Sökning: "transmitted electric field"

Hittade 5 uppsatser innehållade orden transmitted electric field.

  1. 1. Digitally Controlled Oscillator Topologies for mm-Wave Pulsed Coherent Radar

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Klas Junskog; [2023]
    Nyckelord :oscillators; mm-wave; radar; Technology and Engineering;

    Sammanfattning : The advancement of future generations of wireless communication and radar sensing warrants the need for mm-wave digitally controlled oscillators (DCOs) with high-frequency trade-offs in consideration. The purpose of this project is to investigate DCO topologies inspired from scientific literature. LÄS MER

  3. 2. Wide-Angle Radome Design for Low-Cost Additive Manufacturing

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Martin Fajerberg; Mattias Nylander; [2022]
    Nyckelord :Radar; Radome; A-Sandwich; B-Sandwich; Multilayer; Polarization; Angle of Incidence; Finite Element Method; Differential Evolution Optimization; Transmission Line Theory; Honeycomb; Additive Manufacturing; Electromagnetic Theory; Technology and Engineering;

    Sammanfattning : The radome, a portmanteau of the words radar and dome, is a protective dielectric cover to protect a radar from its surrounding environment. The surrounding environment can be rain, wind, sand, dust and whatever else that might harm the radar. LÄS MER

  4. 3. Electromagnetic Homogenization-simulations of Materials

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Julia Törnqvist; [2019]
    Nyckelord :relative permittivity; electromagnetic simulations; FDTD method; scattering parameters; transmitted electric field; reflected electric field; plane wave; wave guides; percolation;

    Sammanfattning : This thesis aims to determine the distribution of the relative permittivity for random mixtures of material using electromagnetic simulations. The algorithm used in the simulations is the FDTD method which solves Maxwell's equations numerically in the time-domain. LÄS MER

  5. 4. Analysis of Inductive Coupling Wireless Power Transfer Systems

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Arianna Ginette Amaya Colina; [2018]
    Nyckelord :wireless power transfer; inductive coupling; coil parameters; wireless charging; Technology and Engineering;

    Sammanfattning : Inductive coupling wireless power transfer (WPT) technology is gaining increasing popularity in recent years, especially in the field of wireless charging of portable devices. Although the principles behind WPT systems can be explained using well known results from electromagnetic theory, many questions remain regarding the behavior of such systems. LÄS MER

  7. 5. Modellering och simulering av Multiantennsystem avsett för litet fartyg

    Uppsats för yrkesexamina på grundnivå, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Viktor Annerstål; Peter Ottosson; [2016]
    Nyckelord :RIB; Military; Antenna; antenna system; EMpro; Keysight; Electric field; S- parameters; reflection coefficient; modeling; simulation; EMC; Shortwave; HF; VHF; UHF; FDTD; HF1630; VHF3088; UHF100512; Maxwells equations; Småfartyg; Militär; Antenn; Antennsystem; EMPro; Keysight; Elektriskt fält; S-parameter; Reflektionskoefficient; Modellering; Simulering; EMC; Kortvåg; HF; VHF; UHF; FDTD; HF1630; VHF3088; UHF100512; Maxwells ekvationer;

    Sammanfattning : Within the military there is great need for reliable communication between vehicles. During the planning and construction of a military RIB, Rigid-hulled Inflatable Boat, it is important to design an efficient antenna system that does not deteriorate out of disorder. LÄS MER