Sökning: "substrate integrated waveguides"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden substrate integrated waveguides.

  1. 1. Integrated Antenna Solutions for Wireless Sensor and Millimeter-Wave Systems

    Författare :Shi Cheng; Anders Rydberg; Paul Hallbjörner; Zhining Chen; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; harmonic radar HR ; liquid alloy; millimeter-wave; micromachining; phase shifters; planar inverted cone antennas PICA ; printed circuit boards PCB ; quasi-Yagi antennas; radio frequency microelectromechanical system RF MEMS ; stretchable antennas; substrate integrate waveguides SIW ; T-matched dipole antennas; tapered slot antennas; traveling wave array antennas; ultrawideband UWB ; wireless sensor networks.; Electrical engineering; Elektroteknik; Elektronik; Electronics;

    Sammanfattning : This thesis presents various integrated antenna solutions for different types of systems and applications, e.g. wireless sensors, broadband handsets, advanced base stations, MEMS-based reconfigurable front-ends, automotive anti-collision radars, and large area electronics. LÄS MER

  3. 2. High Aspect Ratio Microstructures in Flexible Printed Circuit Boards : Process and Applications

    Författare :Hanna Yousef; Klas Hjort; Mikael Lindeberg; Peter Leisner; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; flexible printed circuit boards; polyimide; through-hole vias; ion track technology; thermoelectricity; thermopiles; substrate integrated waveguides; millimeter wave devices; Teknisk fysik; Engineering physics; Teknisk fysik;

    Sammanfattning : Flexible printed circuit boards (flex PCBs) are used in a wide range of electronic devices today due to their light weight, bendability, extensive wiring possibilities, and low-cost manufacturing techniques. The general trend in the flex PCB industry is further miniaturization alongside increasing functionality per device and reduced costs. LÄS MER

  4. 3. Nanophotonic devices in thin film lithium niobate

    Författare :Alessandro Prencipe; Katia Gallo; Val Zwiller; Mohammed Amin Baghban; Rachel Grange; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Integrated optics; Electro-optics; Thin film lithium niobate; Phase shifted Bragg grating; Waveguide-integrated single photon detectors; Erbium implantation; Integrerad optik; elektrooptik; tunnfilmslitiumniobat; fasfo ̈rskjutet Bragg-gitter; V ̊agledare-integrerade singelfotondetektorer; Erbiumimplantation.; Optics and Photonics; Optik och fotonik;

    Sammanfattning : Photonic devices play a fundamental role in today’s society and are a central building blocks for numerous applications, ranging from modern internet to sensing and manufacturing, and photonics is foreseen to be the backbone of future quantum internet and quantum communication systems thanks to the long coherence time of light. At variance with electronic integrated circuits, where silicon has been the material of election for many decades, in the case of photonic integrated circuits (PICs) there are numerous options available for the material substrate. LÄS MER

  5. 4. Fabrication of Integrated HBV Multipliers for THz Generation

    Författare :Aleksandra Malko; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon.; indium phosphide; frequency multipliers; power sensors; Epitaxial transfer; heterostructure barrier varactors;

    Sammanfattning : The main objective of this licentiate thesis is to demonstrate silicon integrated HBV frequency multipliers for THz generation with RF performance comparable with InP technology. The choice of silicon is motivatedby better thermal and mechanical properties, cost and ease of integration compared to III-V semiconductor substrates. LÄS MER

  7. 5. Optical interconnects and high frequency electronic packaging : SBU-materials, material characterization, LAP- & microprocessing

    Författare :Steffen Uhlig; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optical interconnects; overview opto coupling components; overview planar waveguide amplifiers; large area panel processing; polymer waveguides; multilayer thin film technology; ORMOCER®; sequential build up; permittivity; dielectric loss;

    Sammanfattning : The main objective of this thesis is to discuss and demonstrate optical interconnect technologies. These can be used to enhance the data throughput capacity of future printed circuit boards and backplanes, i.e. exchange Copper conductors with light conductors. LÄS MER