A 46MHz Biquad Gm-C High Q Bandpass Filter Design for Wireless Application

Author

Duan, Chong ; Li, Weimin

Author_Institution

Beijing Microelectron. Technol. Inst., Beijing, China

fYear

2011

fDate

12-14 Dec. 2011

Firstpage

69

Lastpage

72

Abstract

A 46MHz centre frequency, 2.046MHz bandwidth 6th order Chebyshev-I band pass integrated filter using a biquad Gm-C structure is designed and implemented. Negative resistance cells are used in the biquad structure to obtain high Q of the filter. The Tran conductor has a high linearity with source degeneration technique using MOS resistors. The whole filter circuit is designed and simulated in 0.35μm CMOS process. The pass-band ripple of the filter is 2.704dB and the 1.5 bandwidth attenuation is higher than 21dB. The total dc current consumption is 8.87mA @ 3.3V supply. The proposed band pass filter has been employed in the design of a wireless receiver front-end.

Keywords

CMOS integrated circuits; band-pass filters; biquadratic filters; radio equipment; CMOS process; Chebyshev-I band pass integrated filter; MOS resistors; bandwidth 2.046 MHz; biquad Gm-C high Q bandpass filter design; biquad Gm-C structure; biquad structure; current 8.87 mA; frequency 46 MHz; negative resistance cells; pass-band ripple; size 0.35 mum; voltage 3.3 V; wireless application; Band pass filters; Receivers; Resistance; Resistors; Resonator filters; Wireless communication; Biquad; Gm-C filter; High Q; Negative resistance; OTA; Source degeneration;

fLanguage

English

Publisher

ieee

Conference_Titel

Dependable, Autonomic and Secure Computing (DASC), 2011 IEEE Ninth International Conference on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4673-0006-3

Type

conf

DOI

10.1109/DASC.2011.36

Filename

6118355