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master's thesis
Spektralna djelotvornost kućišta s otvorima
2018. urn:nbn:hr:200:394715
Alilović, Viktorija
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Communications
Laboratory for High Frequency Measurements

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Alilović, V. (2018). Spektralna djelotvornost kućišta s otvorima (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:394715

Alilović, Viktorija. "Spektralna djelotvornost kućišta s otvorima." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2018. https://urn.nsk.hr/urn:nbn:hr:200:394715

Alilović, Viktorija. "Spektralna djelotvornost kućišta s otvorima." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2018. https://urn.nsk.hr/urn:nbn:hr:200:394715

Alilović, V. (2018). 'Spektralna djelotvornost kućišta s otvorima', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 24 April 2025, https://urn.nsk.hr/urn:nbn:hr:200:394715

Alilović V. Spektralna djelotvornost kućišta s otvorima [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2018 [cited 2025 April 24] Available at: https://urn.nsk.hr/urn:nbn:hr:200:394715

V. Alilović, "Spektralna djelotvornost kućišta s otvorima", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:200:394715

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Metadata
TitleSpektralna djelotvornost kućišta s otvorima
Title (english)Shielding effectiveness (SE) of enclosure with apertures
AuthorViktorija Alilović
MentorVanja Mandrić Radivojević (mentor)
Committee memberVanja Mandrić Radivojević (predsjednik povjerenstva)
Committee memberDavor Vinko (član povjerenstva)
Committee memberSlavko Rupčić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Communications)
(Laboratory for High Frequency Measurements)
Osijek
Defense date and country2018-02-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Telecommunications and Informatics
Abstract
Oklapanje elektroničkih (električkih) ureĎaja jedan je od najraširenijih postupaka zaštite ljudi od elektromagnetskog zračenja. TakoĎer, oklapanje osigurava siguran rad ureĎaja uslijed elektromagnetskog polja koja se nalaze u njegovom okruţenju. Djelotvornost oklapanja (eng. shielding effectiveness - SE) definirana je odnosom signala na prijemniku sa i bez oklopa oko njega. Postupci mjerenja djelotvornosti oklapanja na visokim frekvencijama u dalekom području normirani su normom IEEE Std 299-1997. U okviru diplomskog rada opisane su dvije metode mjerenja djelotvornosti oklapanja: 1. mjerenjem koeficijenta sprege sa i bez oklopa te 2. mjerenjem jakosti E polja sa i bez oklopa s dva različita seta mjerne opreme. Mjerenja djelotvornosti oklapanja izvedena su za dva različita oklopa u obliku kvadra. Oklopi su izraĎeni od bakrenog lima, a na prednjoj stranici oklopa izvedeni su prorez i okrugli otvori. Otvori na zaštitnom oklopu izvedeni su iz razloga što se na realnim zaštitnim oklopima pojavljuju otvori za napojne i informacijske kabele, otvori za ventilaciju, otvori pri izvedbi spojeva oklopa i dr. U zaključnom dijelu rada mjereni rezultati SE usporeĎeni su sa simulacijski dobivenim rezultatima.
Abstract (english)
Electromagnetic shielding is one of the most widely used methods of protecting people from electromagnetic radiation. Also, shielding ensures safe operation of the device due to the electromagnetic field in its environment. Shielding effectiveness (SE) is defined by the ratio of signal on the receiver with and without the shield around it. High frequency shielding effectiveness measurements in a far field area are standardized by IEEE Std 299-1997. Within the scope of the thesis, two methods of measuring the effectiveness of shielding are described: 1. by measuring the coefficient of the with and without the shield; and 2. by measuring the strength of the E-field with and without the shield with two different sets of measuring equipment. Shielding effectiveness measurements were made for two different shapes of rectangular enclosure. The enclosures are made of copper sheets, and on the front of the enclosure are slit and round apertures. The apertures on the protective enclosure are 36 derived from the fact that in the real protective enclosures there are openings for information and supply cables, ventilation openings, openings for shield joints etc. In the final part of the work, the measured results are compared with the simulation results obtained
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:394715
Study programmeTitle: Graduate University Study Programme in Electrical Engineering; specializations in: Communications and Informatics, Power Engineering
Course: Communications and Informatics
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike (magistar/magistra inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2018-03-23 15:40:13