Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Planar microwave"”.
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Electrodynamic Green's Functions in Layered Media: Accurate Closed -Form Approximations for Both Electric and Magnetic Sources
… Green's function in the presence of planar media composed of layers of arbitrary material composition and thickness. Special emphasis was placed on making the computer tool robust to ensure the accuracy of the calculated Green's function over a very broad range of frequencies, thus …
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Flexible electronics for chipless RFID sensors
… with increasingly lower prices are required. Planar microwave chipless sensors could be a valid solution and will be the focus of this PhD research proposal. With a completely passive solution, that in its basic configuration is composed by only microstrip resonant structures and sensitive …
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Bandwidth enhancement techniques for low-profile antennas: Theory and experiment
… was previously introduced for the analysis of planar microwave circuits, has been extended to the analysis of thin microwave antennas. The results from the boundary-integral method compare reasonably well with with the measured data. The boundary-integral method is also used to predict the …
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Hybrid Magnonics in Antiferromagnets and Cavity Spintronic Devices
… two magnetic materials. Secondly, by utilizing planar microwave resonators, we realize on-chip, lithographically scalable, and Circuit Quantum Electrodynamics compatible magnon-photon hybrid systems. Strong magnon-photon coupling with three orders of magnitude reduction in spin number is …
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DETERMINING THE QUALITY OF PASTEURISED AND HOMOGENISED COW MILK USING MICROWAVE SENSORS
… research work is to design and develop a novel, microwave spectroscopy, approach for determination of overall quality of milk. In particular, this quality determination of milk products was achieved by identification of deterioration or spoilage of milk over time, classification of the milk …
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Fast Multilevel Algorithms for the Electromagnetic Analysis of Quasi-Planar Structures
… scattering and radiation from quasi-planar structures is a topic of great current interest, owing to the wide range of applications. A host of structures and surfaces are included in the quasi-planar class, including rough surfaces, quantum well infrared photodetector gratings, planar …
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BULK TITANIUM WAVEGUIDE- A NEW PLATFORM FOR UNIPLANAR MICROWAVE CIRCUITS AND RFMEMS
The majority of uniplanar circuits are based on transmission lines of two basic topologies: Microstrip and Coplanar Waveguide (CPW). Microstrip offers low loss, while suffering from large circuit size, high dispersion, poor design flexibility, and the necessity of large via holes. CPW improves upon …
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Developing a microfluidic-microwave platform for real-time, non-invasive and sensitive monitoring of pathogens and antibiotic susceptibility testing
… methods, such as optical, electrochemical or microwave sensing. One application in which capillary fluidics can vastly improve the quality of service is infection diagnosis and antibiotic susceptibility testing. Due to issues with infection diagnosis and outdated antibiotic susceptibility …
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Miniaturised bandpass filters for wireless communications
… in the development and realization of RF and microwave filters, which have not only sustained but fuelled microwave filter research over the many years. These developments have encouraged new solutions and techniques for the realization of compact, low loss, highly selective RF and microwave …
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Practical realisation of multiband planar filters on multilayer substrates
This research presents the design of planar microwave filters implemented on microstrip multi-layer technology. These should be able to attain and realize specified essential requirements such as multi-band operation, compact size, and without significant deteriorated filter performance in …
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Miniaturised and reconfigurable planar filters for ultra-wideband applications
… of this research is to develop reconfigurable planar microwave filters for ultrawideband applications. The project investigates some key design issues of reconfigurable filters, which are being observed constantly in the latest development and realisation of microwave filters. Both analytical …