Essays about: "Far-Field"
Showing result 1 - 5 of 45 essays containing the word Far-Field.
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1. Antenna measurements of HF antennas using low cost UAVs
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : High-frequency signal far-field measurement systems usually involve the use of complex and expensive equipment, since the measurements must be made at a distance of multiple wavelengths from the antenna. Helicopter surveyors are commonly utilized. READ MORE
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2. Ray Tracing Algorithm for Dielectric Domes
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Almost hemispherical scanning capabilities are required for modern wireless communication systems to produce broad coverage without performance degradation. Phased array antennas are commonly used as a fully-electronic beam-steering solution for its rapidity in beam switching. READ MORE
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3. Near Field millimeter Wave Antenna Measurements
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : In the real world, understanding an antenna's radiation pattern is crucial for its proper utilization. Typically, antennas are tested in the far-field region, where the radiation lobes are fully developed and phase errors are less than pi/8. READ MORE
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4. Analysis and Measurement of Key Performance Indicators for MIMO Antennas
University essay from Umeå universitet/Institutionen för fysikAbstract : Multiple-in multiple-out (MIMO) is a wireless communication technique where antenna arrays, at the receiver and transmitter, utilize signal multipath propagation to increase data throughput capacity. The unique benefits MIMO provides have over the last 20 years led to the steady increase in usage in both Wi-Fi and mobile networks. READ MORE
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5. 3D Printed Modulated Geodesic Lens Antenna With Even Coverage in the Far-Field
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : The development of 5G and 6G entails new demandson antennas. This includes fast and reliable connections to a largenumber of devices. A wider area of coverage, and thus moreantennas are also expected, which is problematic for the expensiveantennas used today. To meet those demands, a geodesic lensantenna has been proposed. READ MORE