Search for dissertations about: "Power amplifier"
Showing result 1 - 5 of 161 swedish dissertations containing the words Power amplifier.
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1. SiC Varactors for Dynamic Load Modulation of Microwave Power Amplifiers
Abstract : 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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2. Analytical Approaches to Load Modulation Power Amplifier Design
Abstract : 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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3. Digital Predistortion for the Linearization of Power Amplifiers
Abstract : High efficiency and linearity are indispensable requirements of power amplifiers. Unfortunately they are difficult to obtain simultaneously, since high efficiency PAs are nonlinear and linear PAs may have low efficiency. READ MORE
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4. Efficient and Wideband Power Amplifiers for Wireless Communications
Abstract : The rapid evolution of wireless communication systems and the developmentof new standards require that wireless transmitters process several types ofstandards across multiple bands. Power amplifiers (PAs) are key componentsin wireless transmitters because they have a big impact on the overall systemperformance in terms of their bandwidth, efficiency, and linearity. READ MORE
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5. Millimeter-Wave Active Array Antennas Integrating Power Amplifier MMICs through Contactless Interconnects
Abstract : Next-generation mobile wireless technologies demand higher data capacity than the modern sub-6 GHz technologies can provide. With abundantly available bandwidth, millimeter waves (e.g., Ka/K bands) can offer data rates of around 10 Gbit/s; however, this shift to higher frequency bands also leads to at least 20 dB more free-space path loss. READ MORE