Search for dissertations about: "dielectric lenses"
Showing result 1 - 5 of 6 swedish dissertations containing the words dielectric lenses.
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1. Design and Performance of Some Components for a Millimeter Wave Imaging Receiver
Abstract : This thesis deals with the design and performance of some novel devices for an imaging receiver, operating in the frequency band centered at 100 GHz, to be used in radio astronomy research. The emphasis is given on simple, small and reliable devices in order to reduce the complexity of an already complex receiver. READ MORE
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2. On millimeter and submillimeter wave focal plane arrays implemented with MEMS waveguide switches
Abstract : This thesis presents research towards enabling micromachined millimeter and submillimeter wave focal plane arrays (FPAs). The FPAs operate under the following principle: a switch network consisting of microelectromechanical (MEMS) switches, integrated with micromachined waveguides, is used to feed an array of antenna elements, located in the focal plane of a high-gain quasi-optical system. READ MORE
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3. Optical interconnects and high frequency electronic packaging : SBU-materials, material characterization, LAP- & microprocessing
Abstract : The main objective of this thesis is to discuss and demonstrate optical interconnect technologies. These can be used to enhance the data throughput capacity of future printed circuit boards and backplanes, i.e. exchange Copper conductors with light conductors. READ MORE
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4. Photonic THz Generation and Quasioptical Integration for Imaging Applications
Abstract : This thesis deals with the analysis and optimisation of the uni-travelling-carrier photodiode (UTC-PD) for continuous-wave generation in terahertz (THz) frequencyrange. Photonic THz generation using UTC-PDs is extremely promising as it offers wide tunability, adequate output power and room temperature operation. READ MORE
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5. High Frequency Microwave and Antenna Devices based on Transformation Optics and Glide-Symmetric Metasurfaces
Abstract : The new generation of wireless communication networks intends to support data rate of Gbit/s. One solution to make it possible is to move upwards in frequency range to employ the unused spectrum in mm-wave frequencies. READ MORE