Sökning: "omni directional antenna"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden omni directional antenna.

  1. 1. Evaluation, Optimization and Characterization of Miniaturized Triple Band Antennas for Wi-Fi 6 and Wi-Fi 6E

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

    Författare :Muzi Cheng; [2022]
    Nyckelord :Antennas; Wi-Fi 6E; Radiation; Resonance; Tuning; Antenner; Wi-Fi 6E; Strålning; Resonans; Tuning;

    Sammanfattning : Antenna is a key component in wireless devices such as cell phones, laptops and smartwatches. With the new generation of Wi-Fi technology: Wi-Fi 6E coming out, 1200MHz bandwidth from 5.925GHz to 7.125GHz is freed for use. LÄS MER

  3. 2. Analysis for frequencies for future 5G system by positioning receiver at different altitudes.

    Master-uppsats, Högskolan i Gävle/Avdelningen för elektroteknik, matematik och naturvetenskap

    Författare :Tanbir Bakth Nabil; [2020]
    Nyckelord :;

    Sammanfattning : One of the main advantages of 5G is the use of high frequency signals and above 6GHz frequency range is one of the most researched topics in the wireless communication industry. Large unused spectrum is expected to be used in the next generation 5G communication. LÄS MER

  4. 3. Analysis of Channel Measurements Using a Very Large Antenna Array

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

    Författare :Tomas Sidabras; Mohammad Salman; [2015]
    Nyckelord :channel measurements; very large antenna array; massive MIMO; channel modeling; Technology and Engineering;

    Sammanfattning : Accurate wireless channel models are crucial to simulate the effect of radio wave propagation in a channel on wireless communication systems. By calculating physical processing effects that signal undergoes while traveling from transmitter to the receiver, channel models help to analyze performance of wireless systems. LÄS MER

  5. 4. Directional Spectrum Sensing and Transmission Using a Sector Antenna

    Master-uppsats, Institutionen för informationsteknologi och medier

    Författare :Bilal Hasan Qureshi; [2012]
    Nyckelord :Spectrum Sensing; Ray-tracing and Sector Antennas;

    Sammanfattning : Spectrum sensing plays a key role for radio resource awareness in cognitive radio. To enhance the capabilities of cognitive radio nodes, exploiting the spatial resource in addition to frequency and time re-sources seems reasonable. LÄS MER

  7. 5. Building and experimentally evaluating a smart antenna for low power wireless communication

    Magister-uppsats, Akademin för innovation, design och teknik

    Författare :Erik Öström; [2010]
    Nyckelord :smart; antenna; SPIDA; wireless; communication; low power; parasitic element; SICS;

    Sammanfattning : In wireless communication there is commonly much unnecessary communication made in directions not pointing towards the recipient. Normally omni directional antennas are being used which sends the same amount of energy in all directions equally. LÄS MER