Search for dissertations about: "Planar Antennas"
Showing result 6 - 10 of 41 swedish dissertations containing the words Planar Antennas.
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6. Planar Quasiparticle Mixer Structures for Millimeter and Sub-Millimeter Wave Receivers
Abstract : The paper covers various aspects of integrating planar antennas with superconducting mixers in the millimeter and sub-millimeter wave regime. The construction of an 80-100 GHz tapered slot antenna and SIS mixer chip with a minimum double side band noise temperature of 240 K is described. READ MORE
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7. A comprehensive study of resistor-loaded planar dipole antennas for ground penetrating radar applications
Abstract : Ground penetrating radar (GPR) systems are increasingly being used for the detection and location of buried objects within the upper regions of the earth’s surface. The antenna is the most critical component of such a system. READ MORE
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8. Analysis and Design of Base Station Antennas for Mobile Communications
Abstract : The thesis deals with base station antennas and the environment they work in. Polarization diversity, dual band operation, and adaptive antenna systems are discussed with emphasis on how antennas for these applications should be designed. We compare the polarization diversity performance of different types of dual polarized antenna elements. READ MORE
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9. Gap Waveguide Technology for Millimeter Wave Applications and Integration with Antennas
Abstract : The increasing advance of short range wireless communications requiring high data rates and the lack of available spectrum have driven researchers and industry to move towards higher frequencies, in particular to the millimeter wave range. The opening of this wide portion of free spectrum has risen a large interest in developing mm-wave communication systems for commercial applications. READ MORE
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10. Radiation from planar antennas in the presence of layered dielectric media
Abstract : .... READ MORE