Abstract
A general high-Q biquad filter architecture capable of operating in the GHz range is proposed and analyzed. This filter, which is usable in bandpass and low-pass applications, utilizes two effective Q-enhancement techniques to circumvent the low-Q characteristics inherent in the circuit. Simulation results employing standard 0.5 /spl mu/m CMOS technology have successfully verified that the center frequency tuning and hybrid Q-tuning techniques operate between 1 GHz to 2.3 GHz center frequencies with Q ranging from 4.8 to over 1000. A tunable bandpass filter with a center frequency at 1.5 GHz and a low-pass filter with a center frequency at 2.07 GHz each having Q equal to 31 have been designed to have 63 dB and 44 dB input dynamic range, and power dissipation equal to 30.5 mW and 27.8 mW, respectively.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
