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The conducted EMI simulation plays an important part in the SMPS in the product design. The analysis of common mode noise is much more complex than differential mode noise. The CE simulation accuracy depends on the accuracy of CM mode noise. CM noises are determined by the electric coupling between the voltage jump point and the ground. Traditional the CM models of the electric coupling between the...
Power supply noise is a serious issue for advanced CMOS LSIs and systems, since the performance of LSI chip is becoming more sensitive to power supply fluctuation under the lower power supply voltage. Because power supply noises are strongly related to the anti-resonance peak frequency in the total power distribution network (PDN), suppressing the anti-resonance peak is one of the most important design...
A scalable HEMT noise model has been developed, based on a lumped parasitic network extracted analytically through full-wave electromagnetic simulations and a scalable black-box representation of the intrinsic noise and AC response of the device. The analytical extraction of the lumped parasitic network is extensively explained, as well as the intrinsic model identification. The model prediction capability,...
The design of a heterogeneous smart system is a major and multidisciplinary challenge. The next generation smart systems will include analog, digital and MEMS components described using different languages relying on parametric models at different abstraction level. The SMArt system Co-design (SMAC) FP7 ICT project aim is the overcome all the issues related to the mixed design of a smart system. Inside...
This paper investigates the capability of Pospieszalski-type and Pucel-type noise model implementations to predict the truly nonlinear noise behavior of GaN HEMT devices. The bias-dependence of the noise model parameters is introduced for both models. It is then addressed how the difference in model topology could yield different noise performance in the nonlinear regime. Also dispersion is taken...
This paper presents a bio-inspired methodology for improving glucose sensor performance for control of diabetes through modelling of the beta-cells of the pancreas. Specifically we utilise the noise shaping capability of gap junction coupling which is capable of synchronising β-cell behaviour to a varying glucose sensor input and reduce random noise. We show that through gap junction coupling of up...
A scalable HEMT noise model has been developed, based on a lumped parasitic network extracted analytically through full-wave electromagnetic simulations and a scalable black-box representation of the intrinsic noise and AC response of the device. The analytical extraction of the lumped parasitic network is extensively explained, as well as the intrinsic model identification. The model prediction capability,...
This paper presents a comprehensive and robust strategy for the estimation of battery model parameters from noise corrupted data. The deficiencies of the existing methods for parameter estimation are studied and the proposed parameter estimation strategy improves on earlier methods by working optimally for low as well as high discharge currents, providing accurate estimates even under high levels...
This paper investigates the capability of Pospieszalski-type and Pucel-type noise model implementations to predict the truly nonlinear noise behavior of GaN HEMT devices. The bias-dependence of the noise model parameters is introduced for both models. It is then addressed how the difference in model topology could yield different noise performance in the nonlinear regime. Also dispersion is taken...
The construction of black-box macromodels, either from frequency responses or via model order reduction, has become a standard practice in Computer-Aided Design flows of digital, analog, mixed-signal and radio-frequency systems. In order to be proficiently used, such macromodels need to be synthesized into equivalent circuits that are compatible with common circuit solvers. In this work, we propose...
In this paper, a substrate noise suppression method using P+ contact array and grid ground plane is proposed, which yield excellent noise suppression below −60 dB in extremely wide frequency range from DC up to 50 GHz. P+ contact array suppresses the low-frequency noise while the grid ground suppresses the high-frequency noise. Accurate circuit models are developed by simple extraction. The noise...
This paper provides an overview of translational or com-mutated circuits and their role in RF receivers. Insights are offered into the frequency translation of impedances, their modeling, and their application in input matching, blocker rejection, and channel selection. A new front end is also described that rejects blockers at the third harmonic of the local oscillator frequency.
A 3D-integrated test vehicle that emulates noise generation and propagation in a heterogeneous integrated system has been developed. In-stack waveform capturers are embedded on each tier which captured the generation and propagation of noise. A consistent analytical model is created and analysis using that model has allowed us to develop a design strategy for the power delivery network to attenuate...
This letter presents the design and fabrication of a 340GHz sub-harmonic mixer (SHM), which mainly includes a pair of anti-parallel planar Schottky diodes fixed onto a quartz-based microstrip circuit chip. At room temperature, the mixer performances were measured in 313GHz-360GHz. Our recent results show that the signal side band (SSB) conversion losses were from 9.78 dB to 12.74dB, and the double...
Power supply noise has been becoming critical in advanced CMOS digital systems, because power supply noise induces false logic operation and instability. Especially, anti-resonance peaks in power distribution network (PDN) due to the chip-package interaction induce the unwanted power supply fluctuation. In this paper, power supply noises and total impedances of power distribution network (PDN) for...
In the pursuit of an uncooled THz sensor, we address the specific modeling and optimization method for micro-machined transistors for the implementation of antenna-coupled MOSFET bolometers. We discuss the degrees of freedom for maximizing the device's SNR, outlining also the trade-offs in relation to the requirements of an integrated read-out circuit. The methodology was applied to novel antenna-coupled...
For the radiated EMI technology of smart grid equipments, the modeling and features on the interference noise are analyzed in this paper. On the basis of radiated EMI mechanism analysis on the electronic equipments, considering of the special features of smart grid, the chip interference mode and structure interference model are established according to the characteristics of radiated electromagnetic...
Mixed signal communication networks are used in electromagnetically noisy environment to establish a stable link between local systems. The ability to predict their EMC compliance to standard immunity tests in design phase is required. The paper focuses on an AMS modeling procedure allowing to describe the CAN bus behaviour when affected by disturbances. The network is simulated combining mixed-signal...
With the progress in VLSI technology increase in circuit density is obvious. In present integrated circuits, electrical power is distributed to the large number of components of the chip over a network of on chip conductors. The systematic arrangement of the power distribution network (PDN) is commonly termed as power grid. The challenge of efficient PDN design escalates to a greater extent especially...
▸ Today's high-speed I/O interfaces demand extensive modeling and simulation to: ▸ Design optimal equalization to compensate channel loss ▸ Compare different clocking schemes ▸ Verify functionalities of digital calibration/adaptation loops ▸ For effective system-level performance analysis, it is important to understand the key modeling requirements for each of the link components ▸ And to use an efficient...
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