Title :
A Q-factor enhancement technique for MMIC inductors
Author :
Danesh, M. ; Long, J.R. ; Hadaway, R.A. ; Harame, D.L.
Author_Institution :
Toronto Univ., Ont., Canada
Abstract :
An increase of 50% in the peak Q-factor and a wider operating bandwidth for monolithic inductors is achieved by exciting a microstrip structure differentially. Conventional excitation of a 8 nH spiral inductor fabricated in a production silicon IC technology resulted in a peak (measured) Q-factor of 6.6 at 1.6 GHz, while the differential connection showed a maximum Q-factor of 9.7 at 2.5 GHz. These experimental results compared favorably with the behaviour predicted from simulation.
Keywords :
MMIC; Q-factor; inductors; microstrip circuits; 0 to 6 GHz; MMIC inductors; Q-factor enhancement technique; differential excitation; microstrip structure; operating bandwidth; spiral inductor; Equivalent circuits; Impedance; Inductors; MMICs; Microstrip; Q factor; Shunt (electrical); Silicon; Spirals; Substrates;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 1998 IEEE
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4439-1
DOI :
10.1109/RFIC.1998.682084
