Sökning: "Pertti Vainikainen"
Hittade 4 avhandlingar innehållade orden Pertti Vainikainen.
1. Analysis and Modelling of Joint ChannelProperties from Multi-site, Multi-Antenna RadioMeasurements
Sammanfattning : Future wireless communication systems will utilize the spatialproperties of the wireless channel to improve the spectralefficiency and thus increase capacity. This is realized bydeploying multiple antennas at both the transmitter and receiver. LÄS MER
2. Water content measurement in woody biomass : using dielectric constant at radio frequencies
Sammanfattning : The will for replacement of fossil fuels increased the use of woody biomass as fuel in heating and power plants. An important parameter for the use woody biomass as fuel is the water content of biomass as it influences the heating value and thereby the combustion control and pricing. LÄS MER
3. On Reconfigurable MEMS Antennas and Coupling Matrix Estimation
Sammanfattning : In this thesis, two different topics are treated related to wireless communication. Part I presents three different reconfigurable MEMS integrated antennas for MIMO applications. Simulation and measurement results are presented along with brief discussions on the topic of antenna selection with reconfigurable antenna elements. LÄS MER
4. Propagation environment modeling using scattered field chamber
Sammanfattning : This thesis covers the development of the Reverberation Chamber as a measurement tool for cell phone tests in electronic production. It also covers the development of the Scattered Field Chamber as a measurement tool for simulations of real propagation environments. LÄS MER