Sökning: "infinite arrays"
Visar resultat 1 - 5 av 14 avhandlingar innehållade orden infinite arrays.
1. Polarization diversity and array signal processing in base station antennas
Sammanfattning : .... LÄS MER
2. Analysis of Conformal Antennas and Periodic Structures
Sammanfattning : In the last decades much attention has been paid to the design of high-performance antennas. Accurate control of the radiation properties is very important in electromagnetic engineering applications. LÄS MER
3. Analysis and Design of Base Station Antennas for Mobile Communications
Sammanfattning : The thesis deals with base station antennas and the environment they work in. Polarization diversity, dual band operation, and adaptive antenna systems are discussed with emphasis on how antennas for these applications should be designed. We compare the polarization diversity performance of different types of dual polarized antenna elements. LÄS MER
4. Electrodeposition of Ag/Co and Au/Co compositionally modulated thin films and nanowire arrays
Sammanfattning : In the past decade, electrochemical synthesis of metallic nanowires within the pores of porous membranes have attracted considerable attention because of their special optical, electronic, and magnetic properties as well as potential for nanotechnological applications. The concept of using membranes as a template for fabrication of metallic nanowires by electrodeposition is considered as an alternative solution to overcome the difficulty of fabricating fibrils with very small diameters by lithographic methods. LÄS MER
5. Some matters of great balance
Sammanfattning : This thesis is based on four papers dealing with two different areas of mathematics.Paper I–III are in combinatorics, while Paper IV is in mathematical physics.In combinatorics, we work with design theory, one of whose applications aredesigning statistical experiments. LÄS MER