DocumentCode :
1011026
Title :
Log-domain wave filters
Author :
Psychalinos, C. ; Fragoulis, N. ; Haritantis, I.
Author_Institution :
Phys. Dept., Aristotle Univ. of Thessaloniki, Greece
Volume :
51
Issue :
6
fYear :
2004
fDate :
6/1/2004 12:00:00 AM
Firstpage :
299
Lastpage :
306
Abstract :
A systematic method for designing log-domain wave filters is presented. Wave filters simulate topologically and functionally passive doubly terminated LC ladder prototype filters of low sensitivity. The design in the log-domain is based on a transposition of the signal flow graph (SFG) that corresponds to the wave equivalent of elementary two-port blocks in the linear domain, to the corresponding log-domain SFG. This is achieved by using an appropriate set of complementary operators, in order to preserve the linear operation of the whole circuit. Simulation results of a fifth-order low-pass and a fourth-order bandpass log-domain wave filter are given, using HSPICE. The proposed circuits are suitable for low-voltage operation and in high-frequency applications.
Keywords :
SPICE; active filters; analogue integrated circuits; band-pass filters; ladder filters; low-pass filters; signal flow graphs; two-port networks; HSPICE; LC ladder prototype filter; analog integrated circuits; bandpass filter; elementary two-port blocks; high-frequency active filter; high-frequency applications; linear domain; linear operation; log-domain SFG; log-domain circuit; log-domain wave filter; low-pass filter; low-voltage operation; signal flow graph; wave active filter; Active filters; Circuit simulation; Design methodology; Flow graphs; Laboratories; Passive filters; Prototypes; Psychology; Virtual prototyping; Voltage;
fLanguage :
English
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
Publisher :
ieee
ISSN :
1549-7747
Type :
jour
DOI :
10.1109/TCSII.2004.827550
Filename :
1306594
Link To Document :
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