The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a simple simplification method to design a multistage amplifier. The simplification procedure is based on a defined criterion which mainly related to ignoring negligible terms. In order to verify the validity and accuracy of the exploited method, a complex four‐stage CMOS amplifier is considered. Simplified transfer function and circuit simulator output are compared. According...
In this paper, we have investigated the delay optimization using repeater insertion in folded graphene nanoribbon (FGNR) interconnect systems for different nanometer technology nodes. The mean free path is modeled as a function of GNR width and Fermi energy. The RLC equivalent circuit is modeled for analyzing delay and power for global interconnects. The performance of FGNR is compared to that of...
In this article, characteristic modes for metallic‐dielectric composite structures (MDCS) are explored for fast and accurate analysis of scattering from large antenna arrays. Specifically, a generalized eigenvalue equation is formulated from a method of moments (MoM) impedance matrix of the electric field integral equation and Poggio, Miller, Chang, Harrington, Wu, and Tsai formulation. Modal currents...
The expansion in the Internet of Things (IoT) has led to a shift towards smart technologies. IoT focuses on integrating networks to facilitate smooth services to humans. The interface between the mobility patterns and the routing protocols is considered to increase the performance of the network. However, incorporating security in the IoT network has been a major issue that continues to nurture with...
The LC circuit with a nonlinear capacitor is analyzed using the symplectic conservative perturbation method based on the symplectic matrix. By treating the electric charge and the flux linkage as dual variables, the LC circuit system can be transformed into a Hamiltonian system. Then we solve the nonlinear Hamiltonian matrix equation by the perturbation method. The Hamiltonian matrix can be cast into...
In this paper, we carry out the calculation of eigenvalues including cutoff wavenumbers and propagation constants in rectangular waveguides filled with inhomogeneous double‐negative (DNG) dielectrics whose permittivity varies along one transverse direction by using a semianalytical approach. Eigenequations for waveguides containing arbitrary continuously or discontinuously varying dielectrics are...
In the current work, we consider the nonlinear one‐dimensional stochastic Sine‐Gordon equation with appropriate initial and boundary conditions. The main goal of this work is presenting a numerical scheme based on radial basis functions (RBFs) and finite difference method to provide the approximate solution of mentioned equation. For approximating the solution, finite difference idea is used to overcome...
As a multigate device, the multiple‐state electrostatically formed nanowire transistor (MSET) exhibits a rather complex characteristic on account of the coupling between each of its two adjacent terminals. The MSET has shown promise across a steadily growing range of applications and integrated circuit components. However, an analytical model of the MSET has not been formulated. The objective of this...
The total field–scattered field (TFSF) formulation is quite popular for solving Maxwell's equations in finite difference time domain (FDTD) and finite volume time domain (FVTD) methods. Here a fixed TFSF interface around the scattering body is employed to separate the total field (TF) cells and scattered field (SF) cells. This interface is selected based on experience as it is assigned prior to the...
This paper introduces an accurate edge‐based smoothed finite element method (ES‐FEM) for electromagnetic analysis for both two‐dimensional cylindrical and three‐dimensional Cartesian systems, which shows much better performance in terms of accuracy and numerical stability for mesh distortion compared with the traditional FEM. Unlike the traditional FEM, the computational domain in ES‐FEM is divided...
This paper deals with the breakdown voltage studies on a new lateral diffusion p‐channel MOSFET(LDMOS) and development of an optimal structure based on the breakdown voltage and on‐state resistance. In this new structure, the channel region (n‐body) and the lightly doped drain (LDD) structure were formed by a self‐aligned process. This approach leads to the saving of one mask level during fabrication...
Using nonintegrated multiple coils in an electromagnet is a way to manage energy and reduce maintenance costs. In order to model and analyze the lifting force and the magnetic field in different zone of the electromagnet, an exact magnetic equivalent circuit (MEC) is required. In this paper, an accurate MEC to analyze dual‐coil electromagnets is presented. MATLAB and ANSYS MAXWELL software are used...
To enable easy integration of Internet of Things (IoT) sensors with digital very large scale integrtaion (VLSI) circuits, the interface circuits need to operate efficiently even at low power supply voltages, consuming minimum power from the limited onboard supply source. Schmitt triggers have higher noise margins and lower delays as compared to conventional static CMOS logic circuits, at low‐voltage...
Antenna array synthesis is a complex nonlinear optimization problem. Differential evolution (DE) is an efficient method to solve the problem of antenna array synthesis. Different mutation strategies applied in different evolutionary phases can improve the search ability of DE. In this paper, a three‐phase adaptive differential evolution (TADE) algorithm is proposed for antenna array synthesis problems...
In the paper, we introduce a textile‐integrated waveguide (TIW) based on a novel artificial magnetic conductor (AMC), which consists of hexagonal elements. Thanks to the hexagonal shape of AMC elements, general TIW components (power‐dividers, waveguide bends, etc.) can be simply created. Since AMC replaces side walls of TIW, complicated manufacturing of vias can be eliminated. Due to the complex geometry...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.