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Found 4 essays matching the above criteria.
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1. Hybrid Coupler for LMBA Input Match Using an Active Inductor
University essay from Linköpings universitet/Elektroniska Kretsar och SystemAbstract : With the increase in demand for compact and high data rate communication systems, there is a need for high efficiency with modulated signals (PAPR 5-10 dB) for base-station power amplifiers. One of the famous architectures used to achieve this is Doherty architecture. READ MORE
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2. Design of Two 28 GHz Doherty Power Amplifier Topologies with Vertical In(Ga)As Nanowire Transistors
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : In this Master’s thesis, two different 28 GHz Doherty power amplifiers (DPAs) are designed, for high power added efficiency (PAE), in the common source (CS) and cascoded topology respectively. The results are analyzed and compared between the two approaches. READ MORE
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3. Highly Integrated Wideband Doherty Power Amplifier
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : The objective of this thesis project was to design a wide band Doherty Power Amplifier (DPA) using bare die transistors. Different techniques had been applied in this thesis to make a DPA wide band while maintaining its efficiency and power. READ MORE
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4. Design and Implementation of as Asymmetric Doherty Power Amplifier at 2.65 GHz in GaN HEMT Technology
University essay from Elektroniska komponenter; Tekniska högskolanAbstract : Power amplifiers are an indispensible part of the wireless communication systems. Conventional PAs provide peak efficiency at peak output power which is obtained at a certain fixed optimum resistance. These kind of amplifiers are normally called switched-mode power amplifiers (SMPAs) and are used for constant envelope signals. READ MORE