Title :
Design and analysis of DC-to-14-GHz and 22-GHz CMOS cascode
Author :
Liu, Ren-Chieh ; Lin, Chin-Shen ; Deng, Kuo-Liang ; Wang, Huei
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The designs of two fully integrated CMOS cascode distributed amplifiers (DAs) with 14-GHz and 22-GHz bandwidth are presented. Cascode gain cells and m-derived matching sections are used to enhance the gain and bandwidth performance. These amplifiers demonstrated the highest frequency and widest bandwidth of operation for amplifiers using regular CMOS processes to date. This paper also describes the analysis to design the cascode CMOS DA, together with the small-signal models, EM simulation of the spiral inductors on the silicon substrate, and the analysis of the cascode device. Good agreement between measured and simulated results was achieved for both of the DA designs.
Keywords :
CMOS integrated circuits; MMIC amplifiers; UHF amplifiers; UHF integrated circuits; distributed amplifiers; wideband amplifiers; 0 to 14 GHz; 14 GHz; 22 GHz; CMOS cascode analysis; CMOS cascode design; EM simulation; MMIC; bandwidth performance enhancement; cascode CMOS DA; cascode gain cells; distributed amplifiers; fully integrated CMOS cascode; gain performance enhancement; m-derived matching section; small-signal models; spiral inductors; Analytical models; Bandwidth; CMOS process; Distributed amplifiers; Frequency; Inductors; Operational amplifiers; Performance gain; Semiconductor device modeling; Spirals; CMOS; MMIC; distributed amplifier;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2004.831795
