Title :
A 3.8Ghz channel-select filter using 0.18μm CMOS
Author :
Ge, Jiandong ; Dinh, Anh
Author_Institution :
Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask., Canada
Abstract :
A high gain bandpass filter was designed as a channel-select filter for applications around 3.8GHz. Three stages of 2nd order were cascaded to have a high image rejection filter with an adjustable bandwidth. An experimental filter designed using standard 0.18μm CMOS occupies an area of 0.9×0.9mm2. This high performance filter provides a selected center frequency ranging from 3.6GHz to 3.8GHz, an image-rejection of 50dB and a tunable Q from 25 to 50 for bandwidth adjustment. The filter achieves a 15dB gain from a 1.8V supply.
Keywords :
CMOS integrated circuits; band-pass filters; integrated circuit design; 0.18 micron; 1.8 V; 15 dB; 3.6 to 3.8 GHz; CMOS; channel-select filter; high gain bandpass filter; image rejection filter; Band pass filters; Bandwidth; Capacitance; Capacitors; Circuit optimization; Frequency; Inductors; Tuning; Varactors; Voltage;
Conference_Titel :
SOC Conference, 2004. Proceedings. IEEE International
Print_ISBN :
0-7803-8445-8
DOI :
10.1109/SOCC.2004.1362471
