Minimum component high frequency Gm-C wavelet filters based on Maclaurin series and multiple loop feedback

Author

Zhao, Wanfang ; Sun, Yue ; He, Yuhong

Author_Institution

Coll. of Electr. & Inf. Eng., Hunan Univ., Changsha, China

Volume

46

Issue

1

fYear

2010

Firstpage

34

Lastpage

36

Abstract

A minimum component high frequency Gm-C wavelet filter structure is presented. A simple function from Maclaurin series approximation is used and the current-mode follow-the-leader feedback structure is employed. For the seventh-order Marr wavelet bandpass filter, the proposed implementation architecture contains only seven ideal Gm-C integrators for poles and one transconductor for zeros. A 100 MHz wavelet filter has been designed and simulated in 0.18 m CMOS and results show the feasibility of the proposed approach.

Keywords

CMOS integrated circuits; VHF filters; band-pass filters; circuit feedback; current-mode circuits; integrating circuits; radiofrequency integrated circuits; series (mathematics); wavelet transforms; CMOS; Gm-C integrators; Maclaurin series approximation; current-mode follow-the-leader feedback; frequency 100 MHz; high frequency Gm-C wavelet filters; minimum component Gm-C wavelet filter; multiple loop feedback; seventh-order Marr wavelet bandpass filter; size 0.18 mum; transconductor;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2010.2741

Filename

5395554