Search for dissertations about: "load modulation"
Showing result 1 - 5 of 46 swedish dissertations containing the words load modulation.
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1. Analytical Approaches to Load Modulation Power Amplifier Design
University dissertation from ; Chalmers tekniska högskola; GothenburgAbstract : In future mobile communication networks, there will be a shift toward higher carrier frequencies and highly integrated multiple antenna systems. The system performance will largely depend on the available radio frequency (RF) hardware. As such, RF power amplifiers (PAs) with improved performance, e.g. READ MORE
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2. SiC Varactors for Dynamic Load Modulation of Microwave Power Amplifiers
University dissertation from ; Chalmers tekniska högskola; GothenburgAbstract : The rapid consumer adoption of mobile services is leading to an exponential growth in wireless data traffic. In order to accommodate more concurrent high data-rate users, the required complexity of transmitting radio base station (RBS) power amplifiers (PAs) is increasing. READ MORE
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3. High Efficiency Microwave Amplifiers and SiC Varactors Optimized for Dynamic Load Modulation
University dissertation from ; Chalmers tekniska högskola; GothenburgAbstract : The increasing use of mobile networks as the main source of internet connectivity is creating challenges in the infrastructure. Customer demand is a moving target and continuous hardware developments are necessary to supply higher data rates in an environmentally sustainable and cost effective way. READ MORE
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4. High efficiency power amplifiers for wireless communications
University dissertation from ; Chalmers tekniska högskola; GothenburgAbstract : This thesis presents state-of-the-art high efficiencyharmonically-tuned power amplifiers (PAs) and investigates thecharacteristics and potentials of such amplifiers in two of the mostpromising efficiency enhancement techniques, dynamic supply and load modulation.In this work, a 10 W LDMOS harmonically-tuned PA with 80% power-added-efficiency (PAE) isrealized at 1 GHz. READ MORE
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5. High-efficiency Power Amplification Techniques for Wireless Transmitters
University dissertation from ; Chalmers tekniska högskola; GothenburgAbstract : The low efficiency of existing power amplifiers (PAs) is causing excessive energy consumption in wireless systems. Improving the PA efficiency is therefore of great environmental and economical importance. READ MORE
