Sökning: "Transformation optics"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Transformation optics.

  1. 1. 3D-Printed Geodesic Luneburg Lens Antenna With Novel Patch Antenna Feeding

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

    Författare :Elin Berglund; Sandis Freimanis; [2021]
    Nyckelord :Luneburg lens; patch antenna; geodesic; transformation optics; 3D-printing;

    Sammanfattning : With the roll out of new technologies and the worldbecoming more connected, there is a rising demand for higherbandwidth and new frequency bands. To meet the demand,higher frequencies are used in new communication systems.Higher frequencies come with the need for new antenna designsand one promising type of antenna is the lens antenna. LÄS MER

  3. 2. 3D-Printed Geodesic Reflective Luneburg Lens Antenna for X-Band

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

    Författare :David Oxelmark; Lukas Jonasson; [2021]
    Nyckelord :3D-printing; Geodesic lens; Reflective Luneburg lens; Transformation optics; Waveguide; X-band;

    Sammanfattning : With the rise of 5G and the increasing number ofdevices, novel antenna designs are needed to meet the demandof the future. In this report, the authors present a design andexperimental verification of a 3D-printed Geodesic ModulatedReflective Luneburg lens antenna working at the X-Band, 8-12GHz. LÄS MER

  4. 3. Smartphone-based shade analysis using hemispherical fisheye imaging for local solar energy potential

    Master-uppsats, Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Jonas Andersson; [2020]
    Nyckelord :solar power; shading analysis; smartphone-based; fisheye lens; image segmentation; watershed transformation; Technology and Engineering;

    Sammanfattning : In the emerging trend of smartphone use and a rising demand for solar photovoltaic (PV) power worldwide, this master thesis project explores the potential to utilize commercially available fisheye lens optics in combination with a smartphone camera to capture and analyze local shading conditions. Photogrammetric studies involving hemispherical sky photos have since long been used for environmental studies and solar energy applications, although mostly with high-end costly equipment. LÄS MER

  5. 4. Relativistic Visualizations

    Magister-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Andreas Ringstam; [2020]
    Nyckelord :Special relativity; Visualization; see; observe;

    Sammanfattning : Special relativity is an area of physics that is abstract and consists of concepts and effects that is hard to link to everyday experience. From a learning perspective, that is problematic as we form new knowledge by linking it to old experiences. One approach to experience a relativistic environment is through computer simulations. LÄS MER

  7. 5. Cell Image Transformation Using Deep Learning

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Emmy Sjöstrand; Jesper Jönsson; [2018]
    Nyckelord :Mathematics and Statistics;

    Sammanfattning : This thesis was written at CellaVision who sells digital microscope systems, mainly used for blood analysis. Blood tests are an important part of modern health care and today digital microscopes are widely used to replace conventional microscopy. LÄS MER