Sökning: "Antenna Array"

Visar resultat 16 - 20 av 108 uppsatser innehållade orden Antenna Array.

  1. 16. Beam-steered Modulation in Advanced Antenna System

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

    Författare :Smitha Jinnahalli Venugopal; [2023]
    Nyckelord :5G-MIMO; Beam-forming; Beam-steering; Advanced antenna systems; Technology and Engineering;

    Sammanfattning : The newer spectral bands in millimeter-wave (mm-Wave) spectrum over the last few years have made higher data rates possible and improved quality of service for the users, but it possesses new challenges to design spectral agile radios. Power Amplifiers (PA) are a crucial analog component connected to Multiple input multiple output (MIMO) antennas which inherits non-linear effects. LÄS MER

  3. 17. Assessment of Exposure to Electromagnetic Fields from Distributed MIMO Antennas

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

    Författare :Frans Nyberg Zou; [2022]
    Nyckelord :6G; Distributed MIMO; Electromagnetic field exposure; Hybrid simulations; 6G; Distribuerad MIMO; Exponering av elektromagnetiska fält; Hybridsimueringar;

    Sammanfattning : Research on 6G telecommunication networks has been initiated. Among all potential technology components, the distributed multi-input multioutput (D-MIMO) technology is one of the promising enablers. Due to the new technology solutions, additional methodologies for assessment of electromagnetic field (EMF) exposure need to be developed. LÄS MER

  4. 18. Design of an Array of Patch-elements With a Band-pass Frequency Selective Surface Hybrid Radome : Analysis and characterisation of a frequency selective surface and a phased array antenna

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

    Författare :Curt-Herman Normark Frisk; [2022]
    Nyckelord :Frequency Selective Surface; Microstrip Patch Element; Circular Polarisation; Phased Array Antenna; Single Feed; Frekvensselektiv Yta; Mikrostrip Patchelement; Cirkulär Polarisering; Fasstyrd Gruppantenn; Single-matad;

    Sammanfattning : A circular polarised phased array antenna and a frequency selective hybrid radome are designed and evaluated. The antenna system is well suited as a part of a communication link between platforms with a 600 MHz bandwidth and a centre frequency of 5 GHz. LÄS MER

  5. 19. Scann Loss Reduction on Phased Array Antenna

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

    Författare :Wanyu Zhang; [2022]
    Nyckelord :Phased Array Antenna; Vivaldi Antenna; Scan Loss; Coverage Angle; Sub-array; Embedded Radiation Pattern; Fasad Array Antenn; Vivaldi Antenn; Skanningsförlust; Täckningsvinkel; Sub-array; Inbyggt strålmönster;

    Sammanfattning : Phased array antennas with small size and light weight are proposed to make signal transmitting more efficiently and accurately. These antennas have such advantages that they can realize beam scanning over a large range, accurately track and identify targets within the observation range. LÄS MER

  7. 20. Kriging radio environment map construction

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Erik Lundqvist; [2022]
    Nyckelord :Kriging; Radio environment; Statistics; Inverse distance weighting;

    Sammanfattning : With the massive increase in usage of some parts of the electromagnetic spectrum during the last decades, the ability to create real time maps of signal coverage is now more important than ever before. This Masters project is designed to test two different methods of generating such maps with a one second limit to processing time. LÄS MER