Now showing items 26-31 of 31

    • Thermoelastic influence on the performance of film bulk acoustic wave resonators 

      Strømsvold, William (Master thesis, 2009)
      Film Bulk Acoustic wave Resonators (FBAR’s) are a promising new technology for high performance resonators in the GHz-range. FBAR’s can provide higher Q-factors and higher coupling efficency than the typical high performance ...
    • Tuneable RF Filter based on acoustically coupled Ferroelectric Resonators 

      Komini, Vangjush (Master thesis, 2015)
      Tuneable filters are a great solution for wireless telecommunications. Micro-actuators resonators are being employed in different configuration in order to provide a much better selectivity. Ferroelectric materials are the ...
    • Ultra-low power electronics for energy harvesting node 

      Žujović, Aleksandar (Master thesis, 2016)
      Apart from providing detailed insight about the energy harvesting system as a whole, this work tackles the challenges of efficient control of the interface circuit of an electrostatic vibration energy harvester, with ...
    • Ultra-low power electronics for energy harvesting node 

      Phan, Tra Nguyen (Master thesis, 2015)
      There face challenges to build power management circuit for microscale electrostatic vibration energy harvesting. Small capacitance variation limited by standard fabrication process is a common obstacle to obtain sufficient ...
    • Ultrasound Transducer Design for Continuous Fetal Heartbeat Monitoring 

      Rakhmetova, Assel (Master thesis, 2016)
      Stillbirth prevention requires high quality healthcare and early detection. Continuous monitoring of fetal heartbeat can be one of the ways to reduce pregnancy complications and even stillbirths. A Doppler ultrasound ...
    • Ultrasound Transmit-Receive Electronics: Study and Upgrade 

      Shrestha, Sudha (Master thesis, 2014)
      The ultrasonic investigation using transmission of ultrasounds and receiving of the back-scattered echoes is a recognized measurement technology since from the decades. One of the heavy and bulky instrumentation parts in ...