Search for dissertations about: "HEMT"
Showing result 21 - 25 of 75 swedish dissertations containing the word HEMT.
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21. Nonlinear Characterization of Wideband Microwave Devices and Dispersive Effects in GaN HEMTs
Abstract : Measurements play a key role in the development of microwave hardware as they allow engineers to test and verify the RF performance on a system, circuit, and component level. Since modern cellular standards employ complex modulation formats with wider signal bandwidths to cope with the growing demand of higher datarates, nonlinear characterization using wideband stimuli is becoming increasingly important. READ MORE
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22. Design and Characterization of MMIC IF VGA and Small Signal CMOS Millimeter Wave Amplifiers
Abstract : The main aim of this work is to demonstrate the easibility of designing and characterizing monolithic microwave integrated circuit (MMIC) variable gain amplifiers (VGA) and small signal amplifiers in III-V (GaAs) and 90 nm CMOS technologies, respectively. The VGA is studied at the IFfrequency of 2. READ MORE
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23. Instrumental and observational studies in radio astronomy : low noise amplifier design and methanol maser research
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24. Cryogenic low noise amplifiers for microwave frequencies
Abstract : .... READ MORE
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25. GaN HEMT Low Frequency Noise Characterization for Low Phase Noise Oscillator Design
Abstract : The thesis presents low frequency noise (LFN) characterization of Gallium Nitride (GaN) High Electron Mobility Transistors (HEMTs) for low phase noise oscillator design. First, GaN HEMT technology is benchmarked versus other transistor technologies, e.g. READ MORE