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undergraduate thesis
Antenski sustavi u mrežama za mobilnu telefoniju
Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:179:383695
Jurković, Vice
University of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
Department of Electronics and Computing

Institutional repository: Repository of the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture

Cite this document

Jurković, V. (2022). Antenski sustavi u mrežama za mobilnu telefoniju (Undergraduate thesis). Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:179:383695

Jurković, Vice. "Antenski sustavi u mrežama za mobilnu telefoniju." Undergraduate thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:383695

Jurković, Vice. "Antenski sustavi u mrežama za mobilnu telefoniju." Undergraduate thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:383695

Jurković, V. (2022). 'Antenski sustavi u mrežama za mobilnu telefoniju', Undergraduate thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, accessed 17 July 2024, https://urn.nsk.hr/urn:nbn:hr:179:383695

Jurković V. Antenski sustavi u mrežama za mobilnu telefoniju [Undergraduate thesis]. Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; 2022 [cited 2024 July 17] Available at: https://urn.nsk.hr/urn:nbn:hr:179:383695

V. Jurković, "Antenski sustavi u mrežama za mobilnu telefoniju", Undergraduate thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:179:383695

Metadata
TitleAntenski sustavi u mrežama za mobilnu telefoniju
Title (english)Antenna systems in mobile telephony networks
AuthorVice Jurković
MentorAntonio Šarolić https://orcid.org/0000-0001-7941-1977 (mentor)
GranterUniversity of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
(Department of Electronics and Computing)
Split
Defense date and country2022-09-21, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electronics
Abstract
Cilj ovog završnog rada bio je izrada modela bazne stanice za mobilnu telekomunikaciju. Prvo je dan pregled osnovnih parametara antene koje je potrebno poznavati prije upuštanja u izradu modela. Konačni simulacijski model bazne stanice se sastojao od 8 poluvalnih vertikalnih dipola ispred žičanog reflektora. Modeliranje je započeto izradom modela jednog poluvalnog dipola. Izvršena je optimizacija duljine dipola u svrhu korekcije nežaljene reaktivne komponente impedancije. Zatim je, uz optimalnu duljinu jednog dipola, zadatak bio pronaći optimalnu udaljenost između dva dipola. Cilj je bio potisnuti sporedne latice. Nakon pronađene optimalne duljine i razmaka između dipola, gradili su se modeli od 2, 4, 6 i 8 dipola. Postupnim dodavanje dipola zračenje je postajalo sve više usmjereno, a dobitak veći. S obzirom da su glavna i stražnja latica imale jednaki dobitak, problem je riješen dodavanjem reflektora. Time smo povećali dobitak i smanjili omjer naprijed-nazad. Konačno dobivena konstrukcija od 8 dipola i reflektora namijenjena je za implementaciju u sustav bazne stanice. Izrađeni model smo usporedili s komercijalnom antenom iz kataloga te je poklapanje u parametrima antene bilo zadovoljavajuće.
Abstract (english)
The goal of this bachelor thesis was to create a base station model for mobile telecommunications. First, an overview of the basic parameters of the antenna was given. The final simulation model of the base station consisted of 8 half-wave vertical dipoles in front of the wire reflector. Modeling was started by creating a model of one half-wave dipole. An optimization of the dipole length was performed in order to correct the undesired reactive component of the impedance. Then, with the optimal length of one dipole, the task was to find the optimal distance between the two dipoles. The goal was to suppress the side lobes. After finding the optimal length and distance between the dipoles, antenna system consisting of 2, 4, 6 and 8 dipoles were modeled. By adding dipoles, half-power beamwidth angle was reduced, and the gain higher. Since the front and back lobe had equal gains, the problem was solved by adding the wire reflector. By doing so, we increased the gain and reduced the forward-backward ratio. The final model consisting of 8 dipoles and a wire reflector is intended for implementation in the base station system. We compared the manufactured model with a commercial antenna from the catalog, and the match in antenna parameters was satisfactory.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:179:383695
Study programmeTitle: Electrical Engineering
Study programme type: professional
Study level: undergraduate
Academic / professional title: Stručni/Stručna prvostupnik/prvostupnica inženjer/inženjerka elektrotehnike (Stručni/Stručna prvostupnik/prvostupnica inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to authenticated users
Terms of useLicence In copyright icon
Created on2023-05-18 13:20:12