Essays about: "Permittivitet"

Showing result 1 - 5 of 9 essays containing the word Permittivitet.

  1. 1. Dielectric properties of ion-exchanged electrotechnical insulation papers : A study on the properties of novel papers

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Dan Selsmark; [2023]
    Keywords : Paper insulation; Frequency Domain Spectroscopy; Dielectric response; Karl Fischer titration; Dielectrics; Pappersisolering; Frekvensdomänsspektroskopi; Dielektrisk respons; Karl Fischer titrering; Dielektrika;

    Abstract : Electrical insulation papers are a widely used group of papers in insulation applications and has been used for more than 100 years. Common applications include use as the dielectric medium in capacitors and insulation material in cables, bushings and transformers. READ MORE

  3. 2. Numerical Simulations of Wave Propagation between a Left-Handed Material and a Right-Handed Material

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Balwan Rana; [2021]
    Keywords : Negative-Index Material; NIM; Positive-Index Material; RHM; Backward- Wave Propagation; Step-Index Interface; Graded-Index Interface; Left-Handed Material; LHM; Right-Handed Material; RHM; Analytical Solution; Validation; Negativt-Index Material; NIM; Positivt-Index Material; PIM; Bakåtvåg-utbredning; Steg-Index Gränssnitt; Gradering-Index Gränssnitt; Vänsterhänt Material; LHM; Högerhänt Material; RHM; Analytisk Lösning; Validering;

    Abstract : The discovery of metamaterials has led to major advances in different fields of physics including optics, microwave engineering and acoustics. Specific to theoretical electromagnetism, the introduction of metamaterials have led to the development of negative-index materials (NIMs) with simultaneous negative permittivity and negative permeability with backward-wave propagation. READ MORE

  4. 3. Measurement of the Complex Permittivity of Phantoms for 5G/6G Compliance Tests

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : William Utriainen; Adel Alizadeh; [2021]
    Keywords : 5G; radiation; absorption; safety;

    Abstract : In late 2019, 5G, the next generation of networktechnology was first deployed. The first deployment covers onlya small part of the total data transfer needs. In order to increasedata transfer, the frequency band used, must be increasedtowards the millimeter wave.As the frequency band is increased, safety studies must be done. READ MORE

  5. 4. Simulation of FMCW mode MIMO Radar for Performance Analysis as Industrial Safety System

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Jay Prakash; [2021]
    Keywords : Industrial safety; SIL; radar; MIMO; FMCW; EM scattering; FEM; Tissue permittivity; Radar cross section; CFAR; maskinsäkerhet; SIL; radar; MIMO; FMCW; elektromagnetisk spridning; FEM; Tissue permittivitet; Radar cross section; CFAR;

    Abstract : In industrial environments workers can be prone to dangerous situations that may cause harm. In order to prevent accidents and fulfill legislative requirements for safe working condition, a safety system can be needed to be installed in place. READ MORE

  6. 5. mm Wave Near Field Spot Focus Technique in Free Space Dielectric  Properties Evaluation Method

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Yanhan Liu; [2021]
    Keywords : Permittivity; near-field-focused NFF antenna; genetic algorithm; Permittivitet; närfältsfokuserad antenn; genetisk algoritm.;

    Abstract : Radomes were invented to protect sensitive antenna systems from the disturbing environment. Estimation of their permittivity is a vital step for their design. This project studies the free- space method to measure the permittivity of radome materials. READ MORE