Sökning: "Sub-array"

Hittade 5 uppsatser innehållade ordet Sub-array.

1. 1. Scann Loss Reduction on Phased Array Antenna

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

   Författare :Wanyu Zhang; [2022]
   Nyckelord :Phased Array Antenna; Vivaldi Antenna; Scan Loss; Coverage Angle; Sub-array; Embedded Radiation Pattern; Fasad Array Antenn; Vivaldi Antenn; Skanningsförlust; Täckningsvinkel; Sub-array; Inbyggt strålmönster;

   Sammanfattning : Phased array antennas with small size and light weight are proposed to make signal transmitting more efficiently and accurately. These antennas have such advantages that they can realize beam scanning over a large range, accurately track and identify targets within the observation range. LÄS MER

3. 2. Antenna Design and Link Performance Verification of Antennas for 5G mmWave Handheld Devices

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Vinodhini Mylai Chandrasekaran; Nikhila Chinnayanapalli Ravi; [2022]
   Nyckelord :Antenna Design; mmWave frequency; 5G; FEKO; Technology and Engineering;

   Sammanfattning : The purpose of the thesis is to design a new antenna system and to verify its link performance in 5G FR2 mmWave frequency for handheld devices to enable cellular communication. The main objective is to design an antenna primarily at 28GHz and 39GHz to enhance spectrum efficiency, along with improved transmission data rates, enabling new cases like Augmented Reality (AR), Virtual Reality (VR) and many more such applications. LÄS MER

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

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för elektroteknik

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

   Sammanfattning : 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. LÄS MER

5. 4. A Comprehensive PV Systems Installation Guide and Designing a Roof-Based PV System as a Demonstration System for Troubleshooting Errors in PV systems Installations

   Master-uppsats, Högskolan Dalarna/Energiteknik

   Författare :Ahmed Hathout; [2018]
   Nyckelord :;

   Sammanfattning : The purpose of the thesis was to make a comprehensive guide for PV systems installers and engineers, using the best practices and following the applicable regulations and standards for the mechanical and electrical installations of PV systems. The guide includes all the different aspects of a PV system installation including different types of roofs and mounting structures, fire safety, height safety and fall protection, installation precautions, electrical and mechanical installations, safety gears and finally system commissioning. LÄS MER

7. 5. Design of a Novel Flat Array Antenna for Radio Communications

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Tahir Mehmood; Yu Yun; [2011]
   Nyckelord :Slotted Waveguide Array Antenna; Flat Array Antennas; Microwave communication;

   Sammanfattning : In mobile microwave communication, reflector antennas have widely been used for very long time. Flat array antennas which have very rigid structure are being used in satellite communication, radar and airborne applications. These antennas are relatively smart in size and have more rigid structure than reflector antennas. LÄS MER