Sökning: "Frequency orientation"

Visar resultat 11 - 15 av 50 uppsatser innehållade orden Frequency orientation.

  1. 11. Study of HfN as seed layer for next generation of BAW RF filters : synthesis, characterization, and investigation of piezoelectric performance

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Eduard Llorens Balada; [2020]
    Nyckelord :HfN; AlScN; AlN; sputtering; XRD; SEM; seed layer; epitaxial growth;

    Sammanfattning : Micro-electro-mechanical systems (MEMS) have become an essential component of a wide range ofelectronic devices over the last decades such as accelerometers, microphones, gas sensors, and filters.During this new millennium, a new radio frequency (RF) technology has been developed to satisfy thetough demands that arose due to the implementation of 5G wireless communication: bulk acoustic wave(BAW) filters. LÄS MER

  3. 12. Probably certain : Translating hedges in academic research articles from Swedish to English

    Magister-uppsats, Linnéuniversitetet/Institutionen för språk (SPR)

    Författare :Bianca Seydel; [2020]
    Nyckelord :adaptation; addition; cultural filter; epistemic modality; equivalence; faithful translation; hedges; hedging; L2 learner; omission; scientific research articles; translation;

    Sammanfattning : While it certainly can be argued that translation is a quite demanding discipline in general, some areas within this field are, naturally, more challenging than others. One of these is hedging, which serves a broad variety of purposes both with regard to the author and to the intended readership, and hence must be translated accordingly. LÄS MER

  4. 13. Gap properties of helical edge states in two-dimensional topological insulators with time-dependent magnetic impurities

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Simon Wozny; [2020]
    Nyckelord :topological insulators; edge states; impurities; density of states; Green s function; Floquet; Physics and Astronomy;

    Sammanfattning : The quantum mechanical equivalent of the classical Hall effect can lead to interesting results in solid state physics. A similar effect, that has received attention in recent years, occurs when large spin-orbit coupling is present in a material, the so-called quantum-spin Hall effect. LÄS MER

  5. 14. Component-Based Transfer Path Analysis and Hybrid Substructuring at high frequencies : A treatise on error modelling in Transfer Path Analysis

    Master-uppsats, KTH/Maskinkonstruktion (Avd.)

    Författare :Harikrishnan Venugopal; [2020]
    Nyckelord :Dynamic Substructuring; Error modelling; Transfer Path Analysis; Uncertainty Propagation; Dynamisk substrukturering; Feluppskattning; Överföringsanalys; Osäkerhetspropagering;

    Sammanfattning : The field of modal testing and analysis is currently facing a surge of interest in error modelling. Several errors which occur during testing campaigns are modelled analytically or numerically and propagated to various system coupling and interface reduction routines effectively. LÄS MER

  7. 15. Additive manufacturing and radio frequency filters : A case study on 3D-printing processes, postprocessing and silver coating methods

    Master-uppsats, KTH/Industriell produktion

    Författare :Ana García-Verdugo Zuil; Amanda Herrero Martín; [2020]
    Nyckelord :Additive manufacturing; radio-frequency filters; post-processing; silver coating; surface roughness; Multi Jet Fusion MJF ; Selective Laser Melting SLM ; Tillsatsstillverkning; radiofrekvensfilter; efterbehandling; silverbeläggning; ytojämnhet; Multi Jet Fusion MJF ; Selective Laser Melting SLM ;

    Sammanfattning : Additive manufacturing (AM) is an attractive way to shorten development time, reduce product weight and allow the manufacturing of more complex products than by conventional manufacturing processes. The problem arises when the previous traditional manufacturing requirements need to be fulfilled by AM as well as the volume production capability. LÄS MER