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检索条件"任意字段=Conference on Ph.D Research in Microelectronics and Electronics"

共 834 条记录，以下是231-240 订阅

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A 1.2V Bandgap Reference with an additional 29.6 ppm/°C Temperature Stable Output Current 13

A 1.2V Bandgap Reference with an additional 29.6 ppm/°C Tem...

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13th conference on ph.d. research in microelectronics and electronics (PRIME)

作者： Hanhart, Michael Wunderlich, Ralf Heinen, Stefan Rhein Westfal TH Aachen Chair Integrated Analog Circuits & RF Syst Kopernikusstr 16 D-52074 Aachen Germany

ISBN: (纸本)9781509065080

This paper presents a precise 1.175V voltage reference bandgap circuit with an additional temperature compensated current output for dC-dC switch mode converters. The nominal temperature coefficient (TC) of the bandgap voltage is 13 ppm/degrees C from -40 degrees C to 140 degrees C. With the proposed circuit architecture output voltage deviations as low as +/- 18mV (+/- 3 sigma) from the nominal bandgap voltage are achieved. The reference output current measures 1 mu A with a temperature stability of 29.6 ppm/degrees C. The circuit is designed in a 0.18 mu m HV-CMOS process to operate from a 1.8V supply voltage with a simulated overall current consumption of approximately 50 mu A. The proposed bandgap reference circuit occupies a silicon die area of 0.05mm(2).

关键词： Temperature

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Nonlinear Modeling of Cross-Coupled Regenerative Sampling Oscillators 13

Nonlinear Modeling of Cross-Coupled Regenerative Sampling Os...

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13th conference on ph.d. research in microelectronics and electronics (PRIME)

作者： Ghaleb, Hatem El-Shennawy, Mohammed Joerges, Udo Carta, Corrado Ellinger, Frank Tech Univ Dresden Chair Circuit Design & Network Theory D-01062 Dresden Germany

ISBN: (纸本)9781509065080

This paper presents two approaches to model the startup behavior of cross-coupled oscillators for regenerative sampling applications. The first approach closely models the building blocks and connections of the circuit at the device level, whereas the second approach uses an equivalent model based on the analysis of the differential currents in the circuit to simplify the calculation and obtain a faster solution. The models have been implemented using standard components from the "analogLib" and "ahdlLib" libraries in the CAdENCE design environment, which provides access to familiar powerful tools and simulation setups. Thus, the design time is significantly reduced. The model is extended with an ideal mixer and the results are verified with the down-converted output of a fabricated 145-GHz regenerative oscillator. This work facilitates the study of the startup behavior of oscillators for a wide range of applications without the need for complex mathematical analysis.

关键词： injection-locked oscillators integrated circuit modeling microwave circuits millimeter-wave mm-wave radio frequency sub-terahertz sub-THz wireless communication

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Spin Torque Oscillator Based BFSK Modulation 13

Spin Torque Oscillator Based BFSK Modulation

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13th conference on ph.d. research in microelectronics and electronics (PRIME)

作者： Ma, R. Purbawati, A. Kreissig, M. Protze, F. Ruiz-Calaforra, A. Hem, J. Ebels, U. Ellinger, F. Tech Univ Dresden Chair Circuit Design & Network Theory D-01062 Dresden Germany Univ Grenoble Alpes CEA INAC SPINTEC GNRS SPINTEC F-38000 Grenoble France

ISBN: (纸本)9781509065080

This work presents a spin torque nano-oscillator (STNO) based binary frequency shift keying (BFSK) modulation schema implemented on a printed circuit board (PCB). Maximal input data rate reaches 20 Mbit/s. depending on the STNO used, carrier frequency can range from 1 to 10 GHz. Both dC and AC currents flowing through the STNO can be tuned between 0 to 4 mA. Using one magnetic tunnel junction (MTJ) STNO, a 380 MHz frequency shift around the center frequency 9 GHz was observed, when the modulated current was toggled between 1.06 mA and 1.2 mA at a rate of 20 Mbit/s. The PCB with a size of 50 x 55 mm consumes maximal 130 mA at a 5 V supply. This is the first work demonstrating that the STNOs are applicable for BFSK modulation on the wireless application level.

关键词： Spin Torque Nano Oscillator Binary Frequency Shift Keying Wireless Communication

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Microstrip fed SIW slot antenna for millimeter wireless communication applications

Microstrip fed SIW slot antenna for millimeter wireless comm...

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2017 IEEE International conference on Circuits and Systems, ICCS 2017

作者： Kumar, M. Nanda Shanmuganantham, T. Department of Electronics Engg. Pondicherry University Puducherry India

ISBN: (纸本)9781509064809

In this paper, proposes SIW slot GHz frequency and shape of slot is optimizei asymmetrical 'I'. This frequency is ui communication applications. The proposed ai by using Rogers substrate material with a die 2.2 and substrate height is 0.381 mm. The mici for this design with a input impedance of 50ol provides 4.59GHz impedance bandwidth in b band and this band is perfectly matches wit] values of reflection coefficient, VSWR, g efficiency and radiation efficiency of proposed are -22dB, 1.177, 9.3dBi, 92.35% and 86.2%. © 2017 IEEE.

关键词： Antenna feeders

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Experiment-centric pedagogy - Improving the HBCU engineering student learning experience 125

Experiment-centric pedagogy - Improving the HBCU engineering...

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125th ASEE Annual conference and Exposition

作者： Connor, Kenneth A. Gullie, Kathy Ann Newman, dianna Chouikha, Mohamed F. Kelly, John d. Scott, Craig J. dabipi, Ibibia K. Graves, Corey A. Zhang, Lei Osareh, Ali Reza Albin, Sacharia Geddis, demetris Andrei, Petru Lacy, Fred Majlesein, Hamid R. Eldek, Abdelnasser A. Attia, John Okyere Astatke, Yacob Yang, Shujun Jiang, Li Oni, Ben O. Zein-Sabatto, Saleh United States Gullie Consultant Services United States University at Albany-SUNY United States Department of Electrical and Computer Engineering Howard University United States Department of Electrical and Computer Engineering North Carolina A and T State University United States Clarence M. Mitchell Jr. School of Engineering Morgan State University United States University of Maryland Eastern Shore United States Norfolk State University Engineering Department United States Department of Electrical and Computer Engineering Hampton University United States College of Engineering United States Southern University A and M College United States Department of Electrical and Computer Engineering Jackson State University United States Electrical and Computer Engineering Prairie View A and M University United States United States Department of Electrical Engineering Alabama A and M University Huntsville United States Department of Electrical Engineering Tuskegee University United States Tennessee State University United States

A consortium of 13 Historically Black Colleges and Universities (HBCUs) has been collaborating for more than four years resulting in the implementation of experiment centric pedagogy (ECP) in over forty courses that involve circuits and electronics. ECP is enabled in this project through the use of mobile, inexpensive personal electronic instrumentation;usually digilent's Analog discovery (Ad). ECP allows students with various learning styles to learn at their own pace and in their own environments by providing an alternative path to the acquisition of technical skills and knowledge both in the classroom and outside. Most of the courses addressed have been in the circuits and electronics sequence in electrical and computer engineering programs. Faculty involved in this effort has also used the same approach to support hands-on learning in introductory engineering courses, both focused on general engineering and specifically on introduction to ECE, in courses outside of ECE and in capstone design courses. This program was initiated and funding obtained because the group recognized that integrating hands-on learning is one of the key approaches that has been proven to be effective in improving retention by making the learning experience engaging and motivating for students. Results of internal and external evaluation has shown the introduction of Ad board based ECP to be successful in a variety of instructional settings, instructional methodologies, and with diverse learning styles. This project has benefited from and inspired similar work by faculty at other universities who have been officially and unofficially affiliated with the 13 HBCUs. In this paper we will report on the immediate classroom impact of ECP on the engineering student as well as the long-term systemic experience at institutions both inside and outside the HBCU project. © American Society for Engineering Education, 2018.

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research on reversing current phenomenon of the dual-source driver for SiC BJT

Research on reversing current phenomenon of the dual-source ...

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2017 International Exhibition and conference for Power electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Asia 2017

作者： Qin, Haihong Liu, Qing Zhang, Ying Yu, Junyue Wang, dan Zhao, Chaohui Nanjing University of Aeronautics and Astronautics China Shanghai Electric Machinery College China

ISBN: (纸本)9783800744299

As SiC BJT is a current-controlled device, it becomes a trivial issue to achieve both a low power consumption and competitive switching performance. The dual-source base driver is a popular candidate to achieve these objectives. However, due to capacitor clamping, there is a reversing current flowing through the base resistor at turn-off moment, which increases the power loss. This paper investigates the reasons for reversing current phenomenon and introduces the new control method to prevent it. The proposed gate driver is verified by LTSPICE simulation and experimental results. © VdE VERLAG GMBH, Germany

关键词： Silicon carbide

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Versatile control of multiple morphing surfaces of Micro Air Vehicle with reduced weight and optimized power consumption

Versatile control of multiple morphing surfaces of Micro Air...

引用

International conference on Circuits, Communication, Control and Computing

作者： G.M Kamalakannan Giresh Kumar Singh C.M Ananda (Ph.D scholar) Senior Principal Scientist Centre for Societal Missions and Special Technologies CSIR-National Aerospace Laboratories Bengaluru India Senior Principal Scientist Flight Mechanics and Controls Division CSIR-National Aerospace Laboratories Bengaluru India Head Aerospace Electronics and Space Division CSIR-National Aerospace Laboratories Bengaluru India

ISBN: (纸本)9781538684887

Morphing or shape changing of aircraft, though attractive from aerodynamics point of view, entails additional weight and power penalty and control complexities that pose research challenges. researchers generally agree with the aerodynamic benefits of morphing and propose Shape Memory Alloy (SMA) actuators for controlled morphing. However, the methods discussed in the literature, generally uses computer based software and data acquisition systems that are suitable for ground based operation. This paper presents an in-flight configurable morphing Micro Air Vehicle (MAV) with four SMA actuated morphing surfaces. As a proof of concept, NAL's 300mm MAV airframe was modified to provide deflectable leading edges and trailing edges on both left and right side wing of the MAV. These four morphing surfaces could be actuated independently. The paper also presents the weight reduction methods employed to achieve a weight budget of less than 6g per morphing system. The power optimization using staggered PId-PWM control algorithm has reduced the peak battery current drawn by four SMA actuators (apparently operating together) to that of a single SMA. Typical rate of 4.4°/s for actuating the morphing segment and 2.6°/s for deactivating the same have been achieved at a control accuracy of ±0.5°.

关键词： Actuators Sensors Pulse width modulation Temperature measurement Aerospace electronics Wires Power demand

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design of a LTE-Receiver Using a design Methodology for Multiphysical RF Systems 14

Design of a LTE-Receiver Using a Design Methodology for Mult...

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13th conference on ph.d. research in microelectronics and electronics (PRIME) / 14th International conference on Synthesis, Modeling, Analysis and Simulation Methods and Application to Circuit design (SMACd)

作者： Nowak, Jacek Krausse, dominik Mona, Mahmoud Sommer, Ralf Stegner, Johannes Ilmenau Univ Technol Ilmenau Germany

ISBN: (纸本)9781509050529

This paper deals with the design of a receiver for LTE band 20 consisting of microelectronic and MEMS-containing function blocks. It shows how multiphysical RF circuits can be considered in one design environment like Cadence Virtuoso. Finally, the simulation tool was extended by suitable models for used MEMS containing design parameters that are important for an electronics engineer. This unifies the design task and facilitates the evaluation of an implementation with and without MEMS by considering the entire receiver chain.

关键词： Micromechanical devices Resonators Integrated circuit modeling Radio frequency Receivers Resonant frequency Consumer electronics

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'Professor of professors' yilmaz tokad: I have always loved academic life: An interview by erol sezer, ph.d

ICECS 2017 - 24th IEEE International Conference on Electroni...

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ICECS 2017 - 24th IEEE International conference on electronics, Circuits and Systems 2018年 2018-January卷 460-464页

作者： Sezer, Erol Electrical and Electronics Engineering Yaşar University Izmir Turkey

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Substrate integrated waveguide cavity backed inverted T-shaped slot antenna for 60GHz applications 4

Substrate integrated waveguide cavity backed inverted T-shap...

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4th International conference on Advanced Computing and Communication Systems, ICACCS 2017

作者： Kumar, M. Nanda Shanmuganantham, T. Department of Electronics Engg. Pondicherry University Puducherry India

ISBN: (纸本)9781509045594

Here represented SIW cavity backed inverted T-shaped slot antenna which is implemented with help of Rogers RT/duriod 5880 substrate with dielectric constant of 2.2, height of substrate is 0.02 inches and it is implemented for 60GHz applications. Observed the results like reflection coefficient, VSWR, gain and radiation patterns. This structure will provide 3.713 GHz bandwidth with respect to reflection coefficient and VSWR (2:1) in between 57-64 GHz frequency range, resonant frequency is 60GHz and preserves 53.42% impedance bandwidth. At 60GHz, the gain is 6.33 dBi, VSWR value is 1.088, radiation and total efficiency are 95.382% and 74.382%. © 2017 IEEE.

关键词： Substrate integrated waveguides

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