Eksperimentalna verifikacija dijagrama zračenja u milimetarskom valnom području

master's thesis

• Title (english): Experimental Verification of Radiation Patterns in Millimeter-wave Band
• Author: Filip Sučevac
• Mentor: Goran Molnar (mentor)
• Committee member: Goran Molnar (predsjednik povjerenstva)
• Committee member: Mladen Vučić (član povjerenstva)
• Committee member: Damir Seršić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2022-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U ovom diplomskom radu provedena je analiza tehnologije oblikovanja dijagrama zračenja 5G odašiljača namijenjenog za rad na frekvenciji od 28 GHz. Za dani odašiljač, opisana je njegova arhitektura te struktura antenskog elementa, struktura planarnog antenskog polja te parametri cjelokupnog antenskog sustava. Na primjeru dijagrama zračenja s uskom glavnom laticom, prvo je provedeno njegovo oblikovanje u Matlab programskom okruženju. Kao rezultat Matlab simulacije dobiveni su prikazi dijagrami zračenja u 2D i 3D prostoru. S druge strane, za potrebe mjerenja dijagrama zračenja, provedena je modifikacija postojeće programske podrške 5G odašiljača na način da ona podržava proizvoljni smjer glavne latice i po azimutnom i po elevacijskom kutu. Konačno, razvijen je i uhodan cjelokupni mjerni sustav te su izmjereni dijagrami zračenja u stvarnim uvjetima. Izmjereni dijagrami zračenja pokazuju dobru podudarnost s rezultatima simulacije.

Abstract (english)

In this thesis, an analysis of the beamforming of a 5G transmitter operating at the frequency of 28 GHz is performed. For a given transmitter, its architecture and the structure of the antenna element, the structure of the planar antenna array, and the parameters of the entire antenna system are described. On the example of radiation pattern with a narrow beam, its design was first carried out in the Matlab environment. As a result of the Matlab simulation, the radiation patterns in 2D and 3D space were obtained. On the other hand, for the radiation pattern measurement, the existing software code of the 5G transmitter was modified in such a way that it supports the arbitrary direction of the beam in both azimuth and elevation angles. Finally, the overall measurement system was developed and tested, and the radiation patterns were measured in the real environment. The measured radiation patterns show good match with the simulation results.

• Keywords: antensko polje; oblikovanje dijagrama zračenja; 5G odašiljač; radijska bazna stanica
• Keywords (english): antenna array; beamforming; 5G transmitter; radio base station
• Language: croatian
• URN:NBN: urn:nbn:hr:168:219110
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-14 21:43:34