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- Particle Swarm Optimisation (5)
- Printed Circuit Boards (5)
- Capacitors (4)
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- Switching Convertors (4)
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Articles 1 - 30 of 142
Full-Text Articles in Engineering
Reliability Measurement Of Mass Storage System For Onboard Instrumentation, Minsu Choi, Nohpill Park, Vincenzo Piuri, Fabrizio Lombardi
Reliability Measurement Of Mass Storage System For Onboard Instrumentation, Minsu Choi, Nohpill Park, Vincenzo Piuri, Fabrizio Lombardi
Electrical and Computer Engineering Faculty Research & Creative Works
Advances in spaceborne vehicular technology have made possible the long-life duration of the mission in harsh cosmic environments. Reliability and data integrity are the commonly emphasized requirements of spaceborne solid-state mass storage systems, because faults due to the harsh cosmic environments, such as extreme radiation, can be experienced throughout the mission. Acceptable dependability for these instruments has been achieved by using redundancy and repair. Reconfiguration (repair) of memory arrays using spare memory lines is the most common technique for reliability enhancement of memories with faults. Faulty cells in memory arrays are known to show spatial locality. This physical phenomenon is …
The Mixed-Form Fast Multipole Algorithm For Broadband Electromagnetic Simulations, L. (Lijun) J. Jiang, W. C. Chew
The Mixed-Form Fast Multipole Algorithm For Broadband Electromagnetic Simulations, L. (Lijun) J. Jiang, W. C. Chew
Electrical and Computer Engineering Faculty Research & Creative Works
No abstract provided.
The General Variational Formulas For Capacitance Parameter Extraction, W. C. Chew, L. (Lijun) J. Jiang
The General Variational Formulas For Capacitance Parameter Extraction, W. C. Chew, L. (Lijun) J. Jiang
Electrical and Computer Engineering Faculty Research & Creative Works
To obtain second order accuracy using the first order data for the capacitance parameter extraction, a set of new generalized variational formulas are presented in this paper. They are complete since they are valid not only for self-capacitances, but also for mutual capacitances. A more general variational formula is derived to account for the asymmetrical elastance matrix case. By these novel formulas the computational accuracy can be significantly improved compared to the conventional direct capacitance extraction method. © 2005 IEEE.
Crosstalk Analysis By Fast Computational Algorithms, Z. G. Qian, J. Xiong, L. Sun, I. T. Chiang, W. C. Chew, L. (Lijun) J. Jiang, Y. H. Chu
Crosstalk Analysis By Fast Computational Algorithms, Z. G. Qian, J. Xiong, L. Sun, I. T. Chiang, W. C. Chew, L. (Lijun) J. Jiang, Y. H. Chu
Electrical and Computer Engineering Faculty Research & Creative Works
In this paper, we will present the use of low frequency fast algorithms for crosstalk analysis. Some criss-cross line structures are studied and time domain signals are demonstrated to ascertain crosstalk effect. ©2005 IEEE.
A Mixed-Form Fast Multipole Algorithm, Li (Lijun) Jun Jiang, Weng Cho Chew
A Mixed-Form Fast Multipole Algorithm, Li (Lijun) Jun Jiang, Weng Cho Chew
Electrical and Computer Engineering Faculty Research & Creative Works
The fast multipole algorithm manifests in two very different forms at low frequencies and at mid frequencies. Each can operate in their respective regimes, but are not tenable in the other regimes. The paper reports on a way to factorize the Green's function for fast algorithm using a mixed form. The low-frequency fast multipole algorithm (LF-FMA) will be used at low frequencies or the long-wavelength regime, and the multilevel fast multipole algorithm (MLFMA) will be used for the mid frequencies or the shorter-wavelength regime. For object modeling where both long-wavelength and wave physics are important, we propose a mixed-form fast …
A Novel Method For Determination Of Dielectric Properties Of Materials Using A Combined Embedded Modulated Scattering And Near-Field Microwave Techniques-Part Ii: Dielectric Property Recalculation, R. Zoughi, Dana Hughes
A Novel Method For Determination Of Dielectric Properties Of Materials Using A Combined Embedded Modulated Scattering And Near-Field Microwave Techniques-Part Ii: Dielectric Property Recalculation, R. Zoughi, Dana Hughes
Electrical and Computer Engineering Faculty Research & Creative Works
The use of combined embedded modulated scattering technique and near-field microwave nondestructive testing techniques is investigated as a novel method for evaluating the dielectric properties of a material. The forward formulation for determining the reflection coefficient at the aperture of a waveguide radiating into a dielectric half-space in which a PIN diode-loaded dipole (i.e., modulated scattering technique probe) is embedded was presented in Part I of this paper. Here, in Part II, the recalculation of the dielectric properties, using the results of the forward model, is presented along with some associated experimental results.
A Novel Method For Determination Of Dielectric Properties Of Materials Using A Combined Embedded Modulated Scattering And Near-Field Microwave Techniques-Part I: Forward Model, Dana M. Hughes, R. Zoughi
A Novel Method For Determination Of Dielectric Properties Of Materials Using A Combined Embedded Modulated Scattering And Near-Field Microwave Techniques-Part I: Forward Model, Dana M. Hughes, R. Zoughi
Electrical and Computer Engineering Faculty Research & Creative Works
The use of combined embedded modulated scattering technique and near-field microwave nondestructive testing techniques is investigated as a novel method for evaluating the dielectric properties of a material. The forward formulation for determining the reflection coefficient at the aperture of a waveguide radiating into a dielectric half-space in which a PIN diode-loaded dipole (i.e., modulated scattering technique probe) is embedded is presented. This formulation is based upon calculating the near-field coupling between the waveguide and the dipole as a mutual impedance.
Solving Low Frequency Electromagnetic Problems With Fast Solvers, W. C. Chew, L. (Lijun) J. Jiang, Y. H. Chu, Y. A. Liu, M. K. Li, Z. G. Qian, J. Xiong, L. Sun
Solving Low Frequency Electromagnetic Problems With Fast Solvers, W. C. Chew, L. (Lijun) J. Jiang, Y. H. Chu, Y. A. Liu, M. K. Li, Z. G. Qian, J. Xiong, L. Sun
Electrical and Computer Engineering Faculty Research & Creative Works
No abstract provided.
Modeling Of Capacitor Impedance In Switching Converters, Jonathan W. Kimball, Philip T. Krein, Kevin R. Cahill
Modeling Of Capacitor Impedance In Switching Converters, Jonathan W. Kimball, Philip T. Krein, Kevin R. Cahill
Electrical and Computer Engineering Faculty Research & Creative Works
Switched capacitor (SC) converters are gaining acceptance as alternatives to traditional, inductor-based switching power converters. Proper design of SC converters requires an understanding of all loss sources and their impacts on circuit operation. In the present work, an equivalent resistance method is developed for analysis, and equivalent resistance formulae are presented for various modes of operation. Quasiresonant converters are explored and compared to standard SC converters. Comparisons to inductor-based switching power converters are made. A number of capacitor technologies are evaluated and compared for applications to both SC converters and inductor-based converters. The resulting model can be used to accurately …
A Grasp For Unitary Space-Time Codes, Adam Panagos, Kurt Louis Kosbar
A Grasp For Unitary Space-Time Codes, Adam Panagos, Kurt Louis Kosbar
Electrical and Computer Engineering Faculty Research & Creative Works
Unitary space-time codes perform well at high signal-to-noise ratios on MIMO channels even when the propagation coefficients between transmitter and receiver are unknown. One method of constructing unitary space-time constellations uses a random search to find signal constellations that minimize the maximum pairwise correlation between transmitted signals. The work presented here uses a greedy randomized adaptive search procedure (GRASP) for finding good unitary space-time code constellations. Simulation results show that, on average, this technique finds codes with better correlation properties than the random search method. This new search procedure was also used to find signal constellations with better correlation properties …
Control Interaction Mitigation For The Unified Power Flow Controller, Liangying Dong, Mariesa Crow
Control Interaction Mitigation For The Unified Power Flow Controller, Liangying Dong, Mariesa Crow
Electrical and Computer Engineering Faculty Research & Creative Works
This paper establishes that dynamic interactions can occur between multiple UPFCs installed in power systems. The existence of the dynamic interactions can adversely affect the overall system performance and lead to system instability. This paper identifies two types of interactions among FACTS controllers: low frequency inter-area interaction and high frequency controller interactions. Several control approaches are proposed to mitigate these interactions. The IEEE New England 10-machine 39-bus system is used to demonstrate the existence of the control interactions and illustrate the effectiveness of the proposed interaction mitigation controls.
Application Of Transmission Line Models To Backpanel Plated Through-Hole Via Design, Shaowei Deng, Todd H. Hubing, James L. Drewniak, Jun Fan, James L. Knighten, Norman W. Smith
Application Of Transmission Line Models To Backpanel Plated Through-Hole Via Design, Shaowei Deng, Todd H. Hubing, James L. Drewniak, Jun Fan, James L. Knighten, Norman W. Smith
Electrical and Computer Engineering Faculty Research & Creative Works
This paper introduces an approach of using a plated through-hole (PTH) via transmission-line model in the design of a thick printed circuit board, such as a backpanel. Full wave FEM modeling of a section of backpanel containing a differential via pair was compared with a transmission model. Computed values of the differential transmission loss agreed within an acceptable range for engineering studies, yet the transmission line model results required less than 2% of the computation time that the full wave model required. Effects of via spacing, via diameter and trace thickness were also examined.
Upfc Control Employing Gradient Descent Search, William M. Siever, Radha P. Kalyani, Mariesa Crow, Daniel R. Tauritz
Upfc Control Employing Gradient Descent Search, William M. Siever, Radha P. Kalyani, Mariesa Crow, Daniel R. Tauritz
Electrical and Computer Engineering Faculty Research & Creative Works
Increasing demand coupled with limitations on new construction indicate that existing power transmission must be better controlled in order to continue reliable operation. Recent advances in FACTS devices provide a mechanism to better control power flow on the transmission network. One particular device, the unified power flow controller (UPFC), holds the most promise for maintaining operation even when the system has suffered partial failure (either naturally occurring, due to human error, or a malicious attack). In addition to the capital cost, the primary obstacles to widespread UPFC use are the combined problems of selecting the most cost effective locations for …
Qca-Based Majority Gate Design Under Radius Of Effect-Induced Faults, Zachary D. Patitz, Nohpill Park, Minsu Choi, Fred J. Meyer
Qca-Based Majority Gate Design Under Radius Of Effect-Induced Faults, Zachary D. Patitz, Nohpill Park, Minsu Choi, Fred J. Meyer
Electrical and Computer Engineering Faculty Research & Creative Works
This paper presents reliable QCA cell structures for designing single clock-controlled majority gates with a tolerance to radius of effect-induced faults, for use as a basic building component for carry look-ahead adder. Realizable quantum computing is still well in the future due to the complexity of the quantum mechanics that govern them. In this regard, QCA-based system design is a challenging task since each cell''s state must interact with all the cells that are in its energy-effective range in its clocking zone, referred to as its radius of effect. This paper proposes a design approach for majority gates to overcome …
Voltage Regulator Module Noise Analysis For High-Volume Server Applications, Erdem Matoglu, N. Pham, Giuseppe Selli, Mauro Lai, Samuel R. Connor, James L. Drewniak, Bruce Archambeault, D. Wang, D. Kuhn, R. Hashemi, Daniel N. De Araujo, M. Cases, B. Wilkie, B. Herrman, P. Patel
Voltage Regulator Module Noise Analysis For High-Volume Server Applications, Erdem Matoglu, N. Pham, Giuseppe Selli, Mauro Lai, Samuel R. Connor, James L. Drewniak, Bruce Archambeault, D. Wang, D. Kuhn, R. Hashemi, Daniel N. De Araujo, M. Cases, B. Wilkie, B. Herrman, P. Patel
Electrical and Computer Engineering Faculty Research & Creative Works
This paper presents a methodology to analyze voltage regulator module (VRM) noise coupling problems in high-volume server applications. The technique is applied on a real engineering design. The comprehensive model includes irregular power shapes, decoupling capacitors, and dielectric and conductive loss. Irregular shaped power plane modeling is cross-checked with four separate methods to demonstrate accuracy.
Complex Power Distribution Network Investigation Using Spice Based Extraction From First Principle Formulations, Giuseppe Selli, James L. Drewniak, Richard E. Dubroff, Jun Fan, James L. Knighten, Norman W. Smith, Dean Mccoy, Bruce Archambeault, Stefano Grivet-Talocia, Flavio G. Canavero
Complex Power Distribution Network Investigation Using Spice Based Extraction From First Principle Formulations, Giuseppe Selli, James L. Drewniak, Richard E. Dubroff, Jun Fan, James L. Knighten, Norman W. Smith, Dean Mccoy, Bruce Archambeault, Stefano Grivet-Talocia, Flavio G. Canavero
Electrical and Computer Engineering Faculty Research & Creative Works
The modeling and the analysis of the power distribution networks (PDN) within multi-layer printed circuit board is crucial for the investigation of the performance of PCB systems. Carrying out such analyses in SPICE based tools has the advantage of being faster than the corresponding full-wave modeling and it allows obtaining both frequency and time domain results.
Evaluation Of Microwave Reflection Properties Of Cyclically Soaked Mortar Based On A Semiempirical Electromagnetic Model, Shanup Peer, K. E. Kurtis, R. Zoughi
Evaluation Of Microwave Reflection Properties Of Cyclically Soaked Mortar Based On A Semiempirical Electromagnetic Model, Shanup Peer, K. E. Kurtis, R. Zoughi
Electrical and Computer Engineering Faculty Research & Creative Works
Detection of chloride ingress and evaluation of its distribution and temporal movement in reinforced concrete structures is an important practical issue. Steel reinforcing bars embedded in good quality concrete are normally protected from corrosion. However, the presence of a sufficient concentration of free chloride ions in the region of the reinforcing steel can initiate the process of corrosion. Therefore, it is important to be able to detect ingress of chloride ions and their distribution in cement-based materials. Moreover, it is important to obtain this information nondestructively. In recent years, near-field microwave nondestructive evaluation methods, using open-ended rectangular waveguide probes, have …
Machine Design Considerations For The Future Energy Challenge, Jonathan W. Kimball, Marco Amrhein
Machine Design Considerations For The Future Energy Challenge, Jonathan W. Kimball, Marco Amrhein
Electrical and Computer Engineering Faculty Research & Creative Works
Motors consume a significant fraction of electricity in the United States and in the world. As part of the International Future Energy Challenge, student teams are endeavoring to improve the efficiency of fractional-horsepower machines. The present work summarizes the motor design and construction process for a 500 W prototype induction machine targeting efficiency above 80%. Analytical and finite-element results are shown.
Review Of Digital Control Techniques For Automotive Dc-Dc Converters, Dwaraka S. Padimiti, Mehdi Ferdowsi
Review Of Digital Control Techniques For Automotive Dc-Dc Converters, Dwaraka S. Padimiti, Mehdi Ferdowsi
Electrical and Computer Engineering Faculty Research & Creative Works
Electric and hybrid electric vehicles need a power plant that includes dc-dc converters. While using these converters, their control plays an important role in the overall performance of the vehicle. Due to their several drawbacks including poor communications, analog control schemes are not suitable for the automotive industry, whereas digital control methods successfully meet the demands. Various types of digital control techniques for dc-dc converters are studied and classified in this paper. The drawbacks and advantages of each method are described.
Review Of Multiple Input Dc-Dc Converters For Electric And Hybrid Vehicles, Krishna P. Yalamanchili, Mehdi Ferdowsi
Review Of Multiple Input Dc-Dc Converters For Electric And Hybrid Vehicles, Krishna P. Yalamanchili, Mehdi Ferdowsi
Electrical and Computer Engineering Faculty Research & Creative Works
Batteries, ultra capacitors, fuel cells, and solar arrays are widely used in electric and hybrid vehicles (EVs/HVs) as an electric power source or an energy storage unit. In the structure of the electric power system of modern EVs/HVs, more than one of these units may be employed to improve the performance and efficiency; hence utilization of a multi-input DC-DC converter is inevitable to obtain a regulated bus DC voltage. In this paper, a review of multiple input DC-DC power electronic converters (MI-PEC) devoted to combine the power flow from several on-board energy sources of an EV/HV is presented. Several multi-input …
Engineering Of Composite Media For Shields At Microwave Frequencies, Marina Koledintseva, Poorna Chander Ravva, Richard E. Dubroff, James L. Drewniak, Konstantin Rozanov, Bruce Archambeault
Engineering Of Composite Media For Shields At Microwave Frequencies, Marina Koledintseva, Poorna Chander Ravva, Richard E. Dubroff, James L. Drewniak, Konstantin Rozanov, Bruce Archambeault
Electrical and Computer Engineering Faculty Research & Creative Works
Analytical and numerical modeling of composites with an isotropic dielectric base and multiphase conducting inclusions for the development of wideband microwave shields is considered. The model uses Maxwell Garnett formalism for multiphase mixtures. Such composites are required in many engineering applications, including electromagnetic compatibility.
A Hybrid Approach To Decrease Port Influence In Transmission Line Characterization, Jianmin Zhang, David Pommerenke, James L. Drewniak, Richard E. Dubroff, Zhiping Yang, Wheling Cheng, John Fisher, Sergio Camerlo
A Hybrid Approach To Decrease Port Influence In Transmission Line Characterization, Jianmin Zhang, David Pommerenke, James L. Drewniak, Richard E. Dubroff, Zhiping Yang, Wheling Cheng, John Fisher, Sergio Camerlo
Electrical and Computer Engineering Faculty Research & Creative Works
Characterization and models for multi-gigabit signaling is an important issue in modern digital system. A good physical based model relies on a precise characterization of the test board. Typically, the characterization of the test board is associated with scattering matrix parameter measurement, which can be done with a VNA (Vector Network Analyzer) in the frequency-domain or a TDR (Time Domain Reflectometer) in the time-domain. The commonly used launch techniques on PCBs (Printed Circuit Boards) associated with the VNA or TDR measurement in the microwave frequency range use SMA or 3.5 mm connectors, in edge-launch or vertical-launch fashions. The transition between …
Microwave And Millimeter Wave Imaging Of The Space Shuttle External Fuel Tank Spray On Foam Insulation (Sofi) Using Synthetic Aperture Focusing Techniques (Saft), Joseph Toby Case, J. Robbins, Sergey Kharkovsky, Frank L. Hepburn, R. Zoughi
Microwave And Millimeter Wave Imaging Of The Space Shuttle External Fuel Tank Spray On Foam Insulation (Sofi) Using Synthetic Aperture Focusing Techniques (Saft), Joseph Toby Case, J. Robbins, Sergey Kharkovsky, Frank L. Hepburn, R. Zoughi
Electrical and Computer Engineering Faculty Research & Creative Works
The Space Shuttle Columbia's catastrophic failure is thought to have been caused by a dislodged piece of external tank spray on foam insulation (SOFI) striking the left wing of the orbiter causing significant damage to some of the reinforced carbon/carbon leading edge wing panels. Microwave and millimeter wave nondestructive evaluation methods have shown great potential for inspecting SOFI for the purpose of detecting anomalies such as small air voids that may cause separation of the SOFI from the external tank during a launch. These methods are capable of producing relatively high-resolution images of the interior of SOFI particularly when advanced …
Power Integrity Investigation Of Bga Footprints By Means Of The Segmentation Method, Giuseppe Selli, James L. Drewniak, Richard E. Dubroff, Jun Fan, James L. Knighten, Norman W. Smith, Dean Mccoy, Bruce Archambeault
Power Integrity Investigation Of Bga Footprints By Means Of The Segmentation Method, Giuseppe Selli, James L. Drewniak, Richard E. Dubroff, Jun Fan, James L. Knighten, Norman W. Smith, Dean Mccoy, Bruce Archambeault
Electrical and Computer Engineering Faculty Research & Creative Works
The engineering of the power delivery network is becoming a fundamental issue in the design of high speed digital systems on PCB's. In fact, providing the required power to the different IC's at the specified noisefree voltage levels allows a correct functioning of the overall PCB systems. More over, the ongoing trend of replacing active devices with peripherally located I/O and PWR/GND pins with areally located I/O and PWR/GND pins (BGA packaged) increases the complexity of the models, when power delivery issues need to be studied in a larger contest, such as the overall PCB's. The employment of the powerful, …
Validation Of Circuit Extraction Procedure By Means Of Frequency And Time Domain Measurement, Giulio Antonini, Antonio Ciccomancini Scogna, Antonio Orlandi, Vittorio Ricchiuti, Giuseppe Selli, Shaofeng Luan, James L. Drewniak
Validation Of Circuit Extraction Procedure By Means Of Frequency And Time Domain Measurement, Giulio Antonini, Antonio Ciccomancini Scogna, Antonio Orlandi, Vittorio Ricchiuti, Giuseppe Selli, Shaofeng Luan, James L. Drewniak
Electrical and Computer Engineering Faculty Research & Creative Works
Aim of this paper is the validation in both frequency and time domain of the procedure to extract fully H-Spice compatible equivalent circuits of structures on printed circuit boards. The procedure is initiated by standard measurement of scattering parameters between 40MHz to 20GH. After the extraction of the equivalent circuit, the computed scattering parameters are compared with those measured. The same equivalent circuit is also used for transient analysis in order to compare TDR measurement and eye-pattern to a pseudo-random bit sequence with those coming from the simulations.
A Three-Dimensional Fdtd Subgridding Method With Separate Spatial And Temporal Subgridding Interfaces, Kai Xiao, David Pommerenke, James L. Drewniak
A Three-Dimensional Fdtd Subgridding Method With Separate Spatial And Temporal Subgridding Interfaces, Kai Xiao, David Pommerenke, James L. Drewniak
Electrical and Computer Engineering Faculty Research & Creative Works
The idea of separating the spatial and temporal subgridding interfaces is introduced in this paper. Based on this idea, the spatial and temporal subgridding algorithms can be developed and analyzed separately. The spatial algorithm was given in the previous paper. In this paper, the temporal subgridding algorithm is described and the stability is illustrated by the analytical formulation of a one-dimensional model. An FDTD code that combines the spatial and temporal subgridding algorithms is implemented. Numerical test models are calculated to show the stability and accuracy of the proposed method.
Comparison Of Near-Field Millimeter-Wave Probes For Detecting Corrosion Precursor Pitting Under Paint, Mohammad Tayeb Ahmad Ghasr, Sergey Kharkovsky, R. Zoughi, Russell A. Austin
Comparison Of Near-Field Millimeter-Wave Probes For Detecting Corrosion Precursor Pitting Under Paint, Mohammad Tayeb Ahmad Ghasr, Sergey Kharkovsky, R. Zoughi, Russell A. Austin
Electrical and Computer Engineering Faculty Research & Creative Works
Aircraft structural components such as wings and fuselages are constantly exposed to harsh environments, which make them susceptible to corrosion initiation and growth. To complicate matters, corrosion is normally hidden under paint and primer and cannot be visually detected until significant corrosion has occurred, causing the paint to blister. Corrosion of this type is usually preceded by the presence of corrosion precursor pitting. Hence, early detection of pitting is a critical issue in the maintenance of an aircraft and its structural components. Near-field microwave nondestructive testing techniques have been successfully used for detection of corrosion under paint, including very small …
Determination Of High Frequency Package Currents From Near-Field Scan Data, Xiaopeng Dong, Shaowei Deng, Daryl G. Beetner, Todd H. Hubing, Thomas Van Doren
Determination Of High Frequency Package Currents From Near-Field Scan Data, Xiaopeng Dong, Shaowei Deng, Daryl G. Beetner, Todd H. Hubing, Thomas Van Doren
Electrical and Computer Engineering Faculty Research & Creative Works
Integrated circuits (ICs) are often a significant source of radiated energy from electronic systems. Near-field magnetic scanning is an effective tool for measuring the current distribution in IC packages and investigating chiplevel EMI problems. This paper discusses analysis of near-magnetic field scan data using tangential and normal field measurements. Results show that combining near-field scan results from probes with multiple orientations is an effective way to identify the current paths in IC packages.
Toward A More Robust And Accurate Cem Fast Integral Equation Solver For Ic Applications, Weng Cho Chew, Li (Lijun) Jun Jiang, Yun Hui Chu, Gong Li Wang, I. Ting Chiang, Yuancheng Christopher Pan, Jun Sheng Zhao
Toward A More Robust And Accurate Cem Fast Integral Equation Solver For Ic Applications, Weng Cho Chew, Li (Lijun) Jun Jiang, Yun Hui Chu, Gong Li Wang, I. Ting Chiang, Yuancheng Christopher Pan, Jun Sheng Zhao
Electrical and Computer Engineering Faculty Research & Creative Works
We review recent advances in fast algorithms for fast integral equation solvers that are useful for IC applications. We review fast solvers for Laplace's equation, which is about 10 times faster than the conventional fast multipole method. Then we review the physics of low-frequency electromagnetics, and the relevant low-frequency method of moments. We describe a fast solver that allows us to solve over one million unknowns on a workstation recently. In addition, we demonstrate the applications of these fast integral equation solvers to the lithography problem. In addition, we propose a scheme whereby we first characterize blocks of linear circuits …
Neural Network Detection And Identification Of Electronic Devices Based On Their Unintended Emissions, Haixiao Weng, Xiaopeng Dong, Xiao Hu, Daryl G. Beetner, Todd H. Hubing, Donald C. Wunsch
Neural Network Detection And Identification Of Electronic Devices Based On Their Unintended Emissions, Haixiao Weng, Xiaopeng Dong, Xiao Hu, Daryl G. Beetner, Todd H. Hubing, Donald C. Wunsch
Electrical and Computer Engineering Faculty Research & Creative Works
Electromagnetic emissions were measured from several radio receivers to demonstrate the possibility of detecting and identifying these devices based on their unintended emissions. Radiated fields from the different radio receivers have unique characteristics that can be used to identify these devices by analyzing time-frequency plots of measured radiation. A neural network was also developed for automated device detection.