Sökning: "Advanced Antenna System AAS"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Advanced Antenna System AAS.

  1. 1. Standardized Test Methods in Over-the-Air Chambers for FCC Part 27

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Oskar Hellström; [2023]
    Nyckelord :;

    Sammanfattning : Base stations (BSs) are the cornerstone that enables wireless communications. In order for a new BS variant to be imported and sold in the US they are required to undergo electromagnetic compatibility (EMC) testing. This testing is necessary to obtain their Federal Communications Commission (FCC) certification. LÄS MER

  3. 2. Simulation and Testing of a MU-MIMO Beamforming System

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

    Författare :Nazyar Mehdishishavan; Zonghan Wang; [2023]
    Nyckelord :Multi-User Multiple-Input Multiple-Output MU-MIMO ; Beamforming; Sounding Reference Signal SRS ; Reciprocity-based; Butler matrix; Advanced Antenna System AAS ; Technology and Engineering;

    Sammanfattning : Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology has become increasingly important in the field of wireless communication due to its ability to highly increase the capacity and efficiency of wireless networks [1]. Beamforming, as a technique used in MU-MIMO systems, improves network performance by improving signal quality and reducing interference. LÄS MER

  4. 3. 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

  5. 4. Test Method For De-embedding Symmetric And Asymmetric Fixtures In 5G mm-Wave Advanced Antenna System

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

    Författare :Mukul Singh; [2021]
    Nyckelord :;

    Sammanfattning : Recent development in the mobile technologies such as 4G, 5G and upcoming 6G requires Advanced Antenna System (AAS) for large-scale deployments. AAS operates at mm-wave frequencies to meet the demand for high data rate, better coverage and improved end-user experience. LÄS MER

  7. 5. Nonlinear effects and predictions in advanced antenna systems in 5G Distortion Effects in 5G

    Master-uppsats, Mittuniversitetet/Institutionen för informationssystem och –teknologi

    Författare :Altahra Mohammed; [2019]
    Nyckelord :PA; DPD; Active load-pull; Calibration.;

    Sammanfattning : In the next-generation wireless cellular communication systems known as 5G, radio equipment will be deployed in several frequency bands, among them is the millimeter wave bands (26 - 40 GHz). The use of these high frequencies can help to mitigate the limited spectrum problem and higher data rates can be achieved [2] . LÄS MER