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doctoral thesis
Analysis of reflector antenna systems by means of new conical wave objects
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2010. urn:nbn:hr:168:505709
Škokić, Siniša
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

Cite this document

Škokić, S. (2010). Analysis of reflector antenna systems by means of new conical wave objects (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:505709

Škokić, Siniša. "Analysis of reflector antenna systems by means of new conical wave objects." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2010. https://urn.nsk.hr/urn:nbn:hr:168:505709

Škokić, Siniša. "Analysis of reflector antenna systems by means of new conical wave objects." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2010. https://urn.nsk.hr/urn:nbn:hr:168:505709

Škokić, S. (2010). 'Analysis of reflector antenna systems by means of new conical wave objects', Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 10 August 2024, https://urn.nsk.hr/urn:nbn:hr:168:505709

Škokić S. Analysis of reflector antenna systems by means of new conical wave objects [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2010 [cited 2024 August 10] Available at: https://urn.nsk.hr/urn:nbn:hr:168:505709

S. Škokić, "Analysis of reflector antenna systems by means of new conical wave objects", Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2010. Available at: https://urn.nsk.hr/urn:nbn:hr:168:505709

Metadata
TitleAnalysis of reflector antenna systems by means of new conical wave objects
Title (croatian)Analiza reflektorskih antenskih sustava pomoću novih konusnih valnih objekata
AuthorSiniša Škokić
MentorZvonimir Šipuš (mentor)
MentorStefano Maci (komentor)
VIAF: 48394067
Committee memberJuraj Bartolić (predsjednik povjerenstva)
Committee memberDarko Žubrinić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2010-04-23, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
This dissertation discusses a method of analysing reflector antenna systems by means of a new type of wave objects. By expanding the electric field spectrum in a sum of complex exponentials (GPOF expansion), the radiation integral reduces to a sum of simpler integrals which can be solved in closed form, whereby each of them represents one wave object that rigorously satisfies the wave equation. Vector electromagnetic fields are calculated from these wave objects via auxiliary vector potentials, while the reflection of the electromagnetic wave from curved metallic reflectors is treated with Physical Optics. The main advantage of this novel hybrid method is that it can be repeated without increasing the demands on computer resources, enabling fast analysis of a sequence of reflectors. To verify its validity, the method has been translated into a computer programme for analysing a sequence of ellipsoidal reflectors. The results are compared to those obtained with available commercial electromagnetic simulators and to reference results calculated via direct numerical integration. The developed method is shown to be as accurate as pure Physical Optics analysis, while performing much faster in case of multi-reflector systems.
Abstract (croatian)
U radu se obrađuje metoda analiziranja reflektorskih antenskih sustava primjenom nove vrste valnih objekata. Razvojem prostornog spektra električnog polja na sumu eksponencijalnih funkcija s kompleksnim eksponentima (GPOF aproksimacija), radijacijski integral svodi se na sumu jednostavnijih integrala koje je moguće riješiti analitičkim putem, pri čemu svaki tako dobiveni integral označava jedan valni objekt koji rigorozno zadovoljava valnu jednadžbu. Veza valnih objekata s elektromagnetskim poljem uspostavlja se upotrebom vektorskih potencijala. U svrhu računanja refleksije od zakrivljenih metalnih površina, metoda je povezana s fizikalnom optikom u novu hibridnu metodu. Ovakva procedura je ponovljiva i omogućuje analiziranje niza reflektora bez povećavanja zahtjeva na računalne resurse. Za provjeru valjanosti opisane metode razvijena je programska podrška za analiziranje niza elipsoidnih reflektora. Dobiveni rezultati uspoređeni su s rezultatima dobivenim postojećim metodama ugrađenim u komercijalne elektromagnetske simulatore, kao i s egzaktnim rezultatima dobivenim izravno numeričkim integriranjem. Razvijena metoda jednako je točna kao metoda Fizikalne optike, a omogućuje znatno kraća vremena proračuna pri analizi sustava s više reflektora.
Keywords
Keywords (croatian)
Languageenglish
URN:NBNurn:nbn:hr:168:505709
Promotion2010
Study programmeTitle: Doctoral study programme "Electrical Engineering and Computing"
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, po-dručje tehničkih znanosti (doktor/doktorica znanosti, po-dručje tehničkih znanosti)
Type of resourceText
Extent159 str. : graf. prikazi
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-03-19 15:36:42