Title :
A 0-dB IL 2140±30 MHz bandpass filter utilizing Q-enhanced spiral inductors in standard CMOS
Author :
Soorapanth, Theerachet ; Wong, S. Simon
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
fDate :
5/1/2002 12:00:00 AM
Abstract :
A 3-pole Chebyshev bandpass filter, that employs on-chip passive elements with Q-enhancement technique, achieves an insertion loss of 0 dB and a passband of 60 MHz around a center frequency of 2140 MHz. The Q-enhancement technique is based on coupled-inductor negative resistance generator. In contrast to conventional negative resistance generator, this technique compensates resonator loss without introducing distortion in the filter response in the passband. Fabricated in a 0.25-μm CMOS, the filter consumes 7 mA from a 2.5-V supply. The filter occupies an area of 1.3 mm×2.7 mm
Keywords :
CMOS analogue integrated circuits; Chebyshev filters; Q-factor; UHF filters; UHF integrated circuits; band-pass filters; compensation; inductors; losses; negative resistance; 0.25 micron; 2.5 V; 2110 to 2170 MHz; 60 MHz; 7 mA; CMOS analog integrated circuits; Chebyshev filter; Q-enhanced spiral inductors; bandpass filter; coupled-inductor negative resistance generator; filter response; insertion loss; on-chip passive elements; resonator loss compensation; standard CMOS; Active filters; Band pass filters; Electric resistance; Inductors; Insertion loss; Passband; Q factor; Radio frequency; Resonator filters; Spirals;
Journal_Title :
Solid-State Circuits, IEEE Journal of
