A 19.7 MHz, Fifth-Order Active-RC Chebyshev LPF for Draft IEEE802.11n With Automatic Quality-Factor Tuning Scheme

Author

Kousai, Shouhei ; Hamada, Mototsugu ; Ito, Rui ; Itakura, Tetsuro

Author_Institution

Toshiba Corp., Kawasaki

Volume

42

Issue

11

fYear

2007

Firstpage

2326

Lastpage

2337

Abstract

A fifth-order LPF with a quality factor (Q) tuning circuit has been implemented for draft IEEE802.11n in a 0.13 CMOS technology. The proposed Q tuning technique realizes a low-power 19.7 MHz, active-RC Chebyshev LPF. The filter has dB gain, 30 nV/Hz^1/2 input-referred noise, 113 dBmuV input , P 1dB,draws 7.5 mA current from 1.5 V supply, and occupies an area of 0.2 mm².

Keywords

CMOS integrated circuits; Chebyshev filters; Q-factor; active filters; field effect MMIC; low-power electronics; microwave filters; wireless LAN; CMOS technology; automatic quality factor tuning scheme; current 7.5 mA; draft IEEE802.11n; fifth order active RC Chebyshev LPF; frequency 19.7 MHz; low power electronics; size 0.13 mum; tuning circuit; voltage 1.5 V; Band pass filters; Bandwidth; Broadband amplifiers; Chebyshev approximation; Frequency response; OFDM; Power filters; Prototypes; Wideband; Wireless LAN; Active filters; Chebyshev filters; quality factor ($Q$); wireless local area network (WLAN);

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.2007.906189

Filename

4362099