التفاصيل البيبلوغرافية
| العنوان: |
Modelling of Coupled Multi-antenna Scattering Systems |
| المؤلفون: |
Kuznetsov, Aleksandr |
| المساهمون: |
Holopainen, Jari, Sähkötekniikan korkeakoulu, Viikari, Ville, Aalto-yliopisto, Aalto University |
| سنة النشر: |
2023 |
| المجموعة: |
Aalto University Publication Archive (Aaltodoc) / Aalto-yliopiston julkaisuarkistoa |
| مصطلحات موضوعية: |
antenna scattering system, scattering, coupled antenna array, time-varying load, polyharmonic distortion modelling, bistatic RCS |
| الوصف: |
Antenna scattering systems are used to handle possible problems connected with wireless communication disturbance due to the changes in medium of the signal propagation. In addition to supporting existing communication channels, they may be also applied for the signal transformation, which gives new opportunities for the use of wireless networks, such as backscattering communication. To design a proper system, an efficient and general model of scattering systems is required. The aim of this thesis is to develop a model for systems of coupled multi-antenna scatterers. It should consider antenna termination with both static and time-varying types of loads. These conditions ensure wider possibilities during the analysis and optimization processes, because the model includes indicative parameters, the value of which may be designed. To achieve the target of the thesis, the literature review of existing standard techniques of scattering structures analysis from theoretical and practical point of view is done. Following the results, the S-parameters and polyharmonic distortion based model is proposed for the computation of scattering of antenna arrays containing multiple coupled antenna elements terminated with static and time-varying types of loads, which does not exist among the known models. As an example of a time-varying load, the switched load is chosen, and the analysis of its performance is proposed. Unlike many of current approaches working with general scatterers, model allows the variation of load values without repeating the computation of the antenna. The developed approach allows the use of different sources of input information related to the array configuration (theoretical, simulation-based and experimental) to achieve the result. Additionally, the model gives an opportunity to perform an analysis of the suitability of different antenna types for the role of a single antenna element of adjustable antenna-based scattering structure. The performance of the developed model is verified by simulations and ... |
| نوع الوثيقة: |
master thesis |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
https://aaltodoc.aalto.fi/handle/123456789/120281; URN:NBN:fi:aalto-202303262604 |
| الاتاحة: |
https://aaltodoc.aalto.fi/handle/123456789/120281 |
| رقم الانضمام: |
edsbas.BC356D1E |
| قاعدة البيانات: |
BASE |