Title :
A CMOS bandpass filter with wide-tuning range for wireless applications
Author :
Gao, Zhiqiang ; Yu, Mingyan ; Ye, Yizheng ; Ma, Jianguo
Author_Institution :
Microelectron. Center, Harbin Inst. of Technol.
Abstract :
A 2nd order RF bandpass filter with Q-enhancement active inductor is presented. In the filter, a design technique for a tunable Q-enhancement CMOS active inductor operating in the wide RF-band is described. Moreover, issues related to noise and stability of the active inductor is addressed. Simulated performance presented shows that the filter has about 50.6dB spurious free dynamic range (SFDR) at 2.45GHz with Qap30, and the center frequency of the filter using a 0.25-mum CMOS process can be operated at the 1.60G-2.45GHz frequency band under a 1.8V power supply. The filter is suited for multi-band wireless applications
Keywords :
CMOS integrated circuits; UHF filters; UHF integrated circuits; active filters; band-pass filters; inductors; 0.25 micron; 1.60 to 2.45 GHz; 1.8 V; 2nd order RF bandpass filter; CMOS bandpass filter; Q-enhancement active inductor; multiband wireless applications; spurious free dynamic range; Active inductors; Active noise reduction; Band pass filters; CMOS technology; Circuit noise; Q factor; RLC circuits; Radio frequency; Spirals; Tunable circuits and devices;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692723
