A fabrication method for adaptive dielectric gradient insulating components

A Novel and Accurate Method for the Design of Dielectric

The development of numerical techniques now permits us to analyze complex structures such as dielectric resonator filters and planar passive elements for coplanar monolithic microwave integrated circuits. In this paper, we describe a novel method for designing dielectric resonator filters. Then a Chebychev band pass filter is designed by coaxially placing high-Q TM01Q dielectric resonators ...

Adaptive Method for Gradient Coil Design

Method One of the obstacles in designing gradient coil is the general discretization procedure that approximates the continuous current densities by a number of current carrying conductors. The shape of the conductors’ layout determines the properties of the gradient coil such as the gradient strength, field quality characteristics inside the FoV, level of shielding, coil resistance, slew rate,...

A conjugate gradient based method for Decision Neural Network training

Decision Neural Network is a new approach for solving multi-objective decision-making problems based on artificial neural networks. Using inaccurate evaluation data, network training has improved and the number of educational data sets has decreased. The available training method is based on the gradient decent method (BP). One of its limitations is related to its convergence speed. Therefore,...

Dielectric Elastomers Conductive Elastomer Insulating Elastomer

Semi-insulating GaN substrates for high-frequency device fabrication

Thick c-plane unintentional doped and iron-doped GaN substrates were grown by hydride vapor phase epitaxial technique on sapphire substrates. The morphology and crystalline quality of the freestanding samples show no evident degradation due to iron doping. Low-temperature photoluminescence measurements show reduction of the exciton-bound to neutral impurities band intensities with iron doping i...