Search for dissertations about: "Passive Design"

Showing result 21 - 25 of 264 swedish dissertations containing the words Passive Design.

2. 21. THz Ultra-wideband Passive Devices: Design, Simulation and Characterization

   Author : Cristian Daniel López; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Superconducting Transition; Substrateless Finline; Compact waveguide twist; Marchand Baluns.; Broadband Waveguide to Substrate Transition;

   Abstract : The last decades have seen an increasing interest in the THz research field, leading to a substantial improvement in technology and the emergence of new applications. In particular, the research on radio astronomy instrumentation has pushed millimeter and sub-millimeter technology boundaries and redefined state of the art. READ MORE

4. 22. Electromagnetic simulation and design of etched diffraction grating demultiplexers

   Author : Jun Song; Sailing He; Dries Van Thourhout; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; etched diffraction grating; wavelength division multiplexing; passive devices; diffraction grating; planar waveguide devices; DWDM; optical communication.; Photonics; Fotonik;

   Abstract : Among various planar lightwave circuits for multiplexing/demultiplexing in an optical communication system, etched diffraction gratings (EDGs) have shown great potential due to their compactness and high spectral finesse. Conventional numerical methods for grating simulation cannot be used to simulate an EDG demultiplexer of large size (in terms of the wavelength). READ MORE

5. 23. Investigations of passive safety systems in LWRs : melt coolability with bottom coolant injection, light gas effects on a passive containment cooling system

   Author : Domenico Paladdino; KTH; []
   Keywords : ;

   Abstract : The key objectives in introducing passive features in thesafety systems for Light Water Reactor (LWR) are to increasetheir reliability, to simplify the design of the plants and toimprove performance and economics. Component and integralsystem tests in scaled facilities are required for optimizingthe design and for certification of these safety systems. READ MORE

6. 24. Superconducting High Speed Passive Interconnects

   Author : Raihan Rafique; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rapid Single Flux Quantum RSFQ ; Superconducting Microstrip Line SMSL ; RSFQ Driver.; Interconnect Discontinuities; Multi-Chip-Module MCM ;

   Abstract : Superconducting digital RSFQ technology offers unique digital processing solutions for the telecommunication that allows more than three times increasing capacity of the 3G networks, makes telecommunication receivers reconfigurable and adjustable for different services, and significantly enhances security level of the data transfer over the fibers.Key features of RSFQ technology are high speed, low power and high integration density. READ MORE

7. 25. Optical Interconnects for Next Generation Data Centers : Architecture Design and Resource Allocation

   Author : Yuxin Cheng; Jiajia Chen; Lena Wosinska; Po Dong; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

   Abstract : The current data center architectures based on blade servers and elec- tronic packet switches face several problems, e.g., limited resource utilization, high power consumption and cost, when handling the rapidly growing of data traffic. READ MORE