Naslov
Tuning Elliptic Filters with a 'Tuning Biquad'

Autori
Jurišić, Dražen ; Moschytz, George S. ; Mijat, Neven

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

Izvornik
Proceedings of the 2009 IEEE International Symposium on Circuits and Systems (ISCAS 2009) / Lai, Michael ; Sheu, Bing ; Swamy, M.N.S. - Taipei : Institute of Electrical and Electronics Engineers (IEEE), 2009, 45-48

ISBN
978-1-4244-3827-3

Skup
2009 IEEE International Symposium on Circuits and Systems

Mjesto i datum
Taipei, Tajvan, 24.05.2009. - 27.05.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Elliptic Filters; Tuning

Sažetak
This paper presents an optimum tuning procedure for high-order low-pass (LP) elliptic filters. Since elliptic filters are often used to satisfy very tight specifications, they often need to be tuned accurately. In this paper, we describe the tuning of one biquad, the 'tuning biquad', in a cascade of biquads. It is shown by Matlab simulations that the best choice for the tuning biquad consists of the pole pair with the highest pole Q ('maximum-Q poles') combined with the zero pair with the lowest frequency ('minimum-frequency zeros'). We also show how standard tuning procedures, such as those for the Tow-Thomas biquad, lead to excellent results. As an example, the tuning procedure is performed on a normalized seventh-order elliptic LP filter.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA