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Visar resultat 1 - 5 av 59 avhandlingar som matchar ovanstående sökkriterier.
1. Analysis of slotted waveguide antennas
Sammanfattning : .... LÄS MER
2. Direction finding in the presence of mutual coupling
Sammanfattning : .... LÄS MER
3. Direction finding, beamforming and mutual coupling in base station antenna arrays
Sammanfattning : .... LÄS MER
4. Cylindrical Waveguide Slot Antenna Analysis
Sammanfattning : Waveguide slot antennas with longitudinal and transverse slots are analyzed using a rigorous method. The antennas are divided into regions, which are analyzed separately and matched by a moment method procedure. At the apertures between the regions, the electric fields are expanded in trigonometric basis functions. LÄS MER
5. Study of Mutual Coupling in Finite Antenna Arrays for Massive MIMO Applications
Sammanfattning : This thesis focuses on the study of mutual coupling (MC) in finite antenna arrays for base station antennas (BSAs) for Massive multiple-input multiple-output (MIMO) applications, with an emphasis on the development of a computationally-efficient modeling technique for the analysis of MC which can be readily applied in the design or synthesis schemes for BSAs. Traditionally, the effects of MC have been ignored or underestimated in the analyses performed within the information-theoretic-based communities by assuming idealized antenna elements with no MC between them or by considering the fictitious isotropic radiator models. LÄS MER