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2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)最新文献

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Random Number Generator Based on Hydrogen Gas Sensor for Security Applications 安全应用中基于氢气传感器的随机数发生器
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8624016
Celal Erbay, Salih Ergun
{"title":"Random Number Generator Based on Hydrogen Gas Sensor for Security Applications","authors":"Celal Erbay, Salih Ergun","doi":"10.1109/MWSCAS.2018.8624016","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8624016","url":null,"abstract":"Cryptographic applications need high-quality random number generator (RNG) for strong security and privacy measures. This paper presents RNG based on a hydrogen gas sensor that is fabricated by using microfabrication techniques. The proposed approach extracts the thermal noise information as an entropy source from the gas sensor that is non-deterministic during its operation and using hash function SHA-256 as post processing. This non-deterministic noise is then processed to acquire a random number set fulfilling the NIST 800–22 statistical randomness test suite and it demonstrates that a gas sensor based RNG can provide high-quality random numbers. Secure data transfer is possible by having this method directly without any other hardware where hydrogen gas sensor needs to be used such as petrochemical field, fuel cells, and nuclear reactors.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"78 Suppl 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129203716","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
H-Field Probe with Active Balun for MRI-Conditional Testing of Medical Devices 用于医疗器械核磁共振条件检测的有源平衡h场探针
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8624070
A. Attaran, W. Handler, B. Chronik
{"title":"H-Field Probe with Active Balun for MRI-Conditional Testing of Medical Devices","authors":"A. Attaran, W. Handler, B. Chronik","doi":"10.1109/MWSCAS.2018.8624070","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8624070","url":null,"abstract":"This work presents the design and construction of a H-field probe with active balun for MRI (magnetic resonance imaging) conditional testing of medical devices. The H-field probe was designed using a small loop antenna with 2 mm radius to have high spatial resolution and sensitivity. It was tuned and matched at a center frequency of 128 MHz, which corresponds to 3 T MRI systems or equivalent RF exposure systems. An active balun with a gain 18.28 dB and noise figure of 0.5 dB was employed to boost the detected H-field signal level. The designed H-field probe and active balun have been fabricated on a double-sided printed circuit board (PCB), FR4 thickness of 1.57 mm and a copper thickness of $35 mu mathrm{m}$, with overall footprint of 22 mm $times11$ mm.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126491407","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
MWSCAS 2018 Speakers
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/mwscas.2018.8623990
{"title":"MWSCAS 2018 Speakers","authors":"","doi":"10.1109/mwscas.2018.8623990","DOIUrl":"https://doi.org/10.1109/mwscas.2018.8623990","url":null,"abstract":"","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125651205","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 High-Resolution Time-Based Resistance-to-Digital Converter with TDC and Counter 带TDC和计数器的高分辨率时基电阻-数字转换器
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8623991
S. Nakagawa, Kaito Horikoshi, H. Ishikuro
{"title":"A High-Resolution Time-Based Resistance-to-Digital Converter with TDC and Counter","authors":"S. Nakagawa, Kaito Horikoshi, H. Ishikuro","doi":"10.1109/MWSCAS.2018.8623991","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8623991","url":null,"abstract":"This paper presents a high resolution time-based resistance-to-digital converter for amp-less high-precision sensor application. In order to solve the trade-off between resolution and bandwidth, a time-to-digital converter (TDC) is combined with a resistance-controlled-oscillator. The TDC is used to measure the fractional part of oscillation period, which realize a high resolution and conversion rate with moderate oscillation frequency. Proposed fractional period estimation technique reduce the required number of TDC and save power consumption. A prototype system was developed and 23 ppm resolution of resistance change at conversion rate of 5kSps was experimentally demonstrated.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132031307","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
Optimal Control Design of Large Scale Systems with Uncertainty 大型不确定系统的最优控制设计
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8624121
Shahah Almutairi, V. Thenmozhi, J. Watkins, M. E. Sawan
{"title":"Optimal Control Design of Large Scale Systems with Uncertainty","authors":"Shahah Almutairi, V. Thenmozhi, J. Watkins, M. E. Sawan","doi":"10.1109/MWSCAS.2018.8624121","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8624121","url":null,"abstract":"In this paper, model reduction techniques are used to design optimal control strategies with low sensitivity to model uncertainty. Two sources of uncertainty are investigated; parameter variation and time delay. To obtain reduced order models, two techniques are considered; aggregation and singular perturbation. Performance sensitivity is reduced by adding a sensitivity measure to the performance index that represents the cost to be minimized. This results in an augmented model that includes the new sensitivity variable, which has the same size as the state vector of the original system. As a result, the order of the dynamic constraint of the optimization procedure will be doubled. Therefore, developing a reduced order model and using it in the design procedure will alleviate the problem of large dimensions. The design is completed based on the reduced order model. Then, such design is used to obtain an approximate design for the full order system.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132358619","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
Reduced-Size On-Wafer Inductors using Slow Wave Techniques 采用慢波技术的小尺寸晶圆电感
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8624102
Ahmad Eldahshan, William Knisely, R. Amaya, C. Plett
{"title":"Reduced-Size On-Wafer Inductors using Slow Wave Techniques","authors":"Ahmad Eldahshan, William Knisely, R. Amaya, C. Plett","doi":"10.1109/MWSCAS.2018.8624102","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8624102","url":null,"abstract":"This paper introduces a study on miniaturizing on-chip RF inductors using the Slow Wave Transmission Line (SWTL) technique. The inductance of different SWTLs is calculated, simulated, fabricated and measured. The lines are treated as two-port networks where their S-parameters and ABCD parameters are extracted, from which their self-inductance is determined. The simulated results have shown a significant reduction in the coplanar microstrip transmission line length reaching 73% with a constant inductance, characteristic impedance, and electrical length. The idea was validated practically by implementing different SWTLs using CMOS 130nm process. The measured and simulated lines are compared and they have shown matched results. Practically the length reduction has reached 30% due to the constraints imposed by the process design rules on the design.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"530 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132559739","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
Hybrid-Powered Internet-of-Things for Infrastructure-to-Vehicle Communication 用于基础设施与车辆通信的混合动力物联网
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8623840
S. Kondapalli, O. Pochettino, K. Aono, S. Chakrabartty
{"title":"Hybrid-Powered Internet-of-Things for Infrastructure-to-Vehicle Communication","authors":"S. Kondapalli, O. Pochettino, K. Aono, S. Chakrabartty","doi":"10.1109/MWSCAS.2018.8623840","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8623840","url":null,"abstract":"While autonomous and networked vehicles are being designed to navigate under different driving conditions, there is an emerging need for the infrastructure (roadways) to communicate with the vehicles so as to reliably convey current road conditions. Wireless sensors or devices that are embedded inside the infrastructure can facilitate real-time information exchange, however, its design requires a careful trade-offs between different factors such as operational lifetime, communication distance and latency. In this paper, we discuss three particular methods for establishing a radio-frequency communication link within our previously reported framework of infrastructural Internet-of-Things (i-IoT). We propose a figure of merit (FOM) to compare and contrast different topologies of infrastructure-to-vehicle (I2V) communication devices which includes the traditional battery-powered approach, a passive approach that harvests RF energy for its power source and only polls a sensor when power is available, and a hybrid approach that leverages an RF harvesting mechanism to activate a battery-powered sensor. The estimated FOM suggests that a hybrid approach is the most pragmatic for the particular use case of road-condition monitoring.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130442475","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
An Average Inductor Current Sensor with Enhanced Accuracy in DCM for Buck Converters Buck变换器中提高DCM精度的平均电感电流传感器
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8623921
Yongjie Jiang, Sita Asar, A. Fayed
{"title":"An Average Inductor Current Sensor with Enhanced Accuracy in DCM for Buck Converters","authors":"Yongjie Jiang, Sita Asar, A. Fayed","doi":"10.1109/MWSCAS.2018.8623921","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8623921","url":null,"abstract":"This paper presents an average inductor current sensor with enhanced accuracy in DCM operation for buck converters. The proposed sensor employs sample-and-hold (S/H) techniques instead of continuous-time techniques to sense the peak and valley of the current profile in the high-side and low-side power switches, respectively. Using these values, the average inductor current is estimated with high accuracy, since the S/H operation eliminates sensing errors due to the finite bandwidth of the sense amplifiers. To enhance sensing accuracy in DCM, the proposed sensor measures the conduction time and the switching period of the converter, and uses an analog nonlinear function generator to scale the sensed peak current of the high-side power switch. This DCM-scaling produces a more accurate estimation of the average inductor current compared to other S/H techniques. The proposed sensor is implemented within a 2-MHz buck converter in $0.5-{mu } mathrm {m}$ CMOS, where simulation results show the error in the sensed average inductor current is only 2% in both CCM and DCM. In DCM, a corresponding continuous-time sensor has over 42% error, while a S/H sensor without DCM-scaling has over 110% error.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133973346","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
Ultra Low Power Class-AB Voltage Mode Line Driver for Fast Ethernet 用于快速以太网的超低功耗ab类电压模式线路驱动器
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8623924
Simon Buhr, M. Kreissig, F. Protze, F. Ellinger
{"title":"Ultra Low Power Class-AB Voltage Mode Line Driver for Fast Ethernet","authors":"Simon Buhr, M. Kreissig, F. Protze, F. Ellinger","doi":"10.1109/MWSCAS.2018.8623924","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8623924","url":null,"abstract":"A low power CMOS voltage mode line driver for Fast Ethernet has been designed in a 180nm low cost technology from GlobalFoundries. Very low power consumption is achieved by using a voltage mode approach with a low power rail-to-rail operational amplifier (opamp). Using a Class-AB output stage further reduces the power consumption. While transmitting pseudo random data the power consumption is measured to be only 24mW which is to the best of the authors knowledge the lowest power consumption reported to date for such a line driver.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134282997","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
Antenna Design for Magnetic Energy Transmission to Low Frequency RFID Tags in Small Aquaculture Tanks 小型水族箱中磁性能量传输到低频RFID标签的天线设计
2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2018-08-01 DOI: 10.1109/MWSCAS.2018.8623922
Judith Santana Abril, Graciela Santana Sosa, J. Montiel-Nelson
{"title":"Antenna Design for Magnetic Energy Transmission to Low Frequency RFID Tags in Small Aquaculture Tanks","authors":"Judith Santana Abril, Graciela Santana Sosa, J. Montiel-Nelson","doi":"10.1109/MWSCAS.2018.8623922","DOIUrl":"https://doi.org/10.1109/MWSCAS.2018.8623922","url":null,"abstract":"The main objective of the thesis is to develop a radio frequency identification (RFID) system to transmit energy between a tag located on a free-swimming fish in an aquaculture tank and a base station located outside the tank. The RFID system operates at the frequency of 134.2 kHz. In particular, in this thesis, the ad-hoc antenna design and transmission stage of an RFID system operating, optimized for distance and energy efficiency, is designed and developed.","PeriodicalId":365263,"journal":{"name":"2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131742626","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
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