Essays about: "measuring permittivity"

Showing result 1 - 5 of 7 essays containing the words measuring permittivity.

  1. 1. Study of different methodologies to determine relative dielectric constant of given substrate using fabrication, modelling and measurement strategies

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Anders Lundberg; [2021]
    Keywords : Relative dielectric constant; relative permittivity; PCB substrate material;

    Abstract : In this thesis, different methods for measuring the relative dielectric constant is investigated using simulations and experimental approaches. The first method is known as the S-parameter inversion method. In this method formulae is used to calculate the characteristic impedance of the microstrip line from measured S-parameters. READ MORE

  3. 2. Mixing ratio determination of binary solvent mixtures in high-pressure microfluidics

    University essay from Uppsala universitet/Mikrosystemteknik

    Author : Anton Wilson; [2017]
    Keywords : fluid; mixture; high-pressure; microfluidics;

    Abstract : The focus of this project is to find a suitable method to determine the mixing ratio inbinary fluid mixtures in continuous-flow microfluidic systems because of thedifficulties in doing so for mixtures containing compressible fluids. Refractive indexand relative static permittivity are both properties that could be suitable, but methodsmeasuring the refractive index scales badly for microsystems. READ MORE

  4. 3. Ray-tracing based analysis of channel characteristics and capacity improvement capabilities of spatial multiplexing and beamforming at 15 and 28 GHz

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Qingbi Liao; [2016]
    Keywords : 5G; 15 GHz; 28 GHz; beamforming; capacity; channel multiplexing richness; hybrid beamforming; MIMO; mm-Wave; ray-tracing; spatial multiplexing; Technology and Engineering;

    Abstract : In the previous decades, mm-Wave frequency bands have largely been ignored for cellular communication because of the high free space attenuation as well as the cost and complexity of mm-Wave RF circuits. However, with the improvement of RF and antenna technologies over the last decade, it has become feasible to con- sider mm-Wave bands for cellular communications. READ MORE

  5. 4. TEM Cell design for Material Characterization

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Filip Olsson; Edward Lindenholst; [2016]
    Keywords : TEM cell; Transverse ElectroMagnetic cell; TEM cell design; material characterization; measuring permittivity; measuring permeability; Technology and Engineering;

    Abstract : This thesis investigates a TEM cell (Transverse ElectroMagnetic cell) design for material characterization. The focus is to design a practical setup where the material measurement is straightforward to implement. A test sample is placed between the two ports in the setup to measure the scattering parameters. READ MORE

  6. 5. MEASUREMENT OF DIELECTRIC CONSTANT FOR WATER AND ITS TEMPERATURE DEPENDENCE AT 0 AND 86ºC

    University essay from Avdelningen för elektronik, matematik och naturvetenskap

    Author : Sergio Apicella Fernández; [2014]
    Keywords : ;

    Abstract : The dielectric properties determine the electrical characteristics of materials. These properties are important for understanding the behavior of materials and how they can interact with each other. READ MORE