Sökning: "high frequency measurement"

Visar resultat 1 - 5 av 326 avhandlingar innehållade orden high frequency measurement.

  1. 1. Vertical Nanowire High-Frequency Transistors

    Författare :Sofia Johansson; NanoLund: Centre for Nanoscience; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanowires; III-V semiconductors; metal-oxide-semiconductor field-effect transistors; border traps; high-k;

    Sammanfattning : This thesis explores a novel transistor technology based on vertical InAs nanowires, which could be considered both for low-power high-frequency analog applications and for replacing Si CMOS in the continued scaling of digital electronics. The potential of this device - the vertical InAs nanowire MOSFET – lies in the combination of the outstanding transport properties of InAs and the improved electrostatic control of the gate-all-around geometry. LÄS MER

  3. 2. Low-Frequency Noise in Si-Based High-Speed Bipolar Transistors

    Författare :Martin Sandén; KTH; []
    Nyckelord :bipolar junction transistor BJT ; heterojunction bipolar transistor HBT ; silicon-germanium SiGe ; polysilicon emitter; high-frequency measurement; low-frequency noise; noise modeling; hydrogen passivation; voltage controlled oscillator VCO ; pha;

    Sammanfattning : .... LÄS MER

  4. 3. Time and Frequency Domain Measurement Methods for High Frequency Characterisation of Power Cables

    Författare :Ruslan Papazyan; KTH; []
    Nyckelord :Attenuation measurement; XLPE insulation; Power cables;

    Sammanfattning : Time Domain Reflectometry (TDR) has been used forlocalisation of transmission line discontinuities in variousapplications. One of the challenges when applying TDR on powercables is to obtain knowledge of the high frequencycharacteristics of both the degraded and the undegradedsections of the cable. LÄS MER

  5. 4. ORMOCER Materials Characterization, LAP- & Micro-Processing : Applied to Optical Interconnects and High-Frequency Packaging

    Författare :Steffen Uhlig; Mats Robertsson; Peter van Daele; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical interconnects; Optical Backplanes; ORMOCER; SBU-technology; high-frequency packaging; surface characterization; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Sammanfattning : ORMOCERR®s are organic-inorganic hybrid polymers. Since their material properties can be tailored precisely during synthesis, they are suitable for a wide range of applications in dielectric and optical microelectronics. LÄS MER

  7. 5. On Radio Frequency Behavioral Modeling : Measurement Techniques, Devices and Validation Aspects

    Författare :Per N. Landin; Peter Händel; Magnus Isaksson; Wendy Van Moer; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Elektronik;

    Sammanfattning : Effektförstärkare för radiofrekvensapplikationer utgör fortfarande ett av de största problemen i trådlösa kommunikationssystem. Detta beror på att dessa förstärkare är ickelinjära, har låg energieffektivitet och ger mycket distortioner. Bättre verktyg för att förstå och korrigera dessa beteenden är nödvändiga. LÄS MER