Search for dissertations about: "Vessen Vassilev"
Found 3 swedish dissertations containing the words Vessen Vassilev.
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1. Development of components for mm-wave radio astronomy instrumentation / Vessen V. Vassilev
Abstract : .... READ MORE
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2. Development of a Sideband Separating SIS Mixer Technology for MM-Wavelengths
Abstract : This thesis presents work done in developing instrumentation for mm-wave radio astronomy. The main subject of the thesis is a sideband separating (2SB) receiver for 85-115 GHz based on a quadrature scheme with two identical SIS mixer junctions pumped by a LO applied with 90° phase difference. READ MORE
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3. 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