Search for dissertations about: "high voltage multiplier"

Showing result 1 - 5 of 7 swedish dissertations containing the words high voltage multiplier.

2. 1. Heterostructure Barrier Varactors for High Efficiency Frequency Multipliers

   Author : Lars Dillner; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; frequency multiplier; Heterostructure Barrier Varactor HBV ; millimeter wave; submillimeter wave; power source;

   Abstract : This thesis describes the Heterostructure Barrier Varactor (HBV) and its application in frequency multipliers. Different HBV materials, fabrication processes, and device models are presented. The aim of this work is to improve the efficiency of HBV frequency multipliers. READ MORE

4. 2. Heterostructure Diodes for Millimeter Wave Power Generation

   Author : Hans Grönqvist; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Single barrier varactor diode; AlSb barrier; InAs substrate; high frequencies; Resonant Tunneling Diode;

   Abstract : This thesis deals with two types of heterostructure diodes namely the Resonant Tunneling Diode (RTD) and the Single barrier varactor diode (SBV). The RTD is a device for high frequency generation either as a negative reistance oscillators or as a multiplier. Different means to reach high frequencies are outlined. READ MORE

5. 3. Implementation of digit-serial filters

   Author : Magnus Karlsson; Mark Vesterbacka; Lars Wanhammar; Wlodek Kulesza; Viktor Öwall; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Implementation; CMOS; Low Power; High Speed; Wave Digital Filter WDF ; FIR filter; Signal processing; Signalbehandling;

   Abstract : In this thesis we discuss the design and implementation of Digital Signal Processing (DSP) applications in a standard digital CMOS technology. The aim is to fulfill a throughput requirement with lowest possible power consumption. READ MORE

6. 4. Experimental Verification of Superconductor Digital Circuits

   Author : Henrik Engseth; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heatload; MCM; high frequency test; RSFQ; Superconductivity;

   Abstract : Superconducting digital technology based on Rapid Single Flux Quantum logic (RSFQ) offers more than 50 times advantages in speed and $100$ times less power consumption than today's mainstream semiconductor electronics. This technology is attractive for many applications and in particular for Digital Signal Processing (DSP) for multi-user detection in a 3G wireless systems being developed at Chalmers University. READ MORE

7. 5. The Jovian Plasma Dynamics and Composition Analyzer (JDC) for ESA's JUICE Mission

   Author : Philipp Wittmann; Martin Wieser; Stas Barabash; Krister Wiklund; Frédéric Allegrini; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; JUICE mission; positive ions; negative ions; electrons; time-of-flight; time-of-arrival; PEP; JDC; CEM; channel electron multiplier; pressure; instrument development; calibration; TOF; TOA; fysik; Physics; rymd- och plasmafysik; Space and Plasma Physics;

   Abstract : This dissertation covers the development and calibration of the Jovian plasma Dynamics and Composition analyzer (JDC). JDC is together with five other sensors a part of the Particle Environment Package (PEP), one of the payloads of the European Space Agency's JUpiter ICy moons Explorer (JUICE) mission. READ MORE