splitter thermal noise correlations in cross-spectrum noise measurements 跨谱噪声测量中的功率分配器热噪声相关性
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546717
A. Hati, C. Nelson, D. Howe, C. F. Danielson
{"title":"Power splitter thermal noise correlations in cross-spectrum noise measurements","authors":"A. Hati, C. Nelson, D. Howe, C. F. Danielson","doi":"10.1109/FCS.2016.7546717","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546717","url":null,"abstract":"We discuss collapse of the cross-spectrum phase noise measurement of thermally-limited oscillator due to anti-correlated thermal noise of the Wilkinson power splitter. We also examine effect of thermal noise of various resistive power splitters on such noise measurements. In addition, we introduce a novel technique to solve the cross-spectrum collapse.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"7 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":"127820093","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
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