Título: Microstrip Antennas - Pre-design procedure
Descripción automática: In this video, the speaker introduces the pre-design procedure for microstrip antennas, starting with a rundown of the basic specifications, including the frequency band, input impedance, gain, and polarization. The procedure comprises three steps: firstly, selecting the dielectric substrate by its properties; secondly, determining the patch dimensions involving width and length; and thirdly, estimating the feeding point location.
The speaker discusses refining the pre-design with software and highlights the importance of substrate choice, focusing on aspects like relative permittivity (dielectric constant), loss tangent, and substrate thickness, and how these affect antenna efficiency and bandwidth. Clarification is given on how the permittivity and thickness of the substrate impact the antenna's impedance, bandwidth, and radiation efficiency, providing a rule-of-thumb for initial patch width calculation and subsequent iterative processes for fine-tuning dimensions and feeding point location.
An example is given to illustrate the pre-design process: a patch antenna with specific frequency and bandwidth requirements using Rogers RT/duroid 5880 substrate. Steps are detailed, involving substrate thickness selection and iterative calculations to refine the patch dimensions, ultimately achieving the target bandwidth and radiation efficiency. The speaker further emphasizes the accuracy of the pre-design when compared to the simulation results using a software tool, showing a good match in parameters like bandwidth and gain and the resulting radiation pattern, with minimal discrepancies.
The video is a technical walkthrough for engineers and students in antenna design, focusing on the early stages of microstrip antenna development and optimization.
Autor/a: Peixeiro Custódio
Curso: Este vídeo es el 33/62 del curso European School of Antennas. [ Ссылка ]
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