Title :
On the exact realisation of LC ladder finite transmission zeros in log-domain: a theoretical study
Author :
Drakakis, E.M. ; Payne, A.J.
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
This paper describes a procedure for the exact realisation of LC ladder finite transmission zeros in the log-domain. The synthesis of a third-order elliptic response proceeds by means of the recently identified Log-Domain State-Space (LDSS) and incorporates Ngarnmil´s et. al. “log-domain differentiator”. The resulting topology is compared to the pioneering design of Ferry and Roberts (1996) and is shown to provide a considerable improvement in linearity
Keywords :
active filters; current-mode circuits; elliptic filters; frequency response; ladder filters; network synthesis; poles and zeros; state-space methods; LC ladder finite transmission zeros; linearity improvement; log-domain differentiator; log-domain state-space; third-order elliptic response; Band pass filters; Circuit synthesis; Circuit topology; Educational institutions; Electronic switching systems; Filtering theory; Linearity; Nonlinear filters; Signal processing; Signal synthesis;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.857059
