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Title:Specialized Transmitter for Electromagnetic Compatibility Testing : master's thesis
Authors:ID Marič, Erik (Author)
ID Rojc, Matej (Mentor) More about this mentor... New window
Files:.pdf MAG_Maric_Erik_2025.pdf (3,71 MB, This file will be accessible after 28.11.2028)
MD5: 2E54FD2578CE5AB89E9A1A7D08BC3B2A
 
Language:English
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:In this thesis, we aimed to design, test, and implement a custom transmitter for electromagnetic compatibility (EMC) testing. After assembling a technological overview of all relevant technologies, we engineered the design of the first prototype. It was a battery powered, manually tunable, communication isolated, compact, portable transmitter that can operate without other control devices in a test setup. The central parameters of improvement were enhanced power output and EMC. The power output needed to be manually tunable and enable constant magnetic field strength over a select set of distances. We had to implement all enhancements to the design while simultaneously improving the electromagnetic compatibility as much as possible. We were focusing on the noise produced by the transmitter itself. According to the test plan, we performed tests in signal quality, output power over distance, and EMC in a GTEM cell. In the first prototype, we did not reach the goals of increasing power output, adding the ability to adjust the output power manually, and increasing electromagnetic compatibility. The amplification stage and output driver stage did not meet the full specifications. The initial stages of the transmitter were fully functional, and we can include them in the next design.
Keywords:transmitter, EMC testing, wireless transmission, signal synthesis.
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[E. Marič]
Year of publishing:2025
Number of pages:1 spletni vir (1 datoteka PDF (XX, 128 str.))
PID:20.500.12556/DKUM-95844 New window
UDC:621.37:621.391(043.2)
COBISS.SI-ID:262645763 New window
Publication date in DKUM:16.12.2025
Views:233
Downloads:0
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:29.10.2025

Secondary language

Language:Slovenian
Title:Specializiran oddajnik za preizkušanje elektromagnetne združljivosti
Abstract:Zagotavljanje ustreznosti frekvenčnega spektra je na področju inovacij naprav z zmožnostmi brezžične komunikacije in brezžičnega prenosa moči ključnega pomena. V testih elektromagnetne združljivosti se preverja ustreznost prenosa signala pri določenih frekvencah in moči. Če se izide, da oddani signali ne ustrezajo mejam standardov, naprava ne pridobi potrdila za ustreznost. Takšna naprava ne more biti dostopna na prostem trgu. Končno preverjanje se izvaja v zunanjih testnih hišah, kjer se opravita strokovni pregled in ovrednotenje rezultatov elektromagnetne združljivosti in elektromagnetne odpornosti. Preverjanje naprave v zunanjih laboratorijih lahko povzroči zakasnitve v časovnem načrtu projekta. Sočasno predstavlja tudi določeno stopnjo finančne obremenitve. Če bi v vsakem ciklu iskanja in odpravljanja pomanjkljivosti bili odvisni od zunanjih laboratorijev, bi projekt postal potencialno dražji in časovno neizvedljiv. Rešitev za pohitritev iskanja pomanjkljivosti je razvoj lastnega testnega poligona. V večini primerov oprema za elektromagnetno združljivost zahteva znatne investicije. Za ustrezno preverjanje se pogosto potrebuje več različnih naprav. Izpolnjevanje vseh zahtev preverjanja naprave, z opremo dostopno na prostem trgu, včasih tudi ni možno. Kot alternativa ostane tako zasnova in izdelava lastne testne opreme, ki je prilagojena notranjim aplikacijam podjetja. V nalogi »Specializiran oddajnik za preizkušanje elektromagnetne združljivosti« smo si tako zadali cilj izdelati oddajnik, ki presega trenutno opremo v ustreznosti in pokriva celoten seznam zahtev. Hkrati je moral biti združljiv tudi z obstoječo laboratorijsko opremo. Prejšnja verzija oddajnika je imela pomanjkljivosti v izhodni moči in spektralni čistosti signala. Poleg znatnega izboljšanja obeh parametrov smo želeli dodati tudi nove funkcionalnosti.
Keywords:oddajnik, EMC testiranje, brezžični prenos, sinteza signalov.


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