Sökning: "reflection coefficient"

Visar resultat 1 - 5 av 31 uppsatser innehållade orden reflection coefficient.

  1. 1. Antenna Arrays for Dual-Frequency Harmonic Radar Application

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

    Författare :Venkatesh Raja; Mohammad Zafar Mohammad; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The aim of this thesis is to design two patch antenna arrays for dual-frequency harmonic radar application, one for the transmitter and the other for the receiver. The arrays are used to track the Bogong moth that migrates from the countryside to the Australian Alps during spring. LÄS MER

  3. 2. 3D geospatial data requirements for simulating noise using the Nord2000 model: Case study of the impact of building façade types and roof configurations on simulated traffic noise levels

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Soraya Hosseinvash Azari; [2023]
    Nyckelord :Physical Geography; Ecosystem Analysis; noise simulation; traffic; Nord2000 model; building façade types; roof configurations; geospatial data; 3CIM; SoundPLAN; acoustic properties; urban areas; 3D city model; Earth and Environmental Sciences;

    Sammanfattning : The European Union implements the Environmental Noise Directive (END), which offers a framework for evaluating and assessing environmental noise. All EU members are required to create strategic noise maps to inform the public about noise pollution and its effects. LÄS MER

  4. 3. Method evaluation for probing DNA sorption to clay minerals : Evaluation of fluorescent and spectroscopic quantification of DNA as well as DNA interactions of Kaolinite and Montmorillonite

    Kandidat-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Oskar Wangdell; [2022]
    Nyckelord :;

    Sammanfattning : The association of DNA/RNA to mineral surfaces is an emerging field with widespread applications from biotechnological solutions to paleogenetics. Evaluating available methods to quantify adsorption will be essential to further investigate how to control and predict loading of DNA onto minerals. LÄS MER

  5. 4. Increasing the Crossover Levels of Beams in Geodesic Luneburg Lens Antennas

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

    Författare :Philip Arnberg; [2021]
    Nyckelord :Luneburg lens; geodesic lens; generalized Luneburg lens; crossover level and lens antennas.; Luneburg lins; geodetisk lins; generaliserad Luneburg lins; korsningsnivåer och linsantenner.;

    Sammanfattning : The new and forthcoming generation of mobile networks intend to operate at considerably higher frequencies than the previous systems. This lift in frequency of operation alleviates today’s communication systems’ crowded bandwidth and allows for faster data rates than previously possible. LÄS MER

  7. 5. Hybrid Coupler for LMBA Input Match Using an Active Inductor

    Magister-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Karthik Doddanna; [2021]
    Nyckelord :LMBA; gyrator-c; active inductor; hybrid coupler; TSMC 0.18um.;

    Sammanfattning : With the increase in demand for compact and high data rate communication systems, there is a need for high efficiency with modulated signals (PAPR 5-10 dB) for base-station power amplifiers. One of the famous architectures used to achieve this is Doherty architecture. LÄS MER