Search for dissertations about: "Energy Amplifier"

Showing result 1 - 5 of 37 swedish dissertations containing the words Energy Amplifier.

  1. 1. SiC Varactors for Dynamic Load Modulation of Microwave Power Amplifiers

    Author : Christer Andersson; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear characterization; varactors; active load-pull; power; microwave; amplifier; dynamic load modulation; SiC; energy efficiency;

    Abstract : The rapid consumer adoption of mobile services is leading to an exponential growth in wireless data traffic. In order to accommodate more concurrent high data-rate users, the required complexity of transmitting radio base station (RBS) power amplifiers (PAs) is increasing. READ MORE

  2. 2. Aspects of Power Consumption in Coherent Fiber-Optical Communication Systems

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Lars Lundberg; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optical frequency comb; Fiber-optical communication; power consumption; carrier-recovery; Raman amplification; energy-efficiency; optical amplifier; digital signal processing; coherent detection; erbium-doped fiber amplifier; phase-tracking;

    Abstract : The power consumption of coherent fiber-optical communication systems is becoming increasingly important, for both environmental and economical reasons. The data traffic on the Internet is increasing at a faster pace than that at which optical network equipment is becoming more energy efficient, which means that the overall power consumption of the Internet is increasing. READ MORE

  3. 3. Energy Saving vs. Performance: Trade-offs in Optical Networks

    University dissertation from Stockholm, Sweden : KTH Royal Institute of Technology

    Author : Pawel Wiatr; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy-efficiency; optical networks; RWA; side-effects; device reliability performance; network performance; operational cost; benefits; loss; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : The energy consumption of communication networks is continuously growing. Many energy saving approaches have been proposed at the device, system, and network level. The most promising way to address this problem is to utilize photonic technologies as much as possible thanks to their low energy consumption per bit performance. READ MORE

  4. 4. Studies of Accelerator-Driven Systems for Transmutation of Nuclear Waste

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Marcus Dahlfors; Uppsala universitet.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; transmutation; accelerator-driven systems; Energy Amplifier; subcritical reactors; nuclear waste; Monte Carlo simulation; burnup; actinides; fission products; benchmark; nuclear data; neutron cross sections; sensitivity analysis; neutron source; spallation target; n_TOF experiment; neutron time-of-flight; cross section measurement; FLUKA; EA-MC; MCNP; MCNP-X; EADF; TRADE; Kärnfysik; NATURAL SCIENCES Physics Nuclear physics; NATURVETENSKAP Fysik Kärnfysik;

    Abstract : Accelerator-driven systems for transmutation of nuclear waste have been suggested as a means for dealing with spent fuel components that pose potential radiological hazard for long periods of time. While not entirely removing the need for underground waste repositories, this nuclear waste incineration technology provides a viable method for reducing both waste volumes and storage times. READ MORE

  5. 5. Negotiating Conventions : cleanliness, sustainability and everyday life

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Tullia Jack; Lunds universitet.; Lund University.; [2018-11-23]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; conventions; sustainability; everyday life; consumption; water; energy;

    Abstract : Cleanliness has seen a rapid increase in both developed and developing countries, along with a parallel rise in not only water and energy but also cleaning products consumed. Water and energy supply as well as dealing with waste are environmentally critical in securing a sustainable future. READ MORE