Essays about: "riktade antenner"

Found 5 essays containing the words riktade antenner.

1. 1. Millimeter-Wave Pencil Beam Leaky-Wave Antenna

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Tom Eriksson; Erik Westberg; [2021]
   Keywords : Leaky-wave antenna LWA ; Continuous transverse stubs CTS ; Parallel plate waveguide PPW ; Dispersion;

   Abstract : Moving into higher frequencies, in occurrence withmodern applications, poses the issue of higher attenuation ofelectromagnetic waves, which in turn demand more directiveantennas. This paper proposes a directive antenna designoperating at 30GHz based on leaky-wave technology. Themodel consists of two main components. READ MORE

3. 2. Interference Aware Distributed Network Formation with Reinforcement Learning

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Berkcan Okur; [2021]
   Keywords : distributed; network formation; topology formation; reinforcement learning; multi-agent; distribuerad; nätverksbildning; topologibildning; förstärkande inlärning; multiagent;

   Abstract : Ad-hoc networks suffer from dynamicity due to mobility of the nodes or node addition/removal to/from the system. This means, the formed topology may not be connected anymore or better topologies can be found as time passes if the position of the nodes changes or some nodes in the network is broken. READ MORE

4. 3. Remote Control of Forest Machinery Using WiFi

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Michal Tomaszuk; [2019]
   Keywords : WiFi; IEEE 802.11; propagation in forests; directional antennas; antenna alignment; WiFi; IEEE 802.11; strålning i skog; riktade antenner; antennorientering;

   Abstract : Automation of the forest industry has for over 30 years been an important subject of research, which could reduce the human workload and costs significantly. However, there are still many problems to be solved, such as enabling the communication between the heavy machinery in a forest and a remote base. READ MORE

5. 4. Beamforming Solutions for Efficient Link Setup and Link Maintenance in mmWave Communication Systems

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

   Author : Hesham Sharkas; Haruhi Echigo; [2019]
   Keywords : 5G; Beamforming; Beam-forming; Beam Management; Beam Searching; Beam Sweeping; Codebook; code-book; Initial Access; MIMO; MillimeterWave; millimeter wave; mmWave; mm-Wave; mm Wave; Precoding; Slepian Beam; Synthesizer; Beam Synthesizer; Technology and Engineering;

   Abstract : Millimeter wave (mmWave band) technology has gained a lot of attention in 5G communications, due to large amounts of spectrum being available in the mmWave frequency range. However, mmWave links suffer from severe free-space loss and atmospheric absorption. READ MORE

6. 5. Design and Evaluation of V/UHF Satellite Communication Antennas for Naval Applications

   University essay from KTH/Elektroteknisk teori och konstruktion

   Author : Hampus Bäckström; [2018]
   Keywords : Antenna design; Antenna simulations; QHA; Submarine communication; SatCom; MUOS; Legacy; Antenndesign; Antennsimulering; QHA; Ubatskommunikation; Satellitkommunikation; MUOS; Legacy;

   Abstract : In this master thesis, compact antenna design aimed towards naval applicationshave been designed, analyzed and evaluated. There is a recentinterest in the development of compact antennas to be used for smallersubmarine models, and with a smaller hull on a submarine, communicationand antenna systems must be adapted and minimized, which limitsantenna design. READ MORE