Essays about: "mm Wave"

Showing result 31 - 35 of 50 essays containing the words mm Wave.

  1. 31. Investigation of Wide Band mm-Wave Radome

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : Shreyasi Bhowmik; [2017]
    Keywords : ;

    Abstract : “Radome” is a necessary shield for any type of antenna. Itsshape, thickness, mechanical and electrical properties defineits application. This thesis mainly revolves around thetechniques, used for radome analysis in W-band with thehelp of electromagnetic solvers of High Frequency StructureSimulator (HFSS) and CST Microwave Studio. READ MORE

  3. 32. Investigation of phase conjugation for medical imaging

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Atomfysik

    Author : Ivan Sytcevich; [2017]
    Keywords : Phase conjugation; Ultrasound Optical Tomography; Rare-Earth-Doped Crystals.; Physics and Astronomy;

    Abstract : With the development of extremely precise spectral filters based on spectral hole burning and slow light effects, the idea of their implementation in an Ultrasound Optical Tomography (UOT) medical imaging technique arose. Simulations have shown that the resulting Contrast-to-Noise (CNR) ratio is fairly good at depths up to 5 cm but decreases dramatically when probing deeper in tissue. READ MORE

  4. 33. Interplay between capacity and energy consumption in C-RAN transport network design

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Huajun Wang; [2016]
    Keywords : C-RAN; Energy Efficiency; Fronthaul; Power Model; Baseband Splits; Fronthaul Network;

    Abstract : Current mobile network architecture is facing a big challenge as the traffic demands have been increasing dramatically these years. Explosive mobile data demands are driving a significant growth in energy consumption in mobile networks, as well as the cost and carbon footprints [1]. READ MORE

  5. 34. A comparison of 5G candidate waveforms subject to phase noise impairment at mm-wave frequencies

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Vicent Molés Cases; [2016]
    Keywords : ;

    Abstract : Frequencies above 6 GHz are being considered by mobile communication industry for the deployment of future 5G networks. Large channel bandwidths above 6 GHz are likely to be used to serve diverse use cases and meet extreme user requirements. READ MORE

  6. 35. Ray-tracing based analysis of channel characteristics and capacity improvement capabilities of spatial multiplexing and beamforming at 15 and 28 GHz

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Qingbi Liao; [2016]
    Keywords : 5G; 15 GHz; 28 GHz; beamforming; capacity; channel multiplexing richness; hybrid beamforming; MIMO; mm-Wave; ray-tracing; spatial multiplexing; Technology and Engineering;

    Abstract : In the previous decades, mm-Wave frequency bands have largely been ignored for cellular communication because of the high free space attenuation as well as the cost and complexity of mm-Wave RF circuits. However, with the improvement of RF and antenna technologies over the last decade, it has become feasible to con- sider mm-Wave bands for cellular communications. READ MORE