Title :
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
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/Hz1/2 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);
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2007.906189
