Title :
A widely tunable active RF filter topology
Author :
Allidina, Karim ; Mirabbasi, Shahriar
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC
Abstract :
An active inductor based bandpass radio-frequency (RF) filter circuit topology is presented that achieves a wide tuning range. Based on the proposed structure, a prototype 2th-order filter is designed, simulated, and laid out in a 0.18mum CMOS process. The center frequency of the filter can be tuned from 880MHz to 3.72GHz. The quality factor of the filter can also be tuned. The filter, including the input and output buffers, consumes between 12 to 26mW from a 1.8V supply and occupies a chip area of 115mum times 70mum
Keywords :
CMOS analogue integrated circuits; Q-factor; UHF filters; active filters; inductors; integrated circuit design; microwave filters; 0.18 micron; 0.88 to 3.72 GHz; 1.8 V; 115 micron; 12 to 26 mW; 70 micron; CMOS process; active RF filter; active inductor; bandpass filter; tunable filter; tunable quality factor; Active filters; Active inductors; Band pass filters; CMOS process; Circuit optimization; Circuit simulation; Circuit topology; Radio frequency; Tunable circuits and devices; Virtual prototyping;
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.2006.1692726
