Title :
A 26 GHz coplanar stripline-based current sharing CMOS oscillator
Author :
Krishnaswamy, Harish ; Hashemi, Hossein
Author_Institution :
Dept. of Electr. Eng.-Electrophys., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
A coplanar stripline (CPS) based oscillator topology is introduced that is capable of achieving a low phase noise at extremely high frequencies. This oscillator uses a symmetric current sharing active topology and a high quality factor CPS design in a standard CMOS process without relying on any advanced process features such as the thick analog metal layer option. A 26 GHz prototype oscillator, fabricated in a 0.18 μm CMOS process, achieves a phase noise of -110 dBc/Hz at 1 MHz offset frequency, while drawing a current of 3.36 mA from a 1.8 V supply.
Keywords :
CMOS integrated circuits; MMIC oscillators; MOSFET; coplanar transmission lines; integrated circuit design; integrated circuit measurement; integrated circuit noise; network topology; phase noise; strip line circuits; 0.18 micron; 1.8 V; 26 GHz; 3.36 mA; CMOS process; CMOSFET; coplanar stripline based oscillator topology; coplanar stripline-based current sharing CMOS oscillator; current supply; extremely high frequency; high quality factor CPS design; offset frequency; phase noise; process features; prototype oscillator; standard CMOS process; symmetric current sharing active topology; CMOS process; Conductors; Frequency; Microstrip; Oscillators; Phase noise; Q factor; Silicon; Stripline; Topology;
Conference_Titel :
Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE
Print_ISBN :
0-7803-8983-2
DOI :
10.1109/RFIC.2005.1489607
