Title :
Compact 138-GHz amplifier with 18-dB peak gain and 27-GHz 3-dB bandwidth
Author :
S. Hara;I. Watanabe;N. Sekine;A. Kasamatsu;K. Katayama;K. Takano T. Yoshida;S. Amakawa;M. Fujishima
Author_Institution :
Advanced ICT Research Institute, National Institute of Information and Communications Technology, Tokyo, Japan
Abstract :
This paper presents a wideband differential amplifier operating at 138 GHz in 40-nm CMOS. It is composed of five differential common source stages with cross-coupled capacitors. A small-signal gain of 18 dB at 138 GHz and a 3-dB bandwidth of 27 GHz are achieved. It consumes 75 mW from a 0.94-V voltage supply. The die area with balun and pads is 945 × 842 μm2 and the core size not including input/output matching networks is 201 × 284 μm2. The small core area is realized by using a refined "fishbone" layout technique.
Keywords :
"CMOS integrated circuits","Gain","Impedance matching","Bandwidth","Layout","Metals","Differential amplifiers"
Conference_Titel :
Radio-Frequency Integration Technology (RFIT), 2015 IEEE International Symposium on
DOI :
10.1109/RFIT.2015.7377885
