Sökning: "RF power amplifier"
Visar resultat 21 - 25 av 59 avhandlingar innehållade orden RF power amplifier.
21. Wideband Watt-Level Spatial Power-Combined Power Amplifier in SiGe BiCMOS Technology for Efficient mm-Wave Array Transmitters
Sammanfattning : The continued demand for high-speed wireless communications is driving the development of integrated high-power transmitters at millimeter wave (mm-Wave) frequencies. Si-based technologies allow achieving a high level of integration but usually provide insufficient generated RF power to compensate for the increased propagation and material losses at mm-Wave bands due to the relatively low breakdown voltage of their devices. LÄS MER
22. Characterisation, Modelling and Digital Pre-DistortionTechniques for RF Transmitters in Wireless Systems
Sammanfattning : Wireless systems have become an inevitable part of modern technologies serving humankind. The rapid growth towards large dimensional systems, e.g. LÄS MER
23. Linearization of High Efficiency Transmitters for Wireless Communications
Sammanfattning : In recent years, reducing energy consumption in wirelesscommunication systems has gained prominence. In order to achieve this energy saving, high power efficiency is necessary for the wireless transmitters used. LÄS MER
24. Design and Analysis of Highly Linear Integrated Wideband Amplifiers
Sammanfattning : This dissertation deals with techniques for designing integrated amplifiers with high linearity. Amplifiers with operating frequencies from Audio to RF have been built. An enhanced feedback configuration, capable of very low distortion, is presented. LÄS MER
25. High-Temperature Radio Circuits in Silicon Carbide Bipolar Technology
Sammanfattning : High-temperature electronics find many niche applications in downhole drilling, aviation, automotive and future exploration of inner planets like Venus and Mercury. Past studies have shown the potential of silicon carbide (SiC) electronics for catering these extreme temperature applications. LÄS MER