Search for dissertations about: "transistor HBT"

Showing result 1 - 5 of 19 swedish dissertations containing the words transistor HBT.

2. 1. Nonlinear transistor models for microwave and millimeterwave circuits

   Author : Lars Bengtsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-linear model; MESFET; volterra series; HBT; nonlinear simulation; HEMT; BJT; HFET; physical model; power spectrum measurement; harmonic balance;

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4. 2. Silicon Germanium heterojunction bipolar transistors : Large-signal modeling and low-frequency noise characterization aspects

   Author : Staffan Bruce; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Silicon Germanium; SiGe; Heterojunction Bipolar Transistor; HBT; Large-signal modeling; thermal time constant; low-frequency noise: coherence; transimpedance amplifier; Materialvetenskap; Materials science; Teknisk materialvetenskap; Elektronik; Electronics;

   Abstract : In this thesis, aspects of the Silicon Germanium (SiGe) Heterojunction Bipolar Transistor (HBT) are addressed. A physics-based electrical large-signal model including thermal dependence has been developed and is implemented using a commercially available simulator package. READ MORE

5. 3. Low phase noise voltage controlled micro- and millimeter wave oscillators

   Author : Stefan Andersson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; radio; anti series; microstrip resonator; silicon bipolar transistor; amplitude limiter; cavity resonator; varactor; transposed gain; MESFET; automatic gain control; VCO; delay line; laser; RF; oscillation criteria; millimetre wave; oscillator; mm-wave; noise; multiplier; fibre optic; SAW; DRO; PLL; surface acoustic wave; Si BJT; 1 f noise; FM noise; HEMT; clipping diode; HBT; YIG sphere; device; terfenol; gunn diode; stabilised; YIG film; quarts crystal; phase locked loop; magnetostrictive; resonator; phase error; whispering gallery mode; sapphire resonator; Fabry-Perot resonator; PHEMT; microwave; HFET; phase noise; DR; dielectric resonator; PM noise; balanced oscillator; piezo electric; AGC; frequency discriminator;

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6. 4. Hardware Solutions for High Data Rate Modems

   Author : Zhongxia Simon He; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mHEMT; HBT; OOK; Modem; Mobile Backhaul; D-QPSK; MMIC;

   Abstract : The exponentially-growing mobile data traffic imposes significant demands on the capacity of the mobile network. Fiber optic and microwave links are two main solutions for the mobile backhaul network, which provides connectivity between radio base station (RBS) sites and the switch sites. READ MORE

7. 5. Studies of Light Emitting Devices Based on Er-doped Si and SiGe Layered Structures

   Author : Chun-Xia Du; Fransesco Priolo; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; electroluminescence; diode; transistor; hot electron; recombination; excitation; de-excitation; Auger effect; molecular beam epitaxy; Er; Si; SiGe;

   Abstract : Doping with rare earth element erbium (Er) in Si has recently attracted a lot of research interest due to potential applications in Si-based opto-electronics. By using molecular beam epitaxy (MBE), precipitate-free Er-doping in Si has been made together with other co-dopants, e.g., oxygen (0) and fluorine (F), up to a level ∼1020 cm-3. READ MORE