Sökning: "Antenna element"
Visar resultat 1 - 5 av 61 avhandlingar innehållade orden Antenna element.
1. Embedded Element Patterns in Combination with Circuit Simulations for Multi-Port Antenna Analysis
Sammanfattning : This thesis is a result from work on two different subjects, electromagnetic simulations of reverberation chambers and a methodology for the analysis of multi-port antennas. The subjects can be linked together by their contribution to knowledge in electromagnetic simulations and characterization of antennas. LÄS MER
2. Investigating and Enhancing Performance of Multiple Antenna Systems in Compact MIMO/Diversity Terminals
Sammanfattning : Today, owners of small communicating device are interested in transmitting or receiving various multimedia data. By increasing the number of antennas at the transmitter and/or the receiver side of the wireless link, the diversity/Multiple-Input Multiple-Output (MIMO) techniques can increase wireless channel capacity without the need for additional power or spectrum in rich scattering environments. LÄS MER
3. Optimizing microwave hyperthermia antenna systems
Sammanfattning : This thesis presents design and optimization of a microwave hyperthermia antenna system for treatment of head and neck cancer as well as brain cancer. Hyperthermia has shown the ability to enhance the performance of radiotherapy and chemotherapy in many clinical trials. LÄS MER
4. A hybrid finite element method for electromagnetics with applications in time-domain
Sammanfattning : In this thesis, a new hybrid method that combines the Finite Element Method (FEM) with the Finite-Difference in Time-Domain (FDTD) method is presented. Tetrahedrons in the unstructured FEM region are connected directly to thehexahedrons in the structured FDTD region. LÄS MER
5. Embedded Element Patterns in Combination with Circuit Simulations for Multi-Port Antenna Analysis : Departmet of Signals and Systems, Antenna Group. Chalmers University of Technology
Sammanfattning : .... LÄS MER