In this paper, the theory and modeling of large scale photovoltaic (PV) in the power grid and its effect on power system stability are studied. In this work, the basic module, small signal modeling and mathematical analysis of the large scale PV jointed multi-machine are demonstrated. The principal portion of the paper is to reduce the low frequency fluctuations by tuned stabilizer in the atten...

This article will discuss the many available modulation technology options that are used for various EDGE systems, including direct-launch conversion transmitter (DCT), small-signal polar modulation (sometimes called “polar lite”), and large-signal open polar modulation, and compare them to the more effective, large-signal closed polar loop solution that delivers the best overall system perform...

We developed a robust large-signal model for InP/InGaAs HBTs. DC, small-signal, noise and power characteristics of InP/InGaAs HBTs are measured over a wide range of frequencies and bias conditions. A minimum noise figure (FMIN) of 3.5dB, and a gain of 16.8dB are achieved at 10-GHz. These measurement results are the basis for robust nonlinear models of InP/InGaAs HBT devices.

Parameter walkout of more than 250 power Al0.24Ga0.76As/In0.25Ga0.75As/GaAs double-recessed PHEMTs with different layout geometry and epitaxial structure has been experimentally measured and simulated. The relation between DC, small-signal and large-signal behavior has been recognized. The essential parameters of walkout were defined; their geometry and structural dependence have been derived. ...

A simple approximate formula for the AM-detector transfer factor, which is valid for small-signal modes as well as for large-signal ones is proposed. This formula allows one to model analytically (or numerically at the behavioural level) an AM-detector in the largesignal and small-signal modes taking into account the nonlinearity of its transfer factor. Formula validation is made by comparison ...

The paper presents a review on physics-based noise simulation techniques for RF semiconductor devices, starting with the small-signal case but with greater stress on noise in largesignal (quasi)-periodic operation. The nonautonomous (forced) operation case will be considered, which is relevant to all RF applications apart from oscillators. Besides their importance in device design, physics-base...

the transformation of biochemical information into a physical or chemical signal is the basic idea behind a biosensor. the efficient detection of charged biomolecules by biosensor with appropriate device has caught tremendous research interest in the present decade. the present work is related to the simulation study of the performance of a functionalized surface of a biologically sensitive fie...