Current-mode high-frequency wavelet filter based on leap-frog multiple-loop feedback structure

Author

Wenshan Zhao ; Yichuang Sun

Author_Institution

Sch. of Electron. & Inf. Eng., Beijing Jiaotong Univ., Beijing, China

fYear

2013

fDate

4-7 Aug. 2013

Firstpage

209

Lastpage

212

Abstract

A method is proposed to realize high-frequency wavelet transform in analogue filter by employing Gm-C circuits and current-mode leap-frog multiple loop feedback structure in this paper. Also, to enhance the performance, the fully differential Nauta transconductor is utilized as the Gm cell in the design. The Marr wavelet is used as an example, with the design procedure illustrated. Using standard TSMC 0.18μm CMOS process, simulation results show that the center frequency of the Marr wavelet filter ranges from 63MHz to 142MHz by tuning supply voltage. The total power consumption is 69mW at 100MHz.

Keywords

CMOS integrated circuits; VHF filters; analogue circuits; circuit feedback; circuit simulation; current-mode circuits; integrated circuit design; radiofrequency integrated circuits; wavelet transforms; Gm-C circuit; Marr wavelet filter; analogue filter; current-mode high-frequency wavelet filter; current-mode leap-frog multiple loop feedback structure; frequency 63 MHz to 142 MHz; fully differential autotransconductor; high-frequency wavelet transform; power 69 mW; power consumption; size 0.18 mum; standard TSMC CMOS process; supply voltage tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (MWSCAS), 2013 IEEE 56th International Midwest Symposium on

Conference_Location

Columbus, OH

ISSN

1548-3746

Type

conf

DOI

10.1109/MWSCAS.2013.6674622

Filename

6674622