Sökning: "15 GHz"

Visar resultat 16 - 20 av 42 uppsatser innehållade orden 15 GHz.

1. 16. A 3D-printed Fat-IBC-enabled prosthetic arm : Communication protocol and data representation

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

   Författare :Johan Engstrand; [2020]
   Nyckelord :prosthetic arm; bionic arm; 3D-printing; intra-body communication; ibc; fat tissue; fat-ibc; arduino; xbee; 802.15.4; cobs; cobs r; packet loss; serial transmission; armprotes; 3D-utskrift; intrakroppslig kommunikation; fettvävnad; paketförlust; seriell överföring;

   Sammanfattning : The aim of this thesis is to optimize the design of the Fat-IBC-based communication of a novel neuroprosthetic system in which a brain-machine interface is used to control a prosthetic arm. Fat-based intra-body communication (Fat-IBC) uses the fat tissue inside the body of the bearer as a transmission medium for low-power microwaves. LÄS MER

3. 17. Investigating Optical-Field-Induced Currents in GaN using Ultrafast Lasers

   Magister-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Författare :Vidar Flodgren; [2019]
   Nyckelord :GaN; gallium nitride; nanoscience; material science; ultrafast lasers; Yb Laser; Pharos Laser; titanium sapphire laser; device fabrication; lift-off; gold etching; optical-field-induced currents; modelling; matlab; Physics and Astronomy;

   Sammanfattning : This study saw the development of an experimental setup capable of generating and measuring optical-field-induced currents in a variety of nanodevices fabricated specifically for this project. Each device design features two metallic contacts, closely separated by about 5 micrometers, deposited onto a semiconductor or insulator substrate. LÄS MER

4. 18. Coexistence Between BLE and IEEE 802.15.4 Networks

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Jasper Lustig; [2018]
   Nyckelord :IoT; BLE; IEEE 802.15.4; Coexistence; Interference; Mitigation; CCA; IoT; BLE; IEEE 802.15.4; Coexistence; Interference; Mitigation; CCA;

   Sammanfattning : As increasingly more IoT devices are being deployed simultaneously in the dense 2.4 GHz ISM band, interference could start occurring. BLE, and IEEE 802.15. LÄS MER

5. 19. Channel Characteristics Variations from Switching Between Narrow Beams

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Oscar Lundberg; [2017]
   Nyckelord :5G; radio waves; telecommunication; antennas; beam forming;

   Sammanfattning : The demand for higher throughput and lower latency in telecommunication systems is growing. Upcoming telecommunication systems will operate at higher frequencies (above 15 GHz) compared with previous systems (below 6 GHz). LÄS MER

7. 20. Analysis of 5G Mobile Broadband Solutions in Rural and Remote Areas : A Case Study of Banten, Indonesia

   Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Författare :Annisa Sarah; [2017]
   Nyckelord :5G; beamforming; case study; rural area; system level simulation; rural communication; carrier aggregation; 5G; strålformning; fallstudie; landsbygdsområde; systemnivå simulering; landsbygdskommunikation; bärare aggregering;

   Sammanfattning : Providing a broadband access anytime and anywhere is one of the visions of the future 5G network. However, deploying a reliable network connection in remote/rural areas has been a challenging task because of its wide area that needed to be covered and a low density of user compared to urban area. LÄS MER