V. Saidulu Department of Electronics and Communication, MGIT,Hyderabad, AP, India [email protected] K. Kumarswamy, Department of Electronics and Communication, BIET,Hyderabad, AP, India [email protected] K. Srinivasa Rao Department of Electronics and Communication, VIF, Hyderabad, AP, India P.V.D. Somasekhar Rao Department of Electronics and Communication, JNTUH,Hyderabad,AP,India...

A systematic study on various resonance measurement techniques of dielectric constant and dielectric loss at microwave frequencies has been undertaken. Characteristics of various resonance techniques are compared with each other. Suggestion on how to select adequate measurement techniques of microwave dielectric properties is given. Practical measurements by different methods are made and the r...

in this work, we have studied the solvent effects on values of gibbs free energy, enthalpy. entropy and dipolemoment in spread of solvents around anticancer thug of temreolomide that is an alighting agent. for thispurpose, the quantum mechanic calculations bawd on hanrertnick theory at the sto-36/3-2ith levels havebeen done. moreover, we have compared resulted thermodynamic values in gas phase ...

Some issues; leakage, tunneling currents, boron diffusion are threatening SiO2 to be used as a good gate dielectric for the future of the CMOS (complementary metal- oxide- semiconductor) transistors. For finding an alternative and novel gate dielectric, the NiO (Nickel oxide) and PVA (polyvinyl alcohol) nano powders were synthesized with the sol-gel method and their nano structural p...

The analysis and optimal design of a microstrip sensor for measuring the water content of rubber latex is described. The microstrip structure consists of one layer: substrate, protective layer and semi-infinite layer of wet medium. A functional relationship has been developed between the attenuation and the water content of the latex, and close agreement has been found between the computed and ...

Al2O3 doped Ba0.5Sr0.5TiO3 ~BST! thin films, with different Al2O3 contents, were deposited on ~100! LaAlO3 substrates by the pulsed laser deposition technique to develop agile thin films for tunable microwave device applications. The dielectric properties of Al2O3 doped BST films were determined with a nondestructive dual resonator near 7.7 GHz. We demonstrated that the Al2O3 doping plays a sig...

The dielectric properties of (Ba0:6Sr0:4)(Ti1 xSnx )O3 (0 x 0:3) ceramics were investigated. Single-phase specimens having a cubic perovskite structure could be obtained. As Sn concentration increased, dielectric loss decreased untill a composition of x 1⁄4 0:15 and slightly increased as Sn concentration increased further. The diffused phase transition appeared owing to substitution of Sn ions....

Manganese ferrite (MnFe2O4) has been successfully synthesized by using coprecipitation methods with a various particles size of 13.1, 13.8, 16.2, 18.1, and 18.4 nm. Analysis of crystal structure properties which has been carried out by using XRD (X-Ray Diffraction) method revealed that all samples belong to cubic spinel structure. The measurement used computerized impedance spectroscopy system ...

The dielectric properties of plastic resins can play a significant role in the signal performance of high speed, high frequency electrical components. Variations within the plastic material can occur as a result of environmental factors to cause changes to their dielectric properties. The dependency of moisture content and temperature on the dielectric constant and loss tangent of a number of p...