Naslov
Cutoff Frequency Optimization of Ultraspherical Microstrip Filter

Autori
Ivšić, Branimir ; Dadić, Martin ; Malarić, Roman

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
International Conference Proceedings of International Conference on Smart Systems and Technologies 2018 (SST 2018) / Žagar, Drago ; Martinović, Goran ; Rimac Drlje, Snježana ; Galić, Irena - Osijek : Institute of Electrical and Electronics Engineers (IEEE), 2018, 85-89

ISBN
978-1-5386-7189-4

Skup
International Conference on Smart Systems and Technologies 2018 (SST 2018)

Mjesto i datum
Osijek, Hrvatska, 10.10.2018. - 12.10.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ultraspherical polynomials ; stepped-impedance microstrip filter ; filter cutoff frequency optimization

Sažetak
In this paper the ultraspherical polynomial function is converted into physically realizable filter characteristics. The obtained characteristic possesses capability to design more classes of filters based on specifications, due to the two parameters that can be chosen freely. The practical Darlington synthesis of the third order stepped-impedance microstrip filter prototype is presented while it is noted that the filter cutoff frequency needs further optimization to take into account the practical coaxial to microstrip transition. By varying the filter dimensions in simulations it was found that the realistic transition lowers the cutoff frequency by around 10%, which needs to be taken into account in the filter design.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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