UWB compact probe microwave imaging antenna
The medical imaging has undergone significant advancements, leading to the development of human imaging systems with antennas working at microwave frequencies, thanks to its low-cost, compact size, and the use of non-ionizing waves, to visualize the internal parts of the human body by producing micr...
| Autor: | |
|---|---|
| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/403068 |
| Acceso en línea: | https://hdl.handle.net/2117/403068 |
| Access Level: | acceso abierto |
| Palabra clave: | Microwaves Antennas (Electronics) antenna microwave UWB S parameters microwave imaging compact bandwidth Microones Antenes (Electrònica) Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Antenes i agrupacions d'antenes |
| Sumario: | The medical imaging has undergone significant advancements, leading to the development of human imaging systems with antennas working at microwave frequencies, thanks to its low-cost, compact size, and the use of non-ionizing waves, to visualize the internal parts of the human body by producing micro-wave images. One of the challenging tasks of a microwave imaging (MWI) system is to design compact miniaturized Ultra-wide band (UWB) antennas at microwave frequency. These antennas are used on-body, so they need to be compact in size. To get a better imaging resolution wide bandwidth is one of the requirements. In this master's thesis an UWB compact Parabolic Back Cavity Waveguide (PBCW) antenna is designed using CST studio. The antenna is matched to the human brain-modelled medium. The PBCW antenna is working with a frequency range from 0.8 GHz to 2.75 GHz, with an overall size of 44.5 mm × 34 mm × 15 mm. The probe antenna is fabricated and measured in the lossy liquid mimicking the average permittivity of the brain medium, the scattering parameters are measured with a network analyzer ZNB40. The result shows a good agreement between the numerical and experimental validation of the antennas. |
|---|