Sökning: "anechoic chamber"
Visar resultat 11 - 15 av 27 uppsatser innehållade orden anechoic chamber.
11. 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 elektroteknikSammanfattning : 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
12. Near-Field Measurement System for 5G Advanced Antenna System at mm-Wavelength
Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknikSammanfattning : An antenna is one of the most fundamental elements of wireless communication systems. The radiation behavior of antennas is characterized with the aid of the farfield radiation pattern. In this thesis, a near-field antenna measurement system is designed to predict the far-field pattern of antenna operational frequency 28 GHz and 39 GHz. LÄS MER
13. Reliability of discerning humans using microwave polarisation and diffraction phenomena
Master-uppsats, Mälardalens högskola/Akademin för innovation, design och teknikSammanfattning : Presented here is an examination of the feasibility to utilise basic microwave phenomena for reliable human discernment. Being able to distinguishing a person from other objects is essential around society. For example, near railway tracks where lives could be saved if a system could alert the driver. LÄS MER
14. A Novel and an Efficient Design of an Inverted F-Antenna for Bluetooth Low Energy Communications
Magister-uppsats, Högskolan i Halmstad/Akademin för informationsteknologiSammanfattning : Constantly, antenna plays an important role in expanding the wireless communication systems in different technology applications for example, but not limited to, IoT communications and automotive radar systems. On the other hand, the Bluetooth-Low-Energy (BLE) benefits different sorts of applications, as it offers (i) a very low power consumption, (ii) a very fast data transfer, (iii) and an inexpensive/efficient solution as well. LÄS MER
15. Doppler Wheel for Emulation of Automotive Radar Target
Magister-uppsats, Högskolan i Halmstad/Akademin för informationsteknologiSammanfattning : Automotive radar is an emerging field of research and development. Technological advancements in this field will improve safety for vehicles, pedestrians, and bicyclists, and enable the development of autonomous vehicles. Usage of the Automotive radar is expanding in car and road areas to reduce collisions and accident. LÄS MER