RC Polyphase Filter as Complex Analog Hilbert Filter

RC Polyphase Filter as Complex Analog Hilbert Filter

This paper presents that the RC polyphase filer has characteristics as a complex analog Hilbert filter. Phase characteristics of the RC polyphase filter have the same as the Hilbert filter. Also its gain characteristics can be approximated as the Hilbert filter; as its order becomes higher, its gain...

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Veröffentlicht in:Applied Mechanics and Materials 2019-02, Vol.888, p.29-36
Hauptverfasser: Kobayashi, Haruo, Sekiyama, Ryo, Sasaki, Shu, Tamura, Yoshiro, Asami, Koji
Format: Artikel
Sprache:eng
Schlagworte:
Computer simulation
Fourier transforms
Signal processing
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Zusammenfassung:This paper presents that the RC polyphase filer has characteristics as a complex analog Hilbert filter. Phase characteristics of the RC polyphase filter have the same as the Hilbert filter. Also its gain characteristics can be approximated as the Hilbert filter; as its order becomes higher, its gain characteristics become closer to the Hilbert filter. We have proved these for 1st to 4th RC polyphase filters, as well as in general n-th order case, and also confirmed with numerical simulations.
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.888.29