Title :
Distributed amplifiers with non-uniform filtering structures
Author :
Zhu, Yunliang ; Wu, Hui
Author_Institution :
Dept. of Electr. & Comput. Eng., Rochester Univ., NY
Abstract :
This paper presents a new design concept to better control both passband and stop-band characteristics of distributed amplifiers (DAs) by using non-uniform filtering structures instead of conventional constant-k sections. Two circuit prototypes with Butterworth and Chebyshev filtering were designed using network synthesis method, and implemented in a 0.18mum digital CMOS technology. The Butterworth prototype achieved 11.7dB gain, 9GHz bandwidth, and -5dB/GHz roll-off. The Chebyshev one achieved 10dB gain, 8.5GHz bandwidth and -8dB/GHz roll-off
Keywords :
Butterworth filters; CMOS digital integrated circuits; Chebyshev filters; distributed amplifiers; microwave filters; network synthesis; 10 dB; 11.7 dB; 8.5 GHz; 9 GHz; Butterworth filtering; Chebyshev filtering; digital CMOS technology; distributed amplifiers; network synthesis method; nonuniform filtering structures; Band pass filters; Bandwidth; CMOS technology; Chebyshev approximation; Circuits; Digital filters; Distributed amplifiers; Filtering; Passband; Prototypes;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9572-7
DOI :
10.1109/RFIC.2006.1651157
