Sökning: "Antenna Array"

Visar resultat 21 - 25 av 108 uppsatser innehållade orden Antenna Array.

  1. 21. A Study of Direction of Arrival Methods Based on Antenna Arrays in Presence of Model Errors.

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Julia Sjödin; [2022]
    Nyckelord :Direction of Arrival; DOA; WSF; MUSIC; TLS-ESPRIT; Extended Kalman filter; model error;

    Sammanfattning : Methods for Direction of Arrival, DOA estimation of multiple objects based on phased arrayantenna technology have many advantages in for example electronic warfare and radarapplications. However, perfect calibration of an antenna array can seldom be achieved. LÄS MER

  3. 22. Antenna Options for High Altitude IMT Base Stations (HIBS) in Cellular Networks

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Harald Magnusson; [2022]
    Nyckelord :High altitude IMT Base Station HIBS ; High Altitude Platform Station HAPS ; Link Feasibility; Coverage Feasibility; Phased Array Antenna; Parabolic Reflector Antenna;

    Sammanfattning : This thesis is the result of a collaboration between Ericsson AB and Luleå University of Technology. A feasibility study has been conducted to investigate antenna options for the HIBS access link. The study contains two parts. Firstly, a link budget investigating the gain required from the antenna. LÄS MER

  4. 23. Scanning range extension by combining arrays with lenses

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Hairu Wang; [2022]
    Nyckelord :Dome Antenna; Dielectric Lens; Array Antenna; Kupolantenn; Dielektrisk lins; Array antenn;

    Sammanfattning : Array antennas, and more specifically phased array antennas, are widely used in radar detection and communication systems because of their excellent beam scanning ability and simple control. Generally speaking, the scanning function can be realized in two ways: mechanically or electronically. LÄS MER

  5. 24. High-Level Simulator of Federation Orchestration

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

    Författare :Toon Keymeulen; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The development of a new wireless access infrastructure can introduce some exciting new applications that are impossible to deploy with the current generation communication infrastructure. Therefore the REINDEER project presents a new distributed cell-free network infrastructure called RW, that creates favourable propagation and antenna array interaction. LÄS MER

  7. 25. Low-profile fully-metallic Luneburg lens antenna

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Justine Djounidi; [2022]
    Nyckelord :Beam Scanning; Luneburg Lens Antenna; Fully-metallic; Millimeter Wave; Vinkelskanning; Luneburg Linsantenn; Fullt Metalliskt; Millimetervåg;

    Sammanfattning : Modern communication systems face new technological challenges, such as the narrowness and overload of the conventional frequency bands employed for these applications. Nowadays, communication systems are expected to operate at higher frequencies, such as the mm-wave band. LÄS MER