Sökning: "single-ended"

Visar resultat 1 - 5 av 27 avhandlingar innehållade ordet single-ended.

  1. 1. Development and Application of Single-Ended Picosecond Laser Diagnostics

    Författare :Billy Kaldvee; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Raman Scattering; Temporal Filtering; Picosecond Laser Diagnostics; Rayleigh Scattering; Laser-spectroscopy; DIAL; Laser Combustion Diagnostics; Lidar; Laser-induced Fluorescence; Laser-induced Incandescence; Fysicumarkivet A:2012:Kaldvee;

    Sammanfattning : Light detection and ranging (lidar), a method for nonintrusive, single-ended, and range resolved measurements, has been developed and applied for combustion related diagnostics. Employing picosecond laser pulse durations and detectors providing temporal resolution on the order of picoseconds, lidar has been applied successfully for both quantitative temperature- and species concentration measurements, obtaining an ultimate range resolution of 0. LÄS MER

  3. 2. Microwave and Millimeter-Wave Monolithic Integrated Circuits in CMOS and GaAs-mHEMT Technologies

    Författare :Bahar M. Motlagh; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MMIC; power divider; double-slot antenna; 60 GHz; millimeter-wave; GaAs-mHEMT; CMOS integrated circuits; antenna integration; noise measurement; 100 nm mHEMT technology; balun; capacitor; microstrip line; single-ended; 90 nm CMOS technology; single-balanced; resistive mixer; 210 GHz;

    Sammanfattning : The objective of this work has been to design and characterize microwave and millimeter-wave components and circuits within a 90 nm Si-CMOS process and a 100 nm GaAs-mHEMT process. The work is divided in two parts depending on the technology. LÄS MER

  4. 3. High Performance LNAs and Mixers for Direct Conversion Receivers in BiCMOS and CMOS Technologies

    Författare :TOBIAS TIRED; Institutionen för elektro- och informationsteknik; []
    Nyckelord :LNA; mixer; direct conversion receiver;

    Sammanfattning : The trend in cellular chipset design today is to incorporate support for a larger number of frequency bands for each new chipset generation. If the chipset also supports receiver diversity two low noise amplifiers (LNAs) are required for each frequency band. This is however associated with an increase of off-chip components, i.e. LÄS MER

  5. 4. Integrated Transceivers for Millimeter Wave and Cellular Communication

    Författare :TOBIAS TIRED; Institutionen för elektro- och informationsteknik; []
    Nyckelord :receiver; LNA; mixer; bipolar; BiCMOS; SiGe; mm-wave; E-band; transmitter; PLL; PA; beam steering;

    Sammanfattning : Abstract:This doctoral thesis is addresses two topics in integrated circuit design: multiband direct conversion cellular receivers for cellular frequencies and beam steering transmitters for millimeter wave communication for the cellular backhaul. The trend towards cellular terminals supporting ever more different frequency bands has resulted in complex radio frontends with a large number of RF inputs. LÄS MER

  7. 5. Flexible cables for massive-parallel high-speed data communications

    Författare :Allan Huynh; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The demand for high-speed data communications has pushed both the wired and wireless technologies to operate at higher and higher frequencies. Classic Kirchhoffs voltage and current laws cannot be directly applied, when entering the microwave spectrum for frequency > 1 GHz. Instead, the transmission line theory should be used. LÄS MER