Essays about: "Beam-steering"

Showing result 1 - 5 of 12 essays containing the word Beam-steering.

1. 1. Beam-steered Modulation in Advanced Antenna System

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

   Author : Smitha Jinnahalli Venugopal; [2023]
   Keywords : 5G-MIMO; Beam-forming; Beam-steering; Advanced antenna systems; Technology and Engineering;

   Abstract : The newer spectral bands in millimeter-wave (mm-Wave) spectrum over the last few years have made higher data rates possible and improved quality of service for the users, but it possesses new challenges to design spectral agile radios. Power Amplifiers (PA) are a crucial analog component connected to Multiple input multiple output (MIMO) antennas which inherits non-linear effects. READ MORE

3. 2. Electrically Steerable Phased-Arrays for 5G Sub-6 GHzMassive MIMO Active Antenna Units : Re-configurable Feed Networks

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Johan Kövamees; [2020]
   Keywords : Electrically Steerable Phased-Arrays for 5G Sub-6 GHz Massive MIMO Active Antenna Units;

   Abstract : During this project we have designed a new type of antenna that uses an array of antenna elements in order to emit electromagnetic radiation as signals and to be able to control the beam. After an extended time the design yielded a simulation which had the correct characteristics. READ MORE

4. 3. Development and tests of SONAR array for underwater communication

   University essay from KTH/Marina system

   Author : Marcus Hellman; [2020]
   Keywords : ;

   Abstract : Water covers about 70 % of Earth’s surface. Most of the water is located in the ocean’s, which have an average depth of almost 3700 meters. This implies that there is a multitude of phenomena to investigate and discover. But due to human limitations other methods and tools need to be considered in order to investigate the depths. READ MORE

5. 4. Low-dispersive Leaky-wave Antennas: A Viable Approach for Fifth Generation (5G) mmWave Base Station Antennas

   University essay from KTH/Elektroteknisk teori och konstruktion

   Author : Oskar Dahlberg; [2019]
   Keywords : ;

   Abstract : In this work, a method to achieve reduced beam-squint in fully metallic leaky-wave antennas is proposed and its applicability for high frequency, high gain, base station antennas in future communication networks is indicated. The antenna is built in gap waveguide technology, where the fundamental mode is allowed to leak by removal of one of the waveguide walls. READ MORE

6. 5. Probability of Positive Identification with an IFF E-scan System

   University essay from Uppsala universitet/Fasta tillståndets elektronik

   Author : Tora Lutnaes; [2018]
   Keywords : ;

   Abstract : Both military and civil aircrafts depend on a built-in identification system called SSR on a daily basis. IFF is the military adaption of the system for use by fighter jets in order to separate friendly aircrafts from foes but also to coexist with commercial aircrafts. READ MORE