Title :
100 GHz transformer-coupled quadrature oscillator
Author :
Lin, Kuan-Ting ; Chen, H.-K. ; Lu, Shey-Shi
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A 96.4-100.8 GHz quadrature oscillator utilising transformer-coupled and magnetic tuning techniques has been implemented in 90 nm CMOS technology. Under 1 V supply operation, experimental results show that the phase and amplitude error between I and Q paths are smaller than 1.6- and 0.9 dB with power dissipation from 8.7 to 21 mW. The measured phase noise is -110.4 dBc/Hz at 10 MHz-offset away from the downconverted 98.6 GHz carrier. This oscillator occupies a chip area of 0.357 mm2.
Keywords :
CMOS analogue integrated circuits; millimetre wave integrated circuits; millimetre wave oscillators; CMOS technology; I paths; Q paths; amplitude error; frequency 10 MHz; frequency 96.4 GHz to 100.8 GHz; magnetic tuning techniques; phase error; power 8.7 mW to 21 mW; size 90 nm; transformer-coupled quadrature oscillator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.3492
