Silica Aerogel: An Intrinsically Low Dielectric Constant Material

Mechanical behavior of ultralow-dielectric-constant mesoporous amorphous silica

Boron Nitride Nanotube Mat as a Low-k Dielectric Material with Relative Dielectric Constant Ranging from 1.0 to 1.1

Preparation and Characterization of Silica Aerogel Microspheres

Silica aerogel microspheres based on alkali silica sol were synthesized using the emulsion method. The experimental results revealed that the silica aerogel microspheres (4-20 µm in diameter) were mesoporous solids with an average pore diameter ranging from 6 to 35 nm. The tapping densities and specific surface areas of the aerogel microspheres are in the range of 0.112-0.287 g/cm³ and 207.5-66...

Measurement of Dielectric Constant and Loss Factor of the Dielectric Material at Microwave Frequencies

A new technique to evaluate the dielectric constant and loss factor of a homogeneous dielectric material using rectangular shaped perturb cavity has been developed. The values of S-parameters are measured experimentally by placing the sample in the center of the cavity resonator. Sample under test is fabricated in the form of a cylinder. The real and imaginary part of the permittivity can be th...

Dielectric Constant and Loss Factor of Dielectric Material Using Finite Element Method in a Cavity

A numerical technique to estimate the dielectric constant and loss factor of a homogeneous dielectric material placed in an arbitrary shaped cavity has been developed. The values of S-parameters are measured experimentally by placing the sample in the cavity. Starting with a trial set of permittivity values, the computation is carried out using the finite element technique (FEM) to match the Sp...