DocumentCode :
1421756
Title :
Multiterminal gyrator
Author :
Holt, A.G.J. ; Linggard, R.L.
Author_Institution :
University of Newcastle upon Tyne, Merz Laboratories, Department of Electrical Engineering, Newcastle upon Tyne, UK
Volume :
117
Issue :
8
fYear :
1970
fDate :
8/1/1970 12:00:00 AM
Firstpage :
1591
Lastpage :
1598
Abstract :
The multiterminal-gyrator concept is introduced as an extension of the well known 2-port device. In general, it is treated as having n input and m output terminals plus a reference or earthed terminal, common to both input and output. The (n + m + 1)-terminal device is therefore mathematically described using an (n + m)th-order admittance matrix. Both the mathematical characterisation and impedance-inverting properties of the multigyrator are shown to be directly analogous to those of its 2-port counterpart. An active realisation of the generalised multigyrator is proposed which uses unity-gain voltage and ± unity-gain current amplifiers. The method is quite general and uses n + m terminals. The actual gyrator transconductances are defined by an interconnecting network of resistors. The use of multigyrator capacitor networks to simulate inductor networks is shown to be possible and synthesis examples are given. Finally, the results of two experimental multigyrator filters are given.
Keywords :
active filters; gyrators;
fLanguage :
English
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
Publisher :
iet
ISSN :
0020-3270
Type :
jour
DOI :
10.1049/piee.1970.0282
Filename :
5249298
Link To Document :
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