Browsing Institutt for elektroniske systemer by Subject "SIE6 elektronikk"
Now showing items 61-80 of 94
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Design and Characterization of a 6 W GaN HEMT Microwave Power Amplifier with Digital Predistortion Linearization
(Master thesis, 2011)In this thesis, characterization of a 6W GaN HEMT power amplifier for optimal operating conditions through load pull simulations and measurements is investigated.The purpose is to find source and load impedances to achieve ... -
Design av 10 Watt effektforsterker for 5.8GHz
(Master thesis, 2008)Hovedmålet med denne oppgaven var å designe en 10 Watts pulset effektforsterker for bruk på 5.8GHz. Rapporten forklarer først viktige begreper og teori for bruk i forsterkerdesign. Videre blir det forklart hvordan ... -
Design av PCB antenne for 433 MHz
(Master thesis, 2008)I denne oppgaven studerte man design av integrert antenne for 433 MHz. Det ble valgt å designe en invertert-F-antenne for bruk i røykvarsler produsert av ICAS AS. Invertert-F-antenne har den fordelen over monopolen at ... -
Design of a 5.8 GHz Multi-Modulus Prescaler
(Master thesis, 2006)A 64-modulus prescaler operating at 5.8 GHz has been designed in a 0.18 μm CMOS process. The prescaler uses a four-phase high-speed ÷4 circuit at the input, composed of two identical cascaded ÷2 circuits implemented in ... -
Design of a high IIP2 2.4GHz RF Front-end
(Master thesis, 2006)This master thesis presents the design of a high IIP2 direct-conversion receiver front-end, consisting of a LNA and I- and Q-channel mixers. The front-end is implemented in a 0.18 μm technology with 1.8V supply voltage. ... -
Design of a low-cost CC-VFC for one-celled Li-Ion batteries
(Master thesis, 2007)The Lithium-ion battery is today used by close to every portable battery powered device, and this marked is constantly increasing because not only are the products the consumer have had for years getting more and more ... -
Design of ground station antenna for a double CubeSat student project
(Master thesis, 2007)Give an introduction to the proposed double CubeSat system and an overview of communication requirements and the propagation characteristics that influence the link budget. Based on the above findings, derive requirements ... -
Design of Waveguide Cavity Filters for Ku-band Satellite Applications
(Master thesis, 2007)In this master's thesis several waveguide cavity filters are designed and simulated and three of them are constructed, two third order and one fifth order filter. One third order filter is fabricated in brass, and the two ... -
Design og testing av en push-pull effektforsterker for en dobbel cubesat på 145 MHz
(Master thesis, 2009)I prosjektet høsten 2008 ble det designet en effektforsterker på 145 MHz for en dobbel cubesat. Arbeidet med forsterkeren fortsatte i denne oppgaven, der det har blitt designet tilpasningsnettverk henholdsvis for størst ... -
Deteksjon av myokard iskemi i biomedisinske signaler ved bruk av treakset akselerometer
(Master thesis, 2007)På Rikshospitalet foregår det et prosjekt der det brukes tredimensjonale akselerometersensorer for å overvåke ulike regioner i hjertet. Antagelsene deres er at bevegelsesmønsteret i disse regionene kan klassifisere ... -
Fiber optic probes for biomedical optical spectroscopy
(Master thesis, 2008)Optical spectroscopy has been well validated by the physical sciences as a method to characterize chemical compositions in biological material. It has also showed promising to detect atherosclerotic plaques, which can form ... -
Finite Element Modeling of Piezoelectric Ultrasonic Transducers
(Master thesis, 2011)The optimization of piezoelectric ultrasonic transducers has tradisionally been done through trial and error, somewhat guided by one-dimentional simulations. This can often be a very time-consuming and expensive process, ... -
Hardware Based LDLT Decomposition For Large Matrices
(Master thesis, 2010)Market demands forces designers and engineers to develop more advanced products quicker and at lower prices. Computer simulations is one way of increasing development speed, thereby lowering the time spent verifying and ... -
Hardware-software intercommunication in reconfigurable systems
(Master thesis, 2010)In this thesis hardware-software intercommunication in a reconfigurable system has been investigated based on a framework for run time reconfiguration. The goal has been to develop a fast and flexible link between applications ... -
Hearing Aid for Social Situations
(Master thesis, 2007)Conventional hearing aids perform badly in environments with reverberation and noise. In this paper the use of microphone arrays as hearing aids to increase directivity and signal-to-noise ratio (SNR) in a noisy environment ... -
How to plan an Everyday Life with less Noise Pollution
(Master thesis, 2008)In this master thesis a software, MapMonit, that use real measurement data as a basis to calculate noise maps was studied. The project focus on noise from roads. Simulations in MapMonit based on measurements were compared ... -
Linearizing a Power Amplifier Using Predistortion
(Master thesis, 2009)Linear power amplication is important in radio communications to achieve high bitrates. Strong regulations of the frequency spectrum force manufacturers to use complex modulation schemes to increase the capacity. More ... -
Localising Noise Transmitters or Jammers in the UHF band with focus on GPS and Communications Systems
(Master thesis, 2010)Detecting and localising noise transmitters in the UHF band implicate difficulties because a great amount of reflectionsand diffractions occur. As one can see inthe theory part, predicting a precise propagation path to an ... -
Low-power microcontroller core
(Master thesis, 2009)Energy efficiency in embedded processors is of major importance in order to achieve longer operating time for battery operated devices. In this thesis the energy efficiency of a microcontroller based on the open source ZPU ... -
Måling av lavfrekvent utstråling fra scenegulv
(Master thesis, 2009)Kontrabassens laveste egenfrekvens er rundt 60 Hz, men enkelte kontrabasser kan spille toner helt ned til 30,8 Hz. Hvis det skal utstråles lyd i området 30 til 60 Hz må det derfor i hovedsak foregå ved overføring av energi ...