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master's thesis
Mjerenje karakteristika električki malih antena za rezonantni bežični prijenos energije u HF pojasu
Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:179:265659
Jukić, Matea
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

Jukić, M. (2022). Mjerenje karakteristika električki malih antena za rezonantni bežični prijenos energije u HF pojasu (Master's thesis). Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:179:265659

Jukić, Matea. "Mjerenje karakteristika električki malih antena za rezonantni bežični prijenos energije u HF pojasu." Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:265659

Jukić, Matea. "Mjerenje karakteristika električki malih antena za rezonantni bežični prijenos energije u HF pojasu." Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:265659

Jukić, M. (2022). 'Mjerenje karakteristika električki malih antena za rezonantni bežični prijenos energije u HF pojasu', Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, accessed 14 October 2024, https://urn.nsk.hr/urn:nbn:hr:179:265659

Jukić M. Mjerenje karakteristika električki malih antena za rezonantni bežični prijenos energije u HF pojasu [Master's thesis]. Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; 2022 [cited 2024 October 14] Available at: https://urn.nsk.hr/urn:nbn:hr:179:265659

M. Jukić, "Mjerenje karakteristika električki malih antena za rezonantni bežični prijenos energije u HF pojasu", Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:179:265659

Metadata
TitleMjerenje karakteristika električki malih antena za rezonantni bežični prijenos energije u HF pojasu
Title (english)Measurements of electrically small antennas characteristics for resonant wireless power transfer in HF band
AuthorMatea Jukić
MentorZoran Blažević https://orcid.org/0000-0001-5405-8003 (mentor)
GranterUniversity of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
(Department of Electronics and Computing)
Split
Defense date and country2022-09-01, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electronics
Abstract
Osnova na kojoj se bazira ovaj rad je bežični prijenos energije. Opisan je način rada bežičnog sustava kao i tehnologije prijenosa u bliskom i dalekom polju. Nadalje su navedene osnove bežičnog prijenosa energije radiovalovima te metode modeliranja sustava bežičnog prijenosa. Antene su izrađene pomoću 3D printera te je postavljena samorezonantna frekvencija na 13.56 MHz. Izmjereni su ulazni parametri antena (koeficijent refleksije, impedancija antene, KSV) pomoću vektorskog mrežnog analizatora i programa S-View parameter viewer. Izračunata je efikasnost prijenosa snage induktivno napajanog sustava pri čemu se najbolji prijenos ostvaruje na udaljenosti antena između 2.5 cm i 5 cm. Rezultat simulacije u programskom paketu 4nec2 pokazuje da se najbolji prijenos ostvaruje na udaljenosti od 20 cm, ali se u ovom slučaju radi o izravno napajanom sustavu. Najbolji prijenos je ostvaren na udaljenostima na kojima je sustav bio kritično spregnut, tj. antene su bile dovoljno blizu da su gubitci minimalni, ali i dovoljno daleko da ne dođe do pojave frekvencijskog razdvajanja.
Abstract (english)
The main topic is wireless power transmission. The mode of operation of the wireless system as well as the transmission technologies in the near and far field are described. Furthermore, the basics of wireless power transmission by radio waves and methods of modeling wireless transmission systems are listed. The antennas were made using a 3D printer and the selfresonant frequency was set to 13.56 MHz. The input parameters of the antennas (reflection coefficient, antenna impedance, KSV) were measured using a vector network analyzer and the S-View parameter viewer program. The power transmission efficiency of the inductively powered system was measured, whereby the best transmission is achieved when the antennas are at a distance between 2.5 cm and 5 cm. The result of the simulation in the 4nec2 software package shows that the best transmission is achieved at a distance of 20 cm, but in this case it is a directly powered system. The best transmission was achieved at distances where the system was critically coupled. Or in other words, the antennas were close enough that the losses were minimal, but also far enough to minimise the unwanted coupling effects such as frequency splitting.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:179:265659
Study programmeTitle: Electronics and Computer Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektronike i računalnog inženjerstva (magistar/magistra inženjer/inženjerka elektronike i računalnog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to authenticated users
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Created on2023-05-18 11:19:42