We present an experimental, analytical and numerical investigation of the passage of electromagnetic signals through a device with voltage-dependent differential capacitance. This dependence gives rise to the device’s nonlinear response, which can then be tuned by an externally applied static electric field. The system is modeled with a wave equation for the current and the charge density with ...

A very low voltage 9th order linear phase baseband switched capacitor (SC) filter has been designed to be used as part of a cellular GSM (Global System Mobile) receiver. A Gaussian-to-6dB filter of the order of seven is chosen and a second order function is added to reduce the group delay variations around. The filter uses a fully differential topology to increase the dynamic range and reduce t...

In this study, Polyaniline molecule (emeraldine base) is modeled as a molecular wire and the effects of the metal/molecule coupling strength and the molecule length on the current-voltage (I-V) characteristics are numerically investigated. Using a tight-binding Hamiltonian model, the methods based on Non-equilibrium Green’s function theory, Landauer formalism and Newns-Anderson model, our calcu...

Dynamic reactive power sources can be used to effectively mitigate the fault-induced delayed voltage recovery (FIDVR) and transient voltage instability issues. When many var sources need to be installed at planned locations, optimization of their sizes is a complicated nonlinear optimization problem due to its non-convexity and the dependence of the constraint on time-series trajectories of pos...

To obtain fast time response plasma properties, electron density and electron temperature, with a Langmuir probe the applied probe voltage has to be swept at high frequency. Due to the RC characteristics of coaxial cables, an induced noise of square waveform will appear when a sawtooth voltage is applied to the probe. Such a noise is very annoying and difficult to remove, particularly when the ...

This paper has examined the analytical solution of steady fully developed natural convective flow of a viscous incompressible and electrically conducting fluid between vertical channel by taking the Hall current and induced magnetic field into account. We have obtained the non-dimensional simultaneous ordinary differential equations using the suitable non-dimensional variables and parameters in...

We are entering in to a VLSI design era where few Pico seconds of memory access or cycle times will make a big impact on SOC designs performance. So, improving each Pico second of SRAM memory performance will lead to many design wins at the present competitive market. In SRAM memory design it’s important to see that sufficient voltage differential is created by the time sense amplifier is turne...

Recently, negative differential resistance devices have attracted considerable attention due to their folded current-voltage characteristic, which presents multiple threshold voltage values. Because of this remarkable property, studies associated with the negative differential resistance devices have been explored for realizing multi-valued logic applications. Here we demonstrate a negative dif...

Abstract Modern low-voltage scanning transmission electron microscopes (STEMs) have been invaluable for the atomic scale characterization of two-dimensional (2D) materials. Nevertheless, observation intrinsic structures semiconducting and insulating 2D materials with 60 kV-microscopes has remained problematic due to radiation damage. In recent years, ultralow-voltage developed prospects minimiz...